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235 results on '"T. Kajino"'

1. Retraction notice to: r-process nucleosynthesis in the MHD+neutrino-heated collapsar jet

Author: K. Nakamura, T. Kajino, G. J. Mathews, S. Sato, and S. Harikae
Subjects: Space and Planetary Science, Astronomy and Astrophysics
Abstract: We have become aware, through a whistle-blower complaint, of very extensive overlap between this article and International Journal of Modern Physics E., Vol. 22, No. 10, 1330022 (2013) by the same authors. A&A therefore retracts this article. The corresponding author, Grant J. Mathews, understands our decision. Ko Nakamura, Toshitaka Kajino, and Seiji Harikae were copied on the correspondence and have not objected. We have been unable to find recent contact information for Susumu Sato.
Published: 2022
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2. β-Decay Half-Lives of 110 Neutron-Rich Nuclei across theN=82Shell Gap: Implications for the Mechanism and Universality of the AstrophysicalrProcess

Author: G. Lorusso, S. Nishimura, Z. Y. Xu, A. Jungclaus, Y. Shimizu, G. S. Simpson, P.-A. Söderström, H. Watanabe, F. Browne, P. Doornenbal, G. Gey, H. S. Jung, B. Meyer, T. Sumikama, J. Taprogge, Zs. Vajta, J. Wu, H. Baba, G. Benzoni, K. Y. Chae, F. C. L. Crespi, N. Fukuda, R. Gernhäuser, N. Inabe, T. Isobe, T. Kajino, D. Kameda, G. D. Kim, Y.-K. Kim, I. Kojouharov, F. G. Kondev, T. Kubo, N. Kurz, Y. K. Kwon, G. J. Lane, Z. Li, A. Montaner-Pizá, K. Moschner, F. Naqvi, M. Niikura, H. Nishibata, A. Odahara, R. Orlandi, Z. Patel, Zs. Podolyák, H. Sakurai, H. Schaffner, P. Schury, S. Shibagaki, K. Steiger, H. Suzuki, H. Takeda, A. Wendt, A. Yagi, and K. Yoshinaga
Published: 2015
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3. Relativistic Coulomb screening in pulsational pair instability supernovae

Author: M. A. Famiano, K. Mori, A. B. Balantekin, T. Kajino, M. Kusakabe, and G. Mathews
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE), Astrophysics - Solar and Stellar Astrophysics, Space and Planetary Science, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Astronomy and Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, Solar and Stellar Astrophysics (astro-ph.SR)
Abstract: Context. Pulsational pair-instabilitye supernovae (PPISNe) and pair instability supernovae (PISNe) are the result of a thermonuclear runaway in the presence of a background electron-positron pair plasma. As such, their evolution and resultant black hole (BH) masses could possibly be affected by screening corrections due to the electron pair plasma. Aims. Sensitivity of PISNe and PPISNe to relativistic weak screening has been explored. Methods. In this paper a weak screening model that includes effects from relativistic pair production has been developed and applied at temperatures approaching and exceeding the thresh old for pair production. This screening model replaces "classical" screening commonly used in astrophysics. Modifications to the weak screening electron Debye length are incorporated in a computationally tractable analytic form with. Results. In PPISNe the BH masses were found to increase somewhat at high temperatures, though this increase is small. The BH collapse is also found to occur at earlier times, and the pulsational morphology also changes. In addition to the resultant BH mass, the sensitivity to the screening model of the pulsational period, the pulse structure, the PPISN-to-PISN transition, and the shift in the BH mass gap has been analyzed. The dependence of the composition of the ejected mass was also examined., 24 pages, 13 figures
Published: 2022
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4. Cosmological Solutions to the Lithium Problem

Author: Tahani R. Makki, Dai G. Yamazaki, Motohiko Kusakabe, Yudong Luo, T. Kajino, M. F. El Eid, Nishanth Sasankan, Grant J. Mathews, and Atul Kedia
Subjects: Nuclear reaction, Nuclear physics, Physics, Cosmology and Nongalactic Astrophysics (astro-ph.CO), chemistry, Nucleosynthesis, FOS: Physical sciences, chemistry.chemical_element, Astrophysics::Solar and Stellar Astrophysics, Lithium, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics::Galaxy Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: The abundance of primordial lithium is derived from the observed spectroscopy of metal-poor stars in the galactic halo. However, the observationally inferred abundance remains at about a factor of three below the abundance predicted by standard big bang nucleosynthesis (BBN). The resolution of this dilemma can be either astrophysical (stars destroy lithium after BBN), nuclear (reactions destroy lithium during BBN), or cosmological, i.e. new physics beyond the standard BBN is responsible for destroying lithium. Here, we overview a variety of possible cosmological solutions, and their shortcomings. On the one hand, we examine the possibility of physical processes that modify the velocity distribution of particles from the usually assumed Maxwell-Boltzmann statistics. A physical justification for this is an inhomogeneous spatial distribution of domains of primordial magnetic field strength as a means to reduce the primordial lithium abundance. Another possibility is that scattering with the mildly relativistic electrons in the background plasma alters the baryon distribution to one resembling a Fermi-Dirac distribution. We show that neither of these possibilities can adequately resolve the lithium problem. A number of alternate hybrid models are discussed including a mix of neutrino degeneracy, unified dark matter, axion cooling, and the presence of decaying and/or charged supersymmetric particles., 6 pages, 0 figures, conference proceedings
Published: 2019

5. Review of uncertainties in the cosmic supernova relic neutrino background

Author: T. Kajino, Luca Boccioli, Jun Hidaka, and Grant J. Mathews
Subjects: Physics, Diffuse radiation, Nuclear and High Energy Physics, COSMIC cancer database, Physics::Instrumentation and Detectors, Black hole formation, Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Phenomenology, General Physics and Astronomy, Astronomy and Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Neutron star, Supernova, Supergiant, Neutrino, Astrophysics::Galaxy Astrophysics
Abstract: We review the computation of and associated uncertainties in the current understanding of the relic neutrino background due to core-collapse supernovae, black hole formation and neutron star merger events. We consider the current status of uncertainties due to the nuclear equation of state (EoS), the progenitor masses, the source supernova neutrino spectrum, the cosmological star formation rate, the stellar initial mass function, neutrino oscillations, and neutrino self-interactions. We summarize the current viability of future neutrino detectors to distinguish the nuclear EoS and the temperature of supernova neutrinos via the detected relic supernova neutrino spectrum.
Published: 2020
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6. First observations of speed of light tracks by a fluorescence detector looking down on the atmosphere

Author: G. Abdellaoui, S. Abe, J.H. Adams Jr., A. Ahriche, D. Allard, L. Allen, G. Alonso, L. Anchordoqui, A. Anzalone, Y. Arai, K. Asano, R. Attallah, H. Attoui, M. Ave Pernas, S. Bacholle, M. Bakiri, P. Baragatti, P. Barrillon, S. Bartocci, J. Bayer, B. Beldjilali, T. Belenguer, N. Belkhalfa, R. Bellotti, A. Belov, K. Belov, K. Benmessai, M. Bertaina, P.L. Biermann, S. Biktemerova, F. Bisconti, N. Blanc, J. Błȩcki, S. Blin-Bondil, P. Bobik, M. Bogomilov, E. Bozzo, A. Bruno, K.S. Caballero, F. Cafagna, D. Campana, J-N. Capdevielle, F. Capel, A. Caramete, L. Caramete, P. Carlson, R. Caruso, M. Casolino, C. Cassardo, A. Castellina, C. Catalano, O. Catalano, A. Cellino, M. Chikawa, G. Chiritoi, M.J. Christl, V. Connaughton, L. Conti, G. Cordero, G. Cotto, H.J. Crawford, R. Cremonini, S. Csorna, A. Cummings, S. Dagoret-Campagne, C. De Donato, C. de la Taille, C. De Santis, L. del Peral, M. Di Martino, A. Diaz Damian, T. Djemil, I. Dutan, A. Ebersoldt, T. Ebisuzaki, R. Engel, J. Eser, F. Fenu, S. Fernández-González, J. Fernández-Soriano, S. Ferrarese, M. Flamini, C. Fornaro, M. Fouka, A. Franceschi, S. Franchini, C. Fuglesang, T. Fujii, J. Fujimoto, M. Fukushima, P. Galeotti, E. García-Ortega, G. Garipov, E. Gascón, J. Genci, G. Giraudo, C. González Alvarado, P. Gorodetzky, R. Greg, F. Guarino, A. Guzmán, Y. Hachisu, M. Haiduc, B. Harlov, A. Haungs, J. Hernández Carretero, W. Hidber Cruz, D. Ikeda, N. Inoue, S. Inoue, F. Isgrò, Y. Itow, T. Jammer, S. Jeong, E. Joven, E.G. Judd, A. Jung, J. Jochum, F. Kajino, T. Kajino, S. Kalli, I. Kaneko, Y. Karadzhov, J. Karczmarczyk, K. Katahira, K. Kawai, Y. Kawasaki, A. Kedadra, H. Khales, B.A. Khrenov, Jeong-Sook Kim, Soon-Wook Kim, M. Kleifges, P.A. Klimov, D. Kolev, H. Krantz, I. Kreykenbohm, K. Kudela, Y. Kurihara, A. Kusenko, E. Kuznetsov, A. La Barbera, C. Lachaud, H. Lahmar, F. Lakhdari, R. Larson, O. Larsson, J. Lee, J. Licandro, L. López Campano, M.C. Maccarone, S. Mackovjak, M. Mahdi, D. Maravilla, L. Marcelli, J.L. Marcos, A. Marini, W. Marszał, K. Martens, Y. Martín, O. Martinez, M. Martucci, G. Masciantonio, K. Mase, M. Mastafa, R. Matev, J.N. Matthews, N. Mebarki, G. Medina-Tanco, M.A. Mendoza, A. Menshikov, A. Merino, J. Meseguer, S.S. Meyer, J. Mimouni, H. Miyamoto, Y. Mizumoto, A. Monaco, J.A. Morales de los Ríos, C. Moretto, S. Nagataki, S. Naitamor, T. Napolitano, W. Naslund, R. Nava, A. Neronov, K. Nomoto, T. Nonaka, T. Ogawa, S. Ogio, H. Ohmori, A.V. Olinto, P. Orleański, G. Osteria, A. Pagliaro, W. Painter, M.I. Panasyuk, B. Panico, G. Pasqualino, E. Parizot, I.H. Park, B. Pastircak, T. Patzak, T. Paul, I. Pérez-Grande, F. Perfetto, T. Peter, P. Picozza, S. Pindado, L.W. Piotrowski, S. Piraino, L. Placidi, Z. Plebaniak, S. Pliego, A. Pollini, Z. Polonski, E.M. Popescu, P. Prat, G. Prévôt, H. Prieto, G. Puehlhofer, M. Putis, J. Rabanal, A.A. Radu, M. Reyes, M. Rezazadeh, M. Ricci, M.D. Rodríguez Frías, M. Rodencal, F. Ronga, G. Roudil, I. Rusinov, M. Rybczyński, M.D. Sabau, G. Sáez Cano, H. Sagawa, Z. Sahnoune, A. Saito, N. Sakaki, H. Salazar, J.C. Sanchez Balanzar, J.L. Sánchez, A. Santangelo, A. Sanz-Andrés, M. Sanz Palomino, O. Saprykin, F. Sarazin, M. Sato, T. Schanz, H. Schieler, V. Scotti, S. Selmane, D. Semikoz, M. Serra, S. Sharakin, H.M. Shimizu, K. Shinozaki, T. Shirahama, B. Spataro, I. Stan, T. Sugiyama, D. Supanitsky, M. Suzuki, B. Szabelska, J. Szabelski, N. Tajima, T. Tajima, Y. Takahashi, H. Takami, M. Takeda, Y. Takizawa, M.C. Talai, C. Tenzer, S.B. Thomas, O. Tibolla, L. Tkachev, H. Tokuno, T. Tomida, N. Tone, S. Toscano, M. Traïche, R. Tsenov, Y. Tsunesada, K. Tsuno, J. Tubbs, S. Turriziani, Y. Uchihori, O. Vaduvescu, J.F. Valdés-Galicia, P. Vallania, G. Vankova, C. Vigorito, L. Villaseñor, B. Vlcek, P. von Ballmoos, M. Vrabel, S. Wada, J. Watanabe, J. Watts Jr., M. Weber, R. Weigand Muñoz, A. Weindl, L. Wiencke, M. Wille, J. Wilms, Z. Włodarczyk, T. Yamamoto, J. Yang, H. Yano, I.V. Yashin, D. Yonetoku, S. Yoshida, R. Young, I.S Zgura, M.Yu. Zotov, A. Zuccaro Marchi, AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Organisation de Micro-Électronique Générale Avancée (OMEGA), École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut de recherche en astrophysique et planétologie (IRAP), Centre National de la Recherche Scientifique (CNRS)-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS), JEM-EUSO, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Abdellaoui, G., Abe, S., Adams, J., Ahriche, A., Allard, D., Allen, L., Alonso, G., Anchordoqui, L., Anzalone, A., Arai, Y., Asano, K., Attallah, R., Attoui, H., Ave Pernas, M., Bacholle, S., Bakiri, M., Baragatti, P., Barrillon, P., Bartocci, S., Bayer, J., Beldjilali, B., Belenguer, T., Belkhalfa, N., Bellotti, R., Belov, A., Belov, K., Belz, J. W., Benmessai, K., Bertaina, M., Biermann, P. L., Biktemerova, S., Bisconti, F., Blanc, N., Blecki, J., Blin-Bondil, S., Bobik, P., Bogomilov, M., Bozzo, E., Bruno, A., Caballero, K. S., Cafagna, F., Campana, D., Capdevielle, J-N., Capel, F., Caramete, A., Caramete, L., Carlson, P., Caruso, R., Casolino, M., Cassardo, C., Castellina, A., Catalano, O., Cellino, A., Chikawa, M., Chiritoi, G., Christl, M. J., Connaughton, V., Conti, L., Cordero, G., Cotto, G., Crawford, H. J., Cremonini, R., Csorna, S., Cummings, A., Dagoret-Campagne, S., De Donato, C., de la Taille, C., De Santis, C., del Peral, L., Di Martino, M., Djemil, T., Dutan, I., Ebersoldt, A., Ebisuzaki, T., Engel, R., Eser, J., Fenu, F., Fernández-González, S., Fernández-Soriano, J., Ferrarese, S., Flamini, M., Fornaro, C., Fouka, M., Franceschi, A., Franchini, S., Fuglesang, C., Fujii, T., Fujimoto, J., Fukushima, M., Galeotti, P., García-Ortega, E., Garipov, G., Gascón, E., Genci, J., Giraudo, G., González Alvarado, C., Gorodetzky, P., Greg, R., Guarino, F., Guzmán, A., Hachisu, Y., Haiduc, M., Harlov, B., Haungs, A., Hernández Carretero, J., Hidber Cruz, W., Ikeda, D., Inoue, N., Inoue, S., Isgrò, F., Itow, Y., Jammer, T., Jeong, S., Joven, E., Judd, E., Jung, A., Jochum, J., Kajino, F., Kajino, T., Kalli, S., Kaneko, I., Karadzhov, Y., Karczmarczyk, J., Katahira, K., Kawai, K., Kawasaki, Y., Kedadra, A., Khales, H., Khrenov, B. A., Kim, Jeong-Sook, Kim, Soon-Wook, Kleifges, M., Klimov, P. A., Kolev, D., Krantz, H., Kreykenbohm, I., Kudela, K., Kurihara, Y., Kusenko, A., Kuznetsov, E., La Barbera, A., Lachaud, C., Lahmar, H., Lakhdari, F., Larsson, O., Lee, J., Licandro, J., López Campano, L., Maccarone, M. C., Mackovjak, S., Mahdi, M., Maravilla, D., Marcelli, L., Marcos, J., Marini, A., Marszal, W., Martens, K., Martín, Y., Martinez, O., Martucci, M., Masciantonio, G., Mase, K., Mustafa, M., Matev, R., Matthews, J., Mebarki, N., Medina-Tanco, G., Mendoza, M. A., Menshikov, A., Merino, A., Meseguer, J., Meyer, S. S., Mimouni, J., Miyamoto, H., Mizumoto, Y., Monaco, A., Morales de los Ríos, J. A., Nagataki, S., Naitamor, S., Napolitano, T., Nava, R., Neronov, A., Nomoto, K., Nonaka, T., Ogawa, T., Ogio, S., Ohmori, H., Olinto, A. V., Orleański, P., Osteria, G., Pagliaro, A., Painter, W., Panasyuk, M. I., Panico, B., Parizot, E., Park, I. H., Pastircak, B., Patzak, T., Paul, T., Pérez-Grande, I., Perfetto, F., Peter, T., Picozza, P., Pindado, S., Piotrowski, L. W., Piraino, S., Placidi, L., Plebaniak, Z., Pliego, S., Pollini, A., Polonski, Z., Popescu, E. M., Prat, P., Prévôt, G., Prieto, H., Puehlhofer, G., Putis, M., Rabanal, J., Radu, A. A., Reyes, M., Rezazadeh, M., Ricci, M., Rodríguez Frías, M. D., Ronga, F., Roudil, G., Rusinov, I., Rybczyński, M., Sabau, M., Sáez Cano, G., Sagawa, H., Sahnoune, Z., Saito, A., Sakaki, N., Salazar, H., Sanchez Balanzar, J. C., Sánchez, J. L., Santangelo, A., Sanz-Andrés, A., Sanz Palomino, M., Saprykin, O., Sarazin, F., Sato, M., Schanz, T., Schieler, H., Scotti, V., Selmane, S., Semikoz, D., Serra, M., Sharakin, S., Shimizu, H. M., Shin, H. S., Shinozaki, K., Shirahama, T., Sokolsky, P., Spataro, B., Stan, I., Sugiyama, T., Supanitsky, D., Suzuki, M., Szabelska, B., Szabelski, J., Tajima, N., Tajima, T., Takahashi, Y., Takami, H., Takeda, M., Takizawa, Y., Talai, M. C., Tameda, Y., Tenzer, C., Thomas, S. B., Thomson, G. B., Tibolla, O., Tkachev, L., Tokuno, H., Tomida, T., Tone, N., Toscano, S., Traïche, M., Tsenov, R., Tsunesada, Y., Tsuno, K., Tubbs, J., Turriziani, S., Uchihori, Y., Vaduvescu, O., Valdés-Galicia, J. F., Vallania, P., Vankova, G., Vigorito, C., Villaseñor, L., Vlcek, B., von Ballmoos, P., Vrabel, M., Wada, S., Watanabe, J., Watts, J., Weber, M., Weigand Muñoz, R., Weindl, A., Wiencke, L., Wille, M., Wilms, J., Włodarczyk, Z., Yamamoto, T., Yang, J., Yano, H., Yashin, I. V., Yonetoku, D., Yoshida, S., Young, R., Zgura, I. S., Zotov, M. Yu., and Zuccaro Marchi, A.
Subjects: visible and IR photons, Balloon instrumentation, Detectors for UV, visible and IR photons, Lasers, Space instrumentation, Instrumentation, Mathematical Physics, Laser, chemistry.chemical_element, FOS: Physical sciences, 01 natural sciences, Fluorescence spectroscopy, law.invention, Aeronáutica, Atmosphere, Xenon, Optics, law, 0103 physical sciences, Calibration, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010303 astronomy & astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Detectors for UV, Physics, Instrumentation et méthodes en physique, 010308 nuclear & particles physics, business.industry, Detector, Autres mathématiques, Speed of light (cellular automaton), 3. Good health, Pathfinder, chemistry, business, Astrophysics - Instrumentation and Methods for Astrophysics, Detectors for UV, visible and IR photon
Abstract: EUSO-Balloon is a pathfinder mission for the Extreme Universe Space Observatory onboard the Japanese Experiment Module (JEM-EUSO). It was launched on the moonless night of the 25th of August 2014 from Timmins, Canada. The flight ended successfully after maintaining the target altitude of 38 km for five hours. One part of the mission was a 2.5 hour underflight using a helicopter equipped with three UV light sources (LED, xenon flasher and laser) to perform an inflight calibration and examine the detectors capability to measure tracks moving at the speed of light. We describe the helicopter laser system and details of the underflight as well as how the laser tracks were recorded and found in the data. These are the first recorded laser tracks measured from a fluorescence detector looking down on the atmosphere. Finally, we present a first reconstruction of the direction of the laser tracks relative to the detector., 0, SCOPUS: ar.j, info:eu-repo/semantics/published
Published: 2018
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7. Neutrino process with primitive meteorites and high power laser

Author: Tatsufumi Nakamura, M. D. Usang, Hideyuki Kotaki, K. Nomoto, Alexey Tolstov, T. Kajino, Ko Nakamura, Masaki Kando, Heamin Ko, Myung-Ki Cheoun, T. Hayakawa, M. Hashimoto, Motohiko Kusakabe, Shuntaro Chiba, Grant J. Mathews, and M. Ono
Subjects: Physics, Isotope, Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, High Energy Physics::Phenomenology, Nuclear physics, Supernova, Stars, Stellar nucleosynthesis, Photodisintegration, Excited state, High Energy Physics::Experiment, Nuclide, Neutrino, Nuclear Experiment
Abstract: A huge number of neutrinos emitted in core-collapse supernova explosions (ν process) play an important role in stellar nucleosynthesis of some rare nuclides. The study of the neutrino process can contribute to estimation of neutrino energy spectra and explosion mechanism. In the mass region heavier than iron, only three nuclides are known as the neutrino isotopes. If we can find other candidates for neutrino production, it helps to constrain precisely the neutrino energy spectra emitted from proto-neutron stars. A key input for the calculation of the neutrino process is destruction rates by photodisintegration reactions on excited nuclei at high temperature environments. We have proposed direct measurements of photon-induced reaction cross sections on nuclei excited by high power laser to simulate stellar environments.
Published: 2018
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8. Erratum to: Ultra high energy photons and neutrinos with JEM-EUSO

Author: S. Perez Cano, M. Bogomilov, M. Rybczyński, P. Gorodetzky, G. Cordero, K. Kawai, O. Martinez, Akinori Saito, Francesco Fenu, Y. Itow, Lech Wiktor Piotrowski, R. Matev, Toshikazu Ebisuzaki, J. N. Capdevielle, L. Santiago Crúz, Hiroyuki Sagawa, D. Ikeda, Ovidiu Vaduvescu, M. Lacombe, Claudio Cassardo, S. Yoshida, F. Guarino, Silvia Ferrarese, V. Scotti, T. Nonaka, A. Haungs, H. Schieler, I. Kreykenbohm, Y. Hachisu, T. Batsch, Y. Arai, E. Kuznetsov, T. J. Weiler, M. S. Briggs, Y. Tsunesada, R. Bechini, P. Picozza, Tomás Belenguer, M. Bonamente, M. Roth, N. Inoue, H. Salazar, M. Ave Pernas, L. Wiencke, C. de la Taille, K. Katahira, I. Fernández-Gómez, F. Cafagna, J. Licandro, K. Higashide, S. Ahmad, M. Unger, Maxim Gonchar, T. Tomida, M. I. Panasyuk, Ke Fang, M. Sakata, M. Reyes, L. Marcelli, J. Yang, D. Cline, H. Takami, R. Young, V. Connaughton, H. J. Crawford, L. del Peral, A. Franceschi, E. Parizot, A. Kusenko, P. Reardon, Hajime Yano, M. Di Martino, J. Hernández Carretero, A. Marini, M. Kleifges, D. Supanitsky, G. Siemieniec-Oziȩbło, M. Dupieux, Sergei A. Sharakin, Roberto Bellotti, G. Castellinic, J. Błȩcki, T. Paul, F. Dulucq, J. A. Morales de los Ríos, M. Chikawa, P. Vallania, Y. Karadzhov, S. Sánchez, G. Distratis, D. Allard, T. Tymieniecka, J. Sledd, M. Nagata, C. González Alvarado, M. Flamini, P. von Ballmoos, M. E. Bertaina, H. Lim, Dmitry V. Naumov, M. C. Maccarone, S. Selmane, G. Sáez-Cano, H. Ohmori, S. W. Kim, G. Medina-Tanco, G. Modestino, Y. Takizawa, C. Blaksley, H. Sato, A. Guzman, Susumu Inoue, T. Shibata, N. Tone, J. Watts, M. Suzuki, C. Pennypacker, T. Murakami, E. Joven, B. Pastircak, J. F. Valdés-Galicia, L. Tkachev, S. Csorna, J. Watanabe, M. Wille, R. Cremonini, J. Szabelski, Y. Mizumoto, P. Prat, J. Karczmarczyk, M. D. Sabau, M. Sanz Palomino, Y. Miyazaki, M. Putis, A. Sobey, Satoshi Wada, M. Takeda, T. Ogawa, H. H. Silva Lopez, M. Yu. Zotov, E. G. Judd, S. Piraino, A. Jung, G. Vankova, A. Cellino, K. Shinozaki, R. Nava, J. H. Adams, N. Sakaki, Gali Garipov, T. Napolitano, T. Mernik, Susana Briz, M. Karus, Angela V. Olinto, Fernando López, Andrea Santangelo, K. Yoshida, K. Mase, O. Tibolla, Rossella Caruso, L. Anchordoqui, P. Barrillon, S. Nagataki, J. Blümer, T. Shirahama, Domenico Finco, T. Patzak, D. Campana, J. Lee, K. Nomoto, C. Lachaud, S. Dagoret-Campagne, F. Tajima, C. Moretto, H. Prieto, P. L. Biermann, A. Anzalone, C. De Donato, T. Yamamoto, R. Engel, P. Baragatti, J. N. Albert, I. Rusinov, K. Belov, Thomas Schanz, J. S. Kim, V. S. Morozenko, Livio Conti, C. De Santis, A. Zuccaro Marchi, A. A. Berlind, M. Nagano Murakami, Mitsuteru Sato, F. Sarazin, Jörn Wilms, O. A. Saprykin, T. Tajima, H. M. Shimizu, J. Bayer, J. Geary, A. Pollini, Pavel Klimov, N. De Simone, T. Peter, N. Tajima, Y. Yamamoto, A. Dell’Oro, H. Tokuno, T. Sugiyama, G. Roudil, B. Harlov, Carlo Vigorito, K. Kudela, M. Weber, D. Monnier-Ragaigne, A. Segreto, H. Rothkaehl, C. Catalano, N. Blanc, C. Tenzer, D. Semikoz, I. H. Park, J. Fujimoto, G. Giraudo, T. Kajino, F. Ronga, G. Osteria, P. Bobik, S. Biktemerova, Francesco Isgrò, G. Prévôt, K. Tsuno, T. Pierog, S. Blin-Bondil, V. Andreev, D. Yonetoku, T. Wibig, K. Asano, B. A. Khrenov, H. Miyamoto, K. Słomińska, M. Ricci, A. Neronov, Z. Włodarczyk, P. Galeotti, D. Kolev, G. Gelmini, Simona Toscano, I. V. Yashin, S. Watanabe, R. Tsenov, I. Rodríguez, P. Orleański, G. Masciantonio, A. J. de Castro, M. Fukushima, Z. Plebaniak, A. Insolia, F. Kajino, L. Valore, B. Keilhauer, H. W. Park, A. Bruno, Y. Uchihori, K. Mannheim, Frederic Trillaud, B. Mot, Yukihiro Takahashi, Alfonso Monaco, Marco Casolino, Claudio Fornaro, G. Catalano, Y. Kawasaki, S. Falk, S. Ogio, H. Ikeda, A. Ebersoldt, L. Villaseñor, Y. Kurihara, D. Maravilla, T. Nakamura, M. Serra, I. Kaneko, B. Szabelska, M. J. Christl, and M. D. Rodríguez Frías
Subjects: Physics, High energy photon, Space and Planetary Science, Astrophysics::High Energy Astrophysical Phenomena, Physics::Space Physics, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, High Energy Physics::Experiment, Astronomy and Astrophysics, Neutrino, Neutrinos Photons Space observation
Abstract: Ultra high energy photons and neutrinos are carriers of very important astrophysical information. They may be produced at the sites of cosmic ray acceleration or during the propagation of the cosmic rays in the intergalactic medium. In contrast to charged cosmic rays, photon and neutrino arrival directions point to the production site because they are not deflected by the magnetic fields of the Galaxy or the intergalactic medium. In this work we study the characteristics of the longitudinal development of showers initiated by photons and neutrinos at the highest energies. These studies are relevant for development of techniques for neutrino and photon identification by the JEM-EUSO telescope. In particular, we study the possibility of observing the multi-peak structure of very deep horizontal neutrino showers with JEM-EUSO. We also discuss the possibility to determine the flavor content of the incident neutrino flux by taking advantage of the different characteristics of the longitudinal profiles generated by different type of neutrinos. This is of grate importance for the study of the fundamental properties of neutrinos at the highest energies. Regarding photons, we discuss the detectability of the cosmogenic component by JEM-EUSO and also estimate the expected upper limits on the photon fraction which can be obtained from the future JEM-EUSO data for the case in which there are no photons in the samples.
Published: 2015
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9. Measurement of the isomer production ratio for the Cd112(n,γ)Cd113 reaction using neutron beams at J-PARC

Author: A. Kimura, Shoji Nakamura, Yosuke Toh, Takehito Hayakawa, Hideo Harada, T. Kajino, Shuntaro Chiba, M. Huang, T. Shizuma, and Nobuyuki Iwamoto
Subjects: Physics, Isotope, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Resonance, 01 natural sciences, Neutron capture, Nucleosynthesis, 0103 physical sciences, Neutron, Production (computer science), Atomic physics, Spin (physics), 010303 astronomy & astrophysics, Energy (signal processing)
Abstract: The astrophysical origin of a rare isotope $^{115}\mathrm{Sn}$ remains an open question. An isomer (${T}_{1/2}=14.1\phantom{\rule{4pt}{0ex}}\mathrm{y}$) in $^{113}\mathrm{Cd}$ is an $s$-process branching point from which a nucleosynthesis flow reaches $^{115}\mathrm{Sn}$. The $s$-process abundance of $^{115}\mathrm{Sn}$ depends on the isomer production ratio in the $^{112}\mathrm{Cd}(n,\ensuremath{\gamma})^{113}\mathrm{Cd}$ reaction. However, the ratio has not been measured in an energy region higher than the thermal energy. We have measured $\ensuremath{\gamma}$ rays following neutron capture reactions on $^{112}\mathrm{Cd}$ using two cluster high-purity germanium (HPGe) detectors in conjunction with a time-of-flight method at J-PARC. We have obtained the result that the relative $\ensuremath{\gamma}$-ray intensity ratio of the isomer is almost constant in an energy region of up to 5 keV. This result suggests that the $s$-process contribution to the solar abundance of $^{115}\mathrm{Sn}$ is minor. We have found that the ratio of a resonance at 737 eV is about 1.5 times higher than other ratios. This enhancement can be explained by a $p$-wave neutron capture. This result suggests measurements of decay $\ensuremath{\gamma}$ rays to isomers are effective to assign the spin and parity for neutron capture resonances.
Published: 2016
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10. Effect of age on bowel management in traumatic central cord syndrome

Author: Akihiro Tokuhiro, R Itoh, H Sugiyama, M Sumida, T Kajino, K Furusawa, A Ikeda, T Tominaga, T Kawazu, Fumihiro Tajima, O Yokoyama, H Tanaka, and R Uchida
Subjects: Adult, Male, Aging, medicine.medical_specialty, Activities of daily living, Bowel management, Japan, Internal medicine, Activities of Daily Living, Humans, Medicine, Neurogenic Bowel, In patient, Registries, Defecation, Spinal cord injury, Physical Therapy Modalities, Spinal Cord Injuries, Aged, Retrospective Studies, business.industry, General Medicine, Middle Aged, Central cord syndrome, medicine.disease, Treatment Outcome, Neurology, Multicenter study, Female, Bowel care, Neurology (clinical), medicine.symptom, business
Abstract: A retrospective multicenter study. To investigate the characteristics of bowel dysfunction in elderly people with traumatic central cord syndrome (TCCS). A total of 28 Rosai hospitals in Japan. The Rosai Hospital registry included 3006 persons with spinal cord injury during 1997–2007. The study subjects were 186 patients with TCCS (160 men, 26 women; mean age, 61.7±11.6 years, ±s.d.). Patients were divided according to age into the young group (
Published: 2011
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11. Effects of Shock Propagation on Neutrino Oscillation and $\nu $-induced Nucleosynthesis in Supernova

Author: Motohiko Kusakabe, Heamin Ko, Y. Pehlivan, B. Ekinci, T. Kajino, and Myung-Ki Cheoun
Subjects: Physics, Shock propagation, Supernova, Nucleosynthesis, General Physics and Astronomy, Astrophysics, Neutrino oscillation
Published: 2019
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12. NEUTRON CAPTURE CROSS SECTION TO113Cd ISOMER ANDs-PROCESS CONTRIBUTION TO RAREp-NUCLIDE115Sn

Author: Nobuyuki Iwamoto, Hideo Harada, T. Kajino, Satoshi Chiba, Takehito Hayakawa, T. Shizuma, N. Shinohara, and Yuichi Hatsukawa
Subjects: Nuclear reaction, Physics, Nuclear physics, Neutron capture, Isotope, Space and Planetary Science, Neutron cross section, Astronomy and Astrophysics, Neutron, Nuclide, Atomic physics, s-process, Neutron temperature
Abstract: A neutron capture cross section for the 112Cd(n, γ)113Cdm reaction has been measured with neutrons provided from a nuclear reactor in order to study the astrophysical origin of a rare p-process isotope 115Sn, which may be produced by a nucleosynthesis flow through 113Cdm in the s-process. We have obtained the thermal neutron capture cross section of 0.028 ± 0.009 [b] and the resonance integral of 1.1 ± 0.3 [b] using a cadmium difference method. The cross section ratio of the isomer to the ground state has been calculated as a function of the incident neutron energy, E, by using a statistical model. The calculated ratios are almost constant over a wide range of E < 100 keV. We have evaluated the s-process contribution to the solar abundance of 115Sn using the classical steady-flow model with various astrophysical parameters. This calculated result has shown that the production through 113Cdm may give minor contribution to 115Sn.
Published: 2009
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13. THE NEW DETECTIONS OF7Li/6Li ISOTOPIC RATIO IN THE INTERSTELLAR MEDIA

Author: Akito Tajitsu, Michael S. Bessell, T. Suzuki, Hiroyasu Ando, T. Kajino, Wako Aoki, Wataru Tanaka, K. Okita, Satoshi Honda, Michitoshi Yoshida, Kunio Noguchi, Etsuji Watanabe, Satoshi Kawanomoto, Bun'ei Sato, Kozo Sadakane, Hideyuki Izumiura, Masahide Takada-Hidai, and Eiji Kambe
Subjects: Physics, Stars, Line-of-sight, Stellar nucleosynthesis, Big Bang nucleosynthesis, Space and Planetary Science, Nucleosynthesis, Astronomy, Astronomy and Astrophysics, Cosmic ray, Natural abundance, Astrophysics, Disc
Abstract: We have determined the isotopic abundance ratio of 7Li/6Li in the interstellar media (ISMs) along lines of sight to HD169454 and HD250290 using the High-Dispersion Spectrograph on the Subaru Telescope. We also observed ζ Oph for comparison with previous data. The observed abundance ratios were 7Li/6Li = 8.1+3.6 –1.8 and 6.3+3.0 –1.7 for HD169454 and HD250290, respectively. These values are in reasonable agreement with those observed previously in the solar neighborhood ISMs within ±2σ error bars and are also consistent with our measurement of 7Li/6Li = 7.1+2.9 –1.6 for a cloud along the line of sight to ζ Oph. This is good evidence for homogeneous mixing and instantaneous recycling of the gas component in the Galactic disk. We also discuss several source compositions of 7Li, Galactic cosmic-ray interactions, stellar nucleosynthesis, and big bang nucleosynthesis.
Published: 2009
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14. A new measurement of the astrophysical 8Li(d, t)7Li reaction

Author: T. Hashimoto, H. Ishiyama, Y.X. Watanabe, Y. Hirayama, N. Imai, H. Miyatake, S.C. Jeong, M.-H. Tanaka, N. Yoshikawa, T. Nomura, S. Mitsuoka, K. Nishio, T.K. Sato, A. Osa, S. Ichikawa, M. Matsuda, H. Ikezoe, S.K. Das, Y. Mizoi, T. Fukuda, A. Sato, T. Shimoda, K. Otsuki, and T. Kajino
Subjects: Nuclear and High Energy Physics
Published: 2009
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15. Neutrino-induced reactions and neutrino scattering with nuclei in low and high neutrino energy

Author: Ghil-Seok Yang, Eunja Ha, T. Kajino, Kyungsik Kim, and Myung-Ki Cheoun
Subjects: Physics, Particle physics, Nuclear Theory, SHELL model, Nuclear structure, Neutrino scattering, Nuclear physics, MiniBooNE, High Energy Physics::Experiment, Born approximation, Neutrino, Nuclear Experiment, Neutrino oscillation, Energy (signal processing)
Abstract: We reviewed present status regarding theoretical approaches for neutrino-induced reactions and neutrino scattering. With a short introduction of relevant data, our recent calculations by distorted-wave Born approximation (DWBA) for quasielastic region are presented for MiniBooNE data. We also discussed that one step-process estimated by the DWBA is comparable to the two-step process, which has been usually used in the neutrino-nucleosynthesis. For much higher energy neutrino data, such as NOMAD data, elementary process approach was shown to be useful instead of using complicated nuclear models. But, in the low energy region, detailed nuclear structure model, such as QRPA and shell model, turn out to be inescapable to explain the reaction data.
Published: 2016
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16. JEM-EUSO: Meteor and nuclearite observations

Author: K. Mannheim, P. Reardon, T. Nonaka, Toshikazu Ebisuzaki, M. Kleifges, M. S. Briggs, Y. Tsunesada, P. Picozza, H. Salazar, A. Marini, F. Guarino, G. Siemieniec-Oziȩbło, M. Nagata, Dmitry V. Naumov, I. H. Park, R. Young, M. D. Rodríguez Frías, G. Distratis, Satoshi Wada, Hiroyuki Sagawa, M. Flamini, Y. Takizawa, C. Blaksley, Tomás Belenguer, Frederic Trillaud, Silvia Ferrarese, S. Ogio, J. Fujimoto, I. V. Yashin, T. Ogawa, J. Szabelski, M. I. Panasyuk, L. Wiencke, H. Sato, A. Guzman, D. Allard, M. E. Bertaina, E. Kuznetsov, F. Tajima, J. Błȩcki, J. N. Capdevielle, L. Santiago Crúz, H. Ohmori, H. Ikeda, I. Kreykenbohm, T. Batsch, N. Inoue, K. Higashide, J. Yang, D. Cline, Gali Garipov, Y. Mizumoto, L. Villaseñor, R. Bechini, C. Tenzer, P. Bobik, S. Biktemerova, Ke Fang, Y. Hachisu, R. Tsenov, M. Nagano Murakami, A. Haungs, M. Wille, H. Lim, M. C. Maccarone, Maxim Gonchar, M. Serra, E. G. Judd, T. Murakami, J. Karczmarczyk, H. J. Crawford, Angela V. Olinto, Fernando López, Andrea Santangelo, S. Blin-Bondil, C. Lachaud, V. Andreev, Ovidiu Vaduvescu, M. Lacombe, A. Kusenko, T. J. Weiler, P. Prat, S. Piraino, S. Dagoret-Campagne, A. Cellino, Y. Arai, S. Watanabe, D. Yonetoku, T. Wibig, Y. Miyazaki, G. Vankova, M. Ave Pernas, H. Prieto, C. De Donato, G. Giraudo, T. Kajino, J. N. Albert, P. Orleański, G. Masciantonio, Thomas Schanz, H. Schieler, M. Bonamente, A. J. de Castro, Claudio Cassardo, M. Fukushima, Z. Plebaniak, T. Tomida, M. Dupieux, J. Licandro, D. Maravilla, S. Sánchez, B. Mot, T. Paul, F. Dulucq, V. Connaughton, S. Ahmad, M. Unger, F. Ronga, I. Rodríguez, T. Peter, M. Chikawa, P. Vallania, Livio Conti, A. Zuccaro Marchi, A. A. Berlind, H. Takami, I. Kaneko, B. Szabelska, M. Sakata, M. Reyes, T. Napolitano, K. Mase, O. Tibolla, M. Weber, C. De Santis, L. Marcelli, A. Insolia, T. Patzak, Jörn Wilms, Alfonso Monaco, D. Monnier-Ragaigne, A. Segreto, Yukihiro Takahashi, Francesco Fenu, J. S. Kim, J. Hernández Carretero, V. S. Morozenko, O. A. Saprykin, D. Campana, Y. Itow, L. Anchordoqui, J. Lee, H. Rothkaehl, G. Sáez-Cano, E. Joven, J. F. Valdés-Galicia, L. del Peral, A. Franceschi, E. Parizot, B. Keilhauer, T. Shibata, M. Rybczyński, G. Osteria, M. J. Christl, P. Gorodetzky, C. Catalano, N. Blanc, D. Semikoz, S. Csorna, Hajime Yano, C. González Alvarado, Marco Casolino, T. Tajima, Claudio Fornaro, G. Cordero, F. Kajino, D. Ikeda, L. Valore, C. Moretto, H. H. Silva Lopez, M. D. Sabau, M. Putis, Francesco Isgrò, Roberto Bellotti, O. Martinez, G. Catalano, V. Scotti, K. Shinozaki, A. Sobey, K. Asano, J. Bayer, Lech Wiktor Piotrowski, H. W. Park, R. Nava, J. H. Adams, K. Belov, Y. Karadzhov, G. Prévôt, A. Ebersoldt, J. Watts, C. de la Taille, C. Pennypacker, B. Pastircak, K. Katahira, Y. Kawasaki, D. Supanitsky, N. Sakaki, R. Matev, B. A. Khrenov, H. Miyamoto, T. Pierog, Rossella Caruso, G. Castellinic, M. Sanz Palomino, S. Falk, A. Pollini, S. Yoshida, A. Neronov, Z. Włodarczyk, Sergei A. Sharakin, N. Tone, I. Fernández-Gómez, F. Cafagna, M. Ricci, P. von Ballmoos, D. Kolev, Pavel Klimov, J. A. Morales de los Ríos, L. Tkachev, S. Perez Cano, G. Gelmini, P. Galeotti, M. Yu. Zotov, M. Bogomilov, Y. Kurihara, Simona Toscano, A. Bruno, M. Karus, Susana Briz, S. Selmane, K. Kawai, Akinori Saito, K. Tsuno, T. Mernik, S. Nagataki, R. Cremonini, Y. Uchihori, J. Blümer, Domenico Finco, K. Słomińska, P. L. Biermann, A. Anzalone, T. Nakamura, Susumu Inoue, M. Di Martino, K. Nomoto, I. Rusinov, T. Tymieniecka, J. Sledd, G. Medina-Tanco, F. Sarazin, H. M. Shimizu, J. Geary, N. De Simone, Mitsuteru Sato, G. Modestino, M. Suzuki, A. Jung, K. Yoshida, P. Barrillon, T. Yamamoto, M. Roth, P. Baragatti, T. Shirahama, R. Engel, S. W. Kim, J. Watanabe, M. Takeda, N. Tajima, Y. Yamamoto, G. Roudil, B. Harlov, Carlo Vigorito, K. Kudela, A. Dell’Oro, H. Tokuno, T. Sugiyama, Adams, J. H., Ahmad, S., Albert, J. N., Allard, D., Anchordoqui, L., Andreev, V., Anzalone, A., Arai, Y., Asano, K., Ave Pernas, M., Baragatti, P., Barrillon, P., Batsch, T., Bayer, J., Bechini, R., Belenguer, T., Bellotti, R., Belov, K., Berlind, A. A., Bertaina, M., Biermann, P. L., Biktemerova, S., Blaksley, C., Blanc, N., Błȩcki, J., Blin Bondil, S., Blümer, J., Bobik, P., Bogomilov, M., Bonamente, M., Briggs, M. S., Briz, S., Bruno, A., Cafagna, F., Campana, D., Capdevielle, J. N., Caruso, R., Casolino, M., Cassardo, C., Castellinic, G., Catalano, C., Catalano, G., Cellino, A., Chikawa, M., Christl, M. J., Cline, D., Connaughton, V., Conti, L., Cordero, G., Crawford, H. J., Cremonini, R., Csorna, S., Dagoret Campagne, S., de Castro, A. J., De Donato, C., de la Taille, C., De Santis, C., del Peral, L., Dell’Oro, A., De Simone, N., Di Martino, M., Distratis, G., Dulucq, F., Dupieux, M., Ebersoldt, A., Ebisuzaki, T., Engel, R., Falk, S., Fang, K., Fenu, F., Fernández Gómez, I., Ferrarese, S., Finco, D., Flamini, M., Fornaro, C., Franceschi, A., Fujimoto, J., Fukushima, M., Galeotti, P., Garipov, G., Geary, J., Gelmini, G., Giraudo, G., Gonchar, M., González Alvarado, C., Gorodetzky, P., Guarino, Fausto, Guzmán, A., Hachisu, Y., Harlov, B., Haungs, A., Hernández Carretero, J., Higashide, K., Ikeda, D., Ikeda, H., Inoue, N., Inoue, S., Insolia, A., Isgro', Francesco, Itow, Y., Joven, E., Judd, E. G., Jung, A., Kajino, F., Kajino, T., Kaneko, I., Karadzhov, Y., Karczmarczyk, J., Karus, M., Katahira, K., Kawai, K., Kawasaki, Y., Keilhauer, B., Khrenov, B. A., Kim, J. S., Kim, S. W., Kleifges, M., Klimov, P. A., Kolev, D., Kreykenbohm, I., Kudela, K., Kurihara, Y., Kusenko, A., Kuznetsov, E., Lacombe, M., Lachaud, C., Lee, J., Licandro, J., Lim, H., López, F., Maccarone, M. C., Mannheim, K., Maravilla, D., Marcelli, L., Marini, A., Martinez, O., Masciantonio, G., Mase, K., Matev, R., Medina Tanco, G., Mernik, T., Miyamoto, H., Miyazaki, Y., Mizumoto, Y., Modestino, G., Monaco, A., Monnier Ragaigne, D., Morales de los Ríos, J. A., Moretto, C., Morozenko, V. S., Mot, B., Murakami, T., Murakami, M. Nagano, Nagata, M., Nagataki, S., Nakamura, T., Napolitano, T., Naumov, D., Nava, R., Neronov, A., Nomoto, K., Nonaka, T., Ogawa, T., Ogio, S., Ohmori, H., Olinto, A. V., Orleański, P., Osteria, G., Panasyuk, M. I., Parizot, E., Park, I. H., Park, H. W., Pastircak, B., Patzak, T., Paul, T., Pennypacker, C., Perez Cano, S., Peter, T., Picozza, P., Pierog, T., Piotrowski, L. W., Piraino, S., Plebaniak, Z., Pollini, A., Prat, P., Prévôt, G., Prieto, H., Putis, M., Reardon, P., Reyes, M., Ricci, M., Rodríguez, I., Rodríguez Frías, M. D., Ronga, F., Roth, M., Rothkaehl, H., Roudil, G., Rusinov, I., Rybczyński, M., Sabau, M. D., Sáez Cano, G., Sagawa, H., Saito, A., Sakaki, N., Sakata, M., Salazar, H., Sánchez, S., Santangelo, A., Santiago Crúz, L., Sanz Palomino, M., Saprykin, O., Sarazin, F., Sato, H., Sato, M., Schanz, T., Schieler, H., Scotti, V., Segreto, A., Selmane, S., Semikoz, D., Serra, M., Sharakin, S., Shibata, T., Shimizu, H. M., Shinozaki, K., Shirahama, T., Siemieniec Oziȩbło, G., Silva López, H. H., Sledd, J., Słomińska, K., Sobey, A., Sugiyama, T., Supanitsky, D., Suzuki, M., Szabelska, B., Szabelski, J., Tajima, F., Tajima, N., Tajima, T., Takahashi, Y., Takami, H., Takeda, M., Takizawa, Y., Tenzer, C., Tibolla, O., Tkachev, L., Tokuno, H., Tomida, T., Tone, N., Toscano, S., Trillaud, F., Tsenov, R., Tsunesada, Y., Tsuno, K., Tymieniecka, T., Uchihori, Y., Unger, M., Vaduvescu, O., Valdés Galicia, J. F., Vallania, P., Valore, Laura, Vankova, G., Vigorito, C., Villaseñor, L., von Ballmoos, P., Wada, S., Watanabe, J., Watanabe, S., Watts, J., Weber, M., Weiler, T. J., Wibig, T., Wiencke, L., Wille, M., Wilms, J., Włodarczyk, Z., Yamamoto, T., Yamamoto, Y., Yang, J., Yano, H., Yashin, I. V., Yonetoku, D., Yoshida, K., Yoshida, S., Young, R., Zotov, M. Y. u., and Zuccaro Marchi, A.
Subjects: Meteor (satellite), Solar System, JEM-EUSO, Meteors, Nuclearites, Space detectors, Astronomy and Astrophysics, Space and Planetary Science, Ciencias Físicas, Cosmic ray, Astrophysics, Primary (astronomy), Meteor, Space detector, Physics, Nuclearite, Meteoroid, Astronomy, Astronomy and Astrophysic, Speed of light (cellular automaton), Astronomía, Trajectory, Satellite, CIENCIAS NATURALES Y EXACTAS
Abstract: Meteor and fireball observations are key to the derivation of both the inventory and physical characterization of small solar system bodies orbiting in the vicinity of the Earth. For several decades, observation of these phenomena has only been possible via ground-based instruments. The proposed JEM-EUSO mission has the potential to become the first operational space-based platform to share this capability. In comparison to the observation of extremely energetic cosmic ray events, which is the primary objective of JEM-EUSO, meteor phenomena are very slow, since their typical speeds are of the order of a few tens of km/sec (whereas cosmic rays travel at light speed). The observing strategy developed to detect meteors may also be applied to the detection of nuclearites, which have higher velocities, a wider range of possible trajectories, but move well below the speed of light and can therefore be considered as slow events for JEM-EUSO. The possible detection of nuclearites greatly enhances the scientific rationale behind the JEM-EUSO mission. Fil: Bertaina, M.. Istituto Nazionale di Fisica Nucleare; Italia Fil: Cellino, A.. Istituto Nazionale di Fisica Nucleare; Italia Fil: Ronga, F.. Istituto Nazionale di Fisica Nucleare; Italia Fil: Adams, J. H.. University of Alabama in Huntsville; Estados Unidos Fil: Ahmad, S.. Ecole Polytechnique; Francia Fil: Albert, J. N.. Univ Paris-Sud; Francia Fil: Allard, D.. Univ Paris Diderot; Francia Fil: Anchordoqui, L.. University of Wisconsin-Milwaukee; Estados Unidos Fil: Andreev, V.. University of California; Estados Unidos Fil: Anzalone, A.. Istituto di Astrofisica Spaziale e Fisica Cosmica di Palermo; Italia Fil: Arai, Y.. High Energy Accelerator Research Organization (KEK); Japón Fil: Asano, K.. Tokyo Institute of Technology; Japón Fil: Ave Pernas, M.. Universidad de Alcalá; España Fil: Baragatti, P.. UTIU, Dipartimento di Ingegneria; Italia Fil: Barrillon, P.. Univ Paris-Sud; Francia Fil: Batsch, T.. National Centre for Nuclear Research; Polonia Fil: Bayer, J.. University of Tubingen; Alemania Fil: Bechini, R.. Istituto Nazionale di Fisica Nucleare; Italia Fil: Belenguer, T.. Instituto Nacional de Tecnica Aeroespacial (INTA; España Fil: Bellotti, R.. Istituto Nazionale di Fisica Nucleare; Italia Fil: Belov, K.. University of California; Estados Unidos Fil: Berlind, A. A.. Vanderbilt University; Estados Unidos Fil: Biermann, P. L.. Karlsruhe Institute of Technology (KIT); Alemania Fil: Biktemerova, S.. Joint Institute for Nuclear Research; Rusia Fil: Blaksley, C.. Univ Paris Diderot; Francia Fil: Blanc, N.. Swiss Center for Electronics and Microtechnology (CSEM; Suiza Fil: Blecki, J.. Space Research Centre of the Polish Academy of Sciences (CBK); Polonia Fil: Blin Bondil, S.. Ecole Polytechnique; Francia Fil: Supanitsky, Alberto Daniel. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina Fil: The JEM-EUSO Collaboration.
Published: 2015
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17. Maxwellian-averaged neutron-induced reaction cross sections and astrophysical reaction rates for kT=1keV to 1MeV calculated from microscopic neutron cross section library JENDL-3.3

Author: Satoshi Chiba, Tsuneo Nakagawa, T. Hayakawa, and T. Kajino
Subjects: Physics, Nuclear and High Energy Physics, Fission, Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, Nuclear data, Atomic and Molecular Physics, and Optics, Nuclear physics, Reaction rate, Neutron capture, Nucleosynthesis, Neutron cross section, Data library, Neutron, Nuclear Experiment
Abstract: Maxwellian-averaged cross sections and astrophysical reaction rates were calculated for neutron capture, fission, (n,p), (n,α), and some threshold reactions based on a microscopic neutron cross section data library, the Japanese Evaluated Nuclear Data Library Version 3.3 (JENDL-3.3). The calculation was made for temperatures (kT) from 1 keV to 1 MeV including the most important range in astrophysical nucleosynthesis. Results are presented in the tables and graphs. The Maxwellian-averaged neutron capture cross sections are compared with recommendations of other authors. Implications of the differences between the present data and previous ones to s-process nucleosynthesis are discussed.
Published: 2005
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18. Primordial Magnetic Field at the Photon Last Scattering Surface

Author: T. Kajino, Dai G. Yamazaki, and Kiyotomo Ichiki
Subjects: Physics, Nuclear and High Energy Physics, Photon, Condensed matter physics, Scattering, Cosmic microwave background, Astrophysics::Instrumentation and Methods for Astrophysics, Perturbation (astronomy), Astrophysics::Cosmology and Extragalactic Astrophysics, CMB cold spot, Magnetic field, Computational physics
Abstract: We construct the original method and numerical code to calculate the effects of magnetic field on CMB at the last scattering surface (LSS). In order to investigate the specific nature of the magnetic field effects on the CMB, we compare our calculated perturbation and the WMAP data.
Published: 2005
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19. Scaling relations for the supernova γ-process and the 176Lu nuclear cosmochronometer

Author: Toshiyuki Shizuma, T. Kajino, H. Umeda, Takehito Hayakawa, Nobuyuki Iwamoto, and K. Nomoto
Subjects: Physics, Nuclear and High Energy Physics, Solar System, Supernova, Nucleosynthesis, Astrophysics, Scaling, Universality (dynamical systems)
Abstract: Analyzing the solar system abundances, we find two universal scaling relations concerning the p- and s-nuclei. These scalings indicate that the γ -process nucleosynthesis in supernova (SN) explosions is the most probable origin of the p-nuclei. In addition the scalings lead to new concepts: a universality of the γ -process and a new nuclear cosmochronometer. Calculations of the γ -process are carried out for typical core-collapse SN explosion models. These confirm the observed scalings.
Published: 2005
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20. Spectroscopic Studies of Extremely Metal‐Poor Stars with the Subaru High Dispersion Spectrograph. II. Ther‐Process Elements, Including Thorium

Author: Timothy C. Beers, Masahide Takada-Hidai, Hideyuki Izumiura, Kozo Sadakane, Hiroyasu Ando, T. Kajino, Wako Aoki, and Satoshi Honda
Subjects: Physics, Solar System, Thorium, chemistry.chemical_element, Astronomy and Astrophysics, Astrophysics, Galaxy, Stars, chemistry, Space and Planetary Science, Abundance (ecology), Nucleosynthesis, Dispersion (optics), Astrophysics::Solar and Stellar Astrophysics, r-process, Astrophysics::Galaxy Astrophysics
Abstract: We present the abundance analyses for the neutron-capture elements, and discuss the observed abundance distributions in very metal-poor stars with excesses of r-process elements. As has been found by previous abundance studies, the star-to-star scatter in the abundances of neutron-capture elements are very large. The abundance patterns of the heavy neutron-capture elements (56 $\leq$ Z $\leq$ 70) in seven objects with moderate to large excesses of the neutron-capture elements are similar to that of the solar system r-process component. These results strongly suggest that the heavy neutron-capture elements in these objects are primarily synthesized by the r-process. On the other hand, the abundance ratios of the light neutron-capture elements (38 $\leq$ Z $\leq$ 46) exhibit a rather large dispersion. Our inspection of the correlation between Sr and Ba abundances in very metal-poor stars reveals that the dispersion of the Sr abundances clearly decreases with increasing Ba abundance. This results support previous suggestions that the light neutron-capture elements are likely to have been produced in different astrophysical sites from those associated with the production of the heavier ones. The Th/Eu abundance ratios (log(Th/Eu)) measured for the seven r-process-enhanced stars range from -0.10 to -0.59. Since these very metal-poor stars are believed to be formed in the early Galaxy, this result means that a small dispersion appears in the abundance ratios between Th and rare-earth elements, such as Eu, in very metal-poor stars. In order to apply the Th/Eu ratios to estimates of stellar ages, further understanding for the Th production by the r-process nucleosynthesis is required.
Published: 2004
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21. BBN and CMB constraints on universal lepton asymmetry, quintessential inflation, and brane world cosmology

Author: Yun Wang, T. Kajino, Kiyotomo Ichiki, M. Orito, M. Yahiro, and Grant J. Mathews
Subjects: Physics, Big Bang, Nuclear and High Energy Physics, media_common.quotation_subject, Astronomy, Non-standard cosmology, Lambda-CDM model, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Universe, Physical cosmology, De Sitter universe, Dark energy, Flatness problem, media_common
Abstract: Recent progress in cosmological deep survey has clarified progressively the origin and distribution of matter and evolution of Galaxies in the Universe. The origin of the light elements in the Big-Bang nucleosynthesis (BBN) has been a topic of broad interest for its significance in constraining the dark matter component in the Universe, and also in seeking for the cosmological model which best fits the recent data of cosmic microwave background (CMB) fluctuations.
Published: 2003
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22. Ground-based tests of JEM-EUSO components at the Telescope Array site, 'EUSO-TA'

Author: Hiroyuki Sagawa, A. Bruno, M. Rybczyński, Alfonso Monaco, G. Cordero, N. Tone, O. Martinez, C. Tenzer, L. Tkachev, Y. Uchihori, E. Kuznetsov, Ovidiu Vaduvescu, K. Nomoto, I. Kreykenbohm, Maxim Gonchar, R. Matev, T. Mernik, G. Catalano, M. Lacombe, Claudio Cassardo, A. Anzalone, T. Batsch, Roberto Bellotti, K. Mannheim, M. Serra, M. Yu. Zotov, Susana Briz, Satoshi Wada, T. Ogawa, C. De Santis, S. Blin-Bondil, Y. Kawasaki, R. Young, N. Inoue, K. Higashide, I. V. Yashin, T. Tajima, J. Bayer, T. Nonaka, Angela V. Olinto, Fernando López, Andrea Santangelo, A. Pollini, Pavel Klimov, M. Di Martino, S. Falk, V. Andreev, G. Giraudo, T. Kajino, T. Tymieniecka, J. Sledd, F. Tajima, R. Tsenov, J. Yang, D. Cline, A. Dell’Oro, I. Kaneko, B. Szabelska, G. Medina-Tanco, F. Guarino, F. Ronga, D. Yonetoku, T. Wibig, T. Napolitano, S. Nagataki, Tomás Belenguer, J. Blümer, S. Watanabe, P. Orleański, G. Masciantonio, Silvia Ferrarese, Mitsuteru Sato, H. Tokuno, H. Schieler, A. J. de Castro, M. Fukushima, Z. Plebaniak, M. J. Christl, R. Bechini, A. Insolia, J. Błȩcki, I. Rodríguez, H. Lim, M. C. Maccarone, B. Keilhauer, J. N. Capdevielle, L. Santiago Crúz, L. Wiencke, J. Watts, C. Pennypacker, C. González Alvarado, G. Osteria, M. I. Panasyuk, P. L. Biermann, H. Sato, M. Nagano Murakami, T. Sugiyama, L. Anchordoqui, I. H. Park, B. Pastircak, K. Asano, A. Guzman, S. Ogio, Francesco Isgrò, J. Fujimoto, B. A. Khrenov, H. Miyamoto, F. Kajino, I. Rusinov, Frederic Trillaud, G. Modestino, P. Reardon, M. Chikawa, L. Valore, P. Vallania, A. Jung, G. Siemieniec-Oziȩbło, A. Marini, H. Ikeda, G. Prévôt, H. J. Crawford, D. Supanitsky, S. Perez Cano, M. Suzuki, M. Ricci, K. Shinozaki, N. Tajima, B. Mot, M. Karus, L. Villaseñor, T. Pierog, M. D. Rodríguez Frías, M. Kleifges, C. Moretto, P. Bobik, S. Biktemerova, H. W. Park, T. Paul, F. Dulucq, R. Nava, J. H. Adams, P. Galeotti, Y. Yamamoto, N. Sakaki, K. Tsuno, M. Nagata, Yukihiro Takahashi, M. Bogomilov, K. Belov, S. Sánchez, A. Ebersoldt, E. G. Judd, Domenico Finco, Rossella Caruso, Dmitry V. Naumov, K. Yoshida, M. Weber, Y. Karadzhov, M. Sanz Palomino, D. Allard, P. Barrillon, M. E. Bertaina, E. Joven, G. Distratis, J. F. Valdés-Galicia, Marco Casolino, D. Monnier-Ragaigne, A. Segreto, T. Shibata, D. Maravilla, K. Kawai, Y. Kurihara, H. Prieto, S. Csorna, G. Castellinic, Akinori Saito, G. Sáez-Cano, H. Rothkaehl, C. Catalano, Y. Hachisu, Claudio Fornaro, Y. Arai, T. Tomida, Gali Garipov, N. Blanc, H. H. Silva Lopez, C. De Donato, M. D. Sabau, M. Putis, A. Sobey, G. Roudil, D. Semikoz, K. Słomińska, H. Takami, J. Licandro, M. Bonamente, T. Peter, T. Nakamura, P. Gorodetzky, J. S. Kim, V. S. Morozenko, B. Harlov, S. Selmane, Carlo Vigorito, Hajime Yano, K. Kudela, P. Prat, S. Piraino, S. Ahmad, M. Unger, G. Vankova, M. Sakata, A. Neronov, C. Lachaud, S. Dagoret-Campagne, R. Cremonini, M. Reyes, L. Marcelli, Z. Włodarczyk, D. Kolev, J. N. Albert, Thomas Schanz, T. Yamamoto, T. Patzak, I. Fernández-Gómez, F. Cafagna, P. von Ballmoos, G. Gelmini, P. Baragatti, Toshikazu Ebisuzaki, M. Ave Pernas, F. Sarazin, Livio Conti, Sergei A. Sharakin, A. Zuccaro Marchi, A. A. Berlind, Jörn Wilms, Simona Toscano, O. A. Saprykin, H. M. Shimizu, J. Geary, V. Scotti, Ke Fang, T. Murakami, N. De Simone, C. de la Taille, K. Katahira, A. Kusenko, J. Karczmarczyk, M. Dupieux, Y. Miyazaki, L. del Peral, A. Franceschi, E. Parizot, J. A. Morales de los Ríos, Susumu Inoue, M. S. Briggs, Y. Tsunesada, P. Picozza, H. Salazar, K. Mase, O. Tibolla, J. Hernández Carretero, D. Campana, J. Lee, H. Ohmori, M. Wille, A. Cellino, M. Roth, Lech Wiktor Piotrowski, T. Shirahama, S. Yoshida, R. Engel, S. W. Kim, J. Watanabe, M. Takeda, A. Haungs, T. J. Weiler, V. Connaughton, M. Flamini, Y. Takizawa, C. Blaksley, J. Szabelski, Y. Mizumoto, Francesco Fenu, Y. Itow, D. Ikeda, Adams, J. H., Ahmad, S., Albert, J. N., Allard, D., Anchordoqui, L., Andreev, V., Anzalone, A., Arai, Y., Asano, K., Ave Pernas, M., Baragatti, P., Barrillon, P., Batsch, T., Bayer, J., Bechini, R., Belenguer, T., Bellotti, R., Belov, K., Berlind, A. A., Bertaina, M., Biermann, P. L., Biktemerova, S., Blaksley, C., Blanc, N., Błȩcki, J., Blin Bondil, S., Blümer, J., Bobik, P., Bogomilov, M., Bonamente, M., Briggs, M. S., Briz, S., Bruno, A., Cafagna, F., Campana, D., Capdevielle, J. N., Caruso, R., Casolino, M., Cassardo, C., Castellinic, G., Catalano, C., Catalano, G., Cellino, A., Chikawa, M., Christl, M. J., Cline, D., Connaughton, V., Conti, L., Cordero, G., Crawford, H. J., Cremonini, R., Csorna, S., Dagoret Campagne, S., de Castro, A. J., De Donato, C., de la Taille, C., De Santis, C., del Peral, L., Dell’Oro, A., De Simone, N., Di Martino, M., Distratis, G., Dulucq, F., Dupieux, M., Ebersoldt, A., Ebisuzaki, T., Engel, R., Falk, S., Fang, K., Fenu, F., Fernández Gómez, I., Ferrarese, S., Finco, D., Flamini, M., Fornaro, C., Franceschi, A., Fujimoto, J., Fukushima, M., Galeotti, P., Garipov, G., Geary, J., Gelmini, G., Giraudo, G., Gonchar, M., González Alvarado, C., Gorodetzky, P., Guarino, Fausto, Guzmán, A., Hachisu, Y., Harlov, B., Haungs, A., Hernández Carretero, J., Higashide, K., Ikeda, D., Ikeda, H., Inoue, N., Inoue, S., Insolia, A., Isgro', Francesco, Itow, Y., Joven, E., Judd, E. G., Jung, A., Kajino, F., Kajino, T., Kaneko, I., Karadzhov, Y., Karczmarczyk, J., Karus, M., Katahira, K., Kawai, K., Kawasaki, Y., Keilhauer, B., Khrenov, B. A., Kim, J. S., Kim, S. W., Kleifges, M., Klimov, P. A., Kolev, D., Kreykenbohm, I., Kudela, K., Kurihara, Y., Kusenko, A., Kuznetsov, E., Lacombe, M., Lachaud, C., Lee, J., Licandro, J., Lim, H., López, F., Maccarone, M. C., Mannheim, K., Maravilla, D., Marcelli, L., Marini, A., Martinez, O., Masciantonio, G., Mase, K., Matev, R., Medina Tanco, G., Mernik, T., Miyamoto, H., Miyazaki, Y., Mizumoto, Y., Modestino, G., Monaco, A., Monnier Ragaigne, D., Morales de los Ríos, J. A., Moretto, C., Morozenko, V. S., Mot, B., Murakami, T., Murakami, M. Nagano, Nagata, M., Nagataki, S., Nakamura, T., Napolitano, T., Naumov, D., Nava, R., Neronov, A., Nomoto, K., Nonaka, T., Ogawa, T., Ogio, S., Ohmori, H., Olinto, A. V., Orleański, P., Osteria, G., Panasyuk, M. I., Parizot, E., Park, I. H., Park, H. W., Pastircak, B., Patzak, T., Paul, T., Pennypacker, C., Perez Cano, S., Peter, T., Picozza, P., Pierog, T., Piotrowski, L. W., Piraino, S., Plebaniak, Z., Pollini, A., Prat, P., Prévôt, G., Prieto, H., Putis, M., Reardon, P., Reyes, M., Ricci, M., Rodríguez, I., Rodríguez Frías, M. D., Ronga, F., Roth, M., Rothkaehl, H., Roudil, G., Rusinov, I., Rybczyński, M., Sabau, M. D., Sáez Cano, G., Sagawa, H., Saito, A., Sakaki, N., Sakata, M., Salazar, H., Sánchez, S., Santangelo, A., Santiago Crúz, L., Sanz Palomino, M., Saprykin, O., Sarazin, F., Sato, H., Sato, M., Schanz, T., Schieler, H., Scotti, V., Segreto, A., Selmane, S., Semikoz, D., Serra, M., Sharakin, S., Shibata, T., Shimizu, H. M., Shinozaki, K., Shirahama, T., Siemieniec Oziȩbło, G., Silva López, H. H., Sledd, J., Słomińska, K., Sobey, A., Sugiyama, T., Supanitsky, D., Suzuki, M., Szabelska, B., Szabelski, J., Tajima, F., Tajima, N., Tajima, T., Takahashi, Y., Takami, H., Takeda, M., Takizawa, Y., Tenzer, C., Tibolla, O., Tkachev, L., Tokuno, H., Tomida, T., Tone, N., Toscano, S., Trillaud, F., Tsenov, R., Tsunesada, Y., Tsuno, K., Tymieniecka, T., Uchihori, Y., Unger, M., Vaduvescu, O., Valdés Galicia, J. F., Vallania, P., Valore, Laura, Vankova, G., Vigorito, C., Villaseñor, L., von Ballmoos, P., Wada, S., Watanabe, J., Watanabe, S., Watts, J., Weber, M., Weiler, T. J., Wibig, T., Wiencke, L., Wille, M., Wilms, J., Włodarczyk, Z., Yamamoto, T., Yamamoto, Y., Yang, J., Yano, H., Yashin, I. V., Yonetoku, D., Yoshida, K., Yoshida, S., Young, R., Zotov, M. Y. u., and Zuccaro Marchi, A.
Subjects: Physics::Instrumentation and Detectors, Ciencias Físicas, Astrophysics::High Energy Astrophysical Phenomena, JEM-EUSO, Telescope array, EUSO-TA, Ultra high energy cosmic ray, law.invention, Telescope, Light source, Optics, law, Calibration, Electronics, Ultra high energy cosmic rays, Astronomy and Astrophysics, Space and Planetary Science, Physics, business.industry, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Astronomy and Astrophysic, Astronomía, Air shower, High Energy Physics::Experiment, business, CIENCIAS NATURALES Y EXACTAS
Abstract: We are conducting tests of optical and electronics components of JEM-EUSO at the Telescope Array site in Utah with a ground-based "EUSO-TA" detector. The tests will include an engineering validation of the detector, cross-calibration of EUSO-TA with the TA fluorescence detector and observations of air shower events. Also, the proximity of the TA?s Electron Light Source will allow for convenient use of this calibration device. In this paper, we report initial results obtained with the EUSO-TA telescope. Fil: Adams, J. H.. University of Alabama in Huntsville; Estados Unidos Fil: Ahmad, S.. Ecole Polytechnique; Francia Fil: Albert, J. N.. Univ Paris-Sud; Francia Fil: Allard, D.. Univ Paris Diderot; Francia Fil: Anchordoqui, L.. University of Wisconsin-Milwaukee; Estados Unidos Fil: Andreev, V.. University of California; Estados Unidos Fil: Anzalone, A.. INAF - Istituto di Astrofisica Spaziale e Fisica Cosmica di Palermo; Italia Fil: Arai, Y.. High Energy Accelerator Research Organization (KEK); Japón Fil: Asano, K.. Tokyo Institute of Technology; Japón Fil: Ave Pernas, M.. Universidad de Alcala (UAH); España Fil: Barrillon, P.. Univ Paris-Sud; Francia Fil: Batsch, T.. Lomonosov Moscow State University; Rusia Fil: Bayer, J.. University of Tubingen; Alemania Fil: Bechini, R.. Universita’ di Torino; Italia Fil: Belenguer, T.. Instituto Nacional de Tecnica Aeroespacial (INTA); España Fil: Bellotti, R.. Istituto Nazionale di Fisica Nucleare; Italia Fil: Belov, K.. University of California; Estados Unidos Fil: Berlind, A. A.. Vanderbilt University; Estados Unidos Fil: Bertaina, M.. Istituto Nazionale di Fisica Nucleare; Italia Fil: Biermann, P. L.. Karlsruhe Institute of Technology (KIT); Alemania Fil: Biktemerova, S.. Joint Institute for Nuclear Research; Rusia Fil: Blaksley, C.. Univ Paris Diderot; Francia Fil: Blanc, N.. Swiss Center for Electronics and Microtechnology (CSEM); Suiza Fil: Blacki, J.. Space Research Centre of the Polish Academy of Sciences (CBK); Polonia Fil: Blin Bondil, S.. Ecole Polytechnique; Francia Fil: Blumer, J.. Karlsruhe Institute of Technology (KIT); Alemania Fil: Bobik, P.. Institute of Experimental Physics; Eslovaquia Fil: Bogomilov, M.. University of Sofia; Bulgaria Fil: Bonamente, M.. University of Alabama in Huntsville; Estados Unidos Fil: Supanitsky, Alberto Daniel. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina Fil: Kawasaki, Yoshiya. RIKEN; Japón Fil: Piotrowski, Lech Wiktor. RIKEN; Japón Fil: Kawasaki, Yoshiya. Yoshiya; Japón Fil: Piotrowski, Lech Wiktor. Yoshiya; Japón Fil: The JEM-EUSO Collaboration ·.
Published: 2015

23. Ultra high energy photons and neutrinos with JEM-EUSO

Author: M. Weber, D. Monnier-Ragaigne, A. Segreto, H. Rothkaehl, C. Catalano, B. Mot, S. Watanabe, N. Blanc, M. Bonamente, S. Ahmad, M. Unger, D. Semikoz, M. Sakata, M. Reyes, L. Marcelli, Yukihiro Takahashi, I. Rodríguez, M. Serra, R. Bechini, M. Rybczyński, C. González Alvarado, T. Murakami, J. Karczmarczyk, F. Kajino, Marco Casolino, Claudio Fornaro, S. Ogio, L. Valore, I. Kaneko, B. Szabelska, G. Cordero, T. Shirahama, S. Blin-Bondil, G. Siemieniec-Oziȩbło, H. Ikeda, H. W. Park, L. Villaseñor, V. Andreev, Roberto Bellotti, M. J. Christl, T. Paul, F. Dulucq, H. Sato, D. Yonetoku, A. Guzman, O. Martinez, K. Mannheim, T. Wibig, A. Bruno, E. G. Judd, K. Mase, O. Tibolla, M. S. Briggs, Y. Tsunesada, R. Engel, F. Guarino, P. Picozza, H. Salazar, A. Marini, M. Chikawa, A. Jung, J. Watts, C. Pennypacker, P. Vallania, F. Tajima, D. Campana, J. Lee, T. Shibata, M. D. Sabau, Silvia Ferrarese, B. Pastircak, D. Allard, R. Matev, M. Sanz Palomino, A. Ebersoldt, M. E. Bertaina, K. Yoshida, M. Putis, A. Sobey, A. Neronov, A. Haungs, I. H. Park, D. Maravilla, J. Fujimoto, M. Karus, C. Tenzer, H. H. Silva Lopez, Gali Garipov, K. Shinozaki, R. Nava, J. H. Adams, Frederic Trillaud, Y. Uchihori, L. Wiencke, M. Nagata, Domenico Finco, N. Sakaki, P. Barrillon, Z. Włodarczyk, Y. Kurihara, Lech Wiktor Piotrowski, D. Kolev, G. Castellinic, Hiroyuki Sagawa, Rossella Caruso, Alfonso Monaco, S. Selmane, P. von Ballmoos, P. Prat, S. Piraino, G. Vankova, S. Sánchez, Dmitry V. Naumov, T. J. Weiler, S. Yoshida, E. Kuznetsov, H. Prieto, P. Bobik, S. Biktemerova, I. V. Yashin, R. Cremonini, C. Lachaud, S. Dagoret-Campagne, C. De Donato, S. W. Kim, G. Catalano, G. Gelmini, L. del Peral, A. Franceschi, E. Parizot, Maxim Gonchar, T. Nakamura, M. Nagano Murakami, Toshikazu Ebisuzaki, I. Kreykenbohm, T. Batsch, Y. Kawasaki, J. Watanabe, M. Takeda, G. Sáez-Cano, R. Tsenov, T. Patzak, Simona Toscano, S. Falk, J. S. Kim, T. Nonaka, V. S. Morozenko, J. N. Albert, K. Tsuno, J. A. Morales de los Ríos, V. Connaughton, Ke Fang, N. Inoue, Thomas Schanz, R. Young, M. D. Rodríguez Frías, Francesco Fenu, Tomás Belenguer, M. Roth, H. Ohmori, P. Reardon, Y. Itow, A. Kusenko, K. Higashide, G. Modestino, P. Orleański, Susumu Inoue, Livio Conti, P. Gorodetzky, A. Zuccaro Marchi, A. A. Berlind, G. Masciantonio, E. Joven, A. J. de Castro, M. Suzuki, Jörn Wilms, M. I. Panasyuk, J. Błȩcki, J. Yang, D. Cline, G. Giraudo, J. F. Valdés-Galicia, M. Kleifges, O. A. Saprykin, H. Lim, M. Dupieux, M. Fukushima, Z. Plebaniak, A. Insolia, M. C. Maccarone, T. Kajino, V. Scotti, S. Csorna, F. Ronga, M. Wille, F. Sarazin, T. Napolitano, D. Ikeda, C. de la Taille, B. Keilhauer, H. M. Shimizu, K. Katahira, K. Słomińska, J. Geary, L. Anchordoqui, Y. Karadzhov, G. Distratis, H. J. Crawford, N. De Simone, K. Asano, B. A. Khrenov, A. Cellino, G. Osteria, H. Miyamoto, J. N. Capdevielle, L. Santiago Crúz, Y. Hachisu, C. Moretto, Y. Arai, Francesco Isgrò, M. Ricci, M. Ave Pernas, M. Flamini, J. Licandro, G. Prévôt, K. Belov, T. Pierog, P. Galeotti, Sergei A. Sharakin, K. Nomoto, Y. Takizawa, C. Blaksley, J. Hernández Carretero, Mitsuteru Sato, J. Szabelski, Y. Mizumoto, T. Peter, T. Yamamoto, P. Baragatti, Y. Miyazaki, M. Di Martino, T. Tymieniecka, J. Sledd, G. Medina-Tanco, Ovidiu Vaduvescu, M. Lacombe, Claudio Cassardo, T. Mernik, A. Anzalone, C. De Santis, T. Tajima, Satoshi Wada, J. Bayer, T. Ogawa, A. Pollini, Pavel Klimov, Angela V. Olinto, Fernando López, Andrea Santangelo, H. Schieler, A. Dell’Oro, H. Tokuno, T. Sugiyama, P. L. Biermann, I. Rusinov, D. Supanitsky, S. Perez Cano, N. Tone, L. Tkachev, N. Tajima, Y. Yamamoto, M. Bogomilov, M. Yu. Zotov, Susana Briz, G. Roudil, B. Harlov, Carlo Vigorito, K. Kudela, S. Nagataki, J. Blümer, K. Kawai, Akinori Saito, T. Tomida, H. Takami, Hajime Yano, I. Fernández-Gómez, F. Cafagna, Adams, J. H., Ahmad, S., Albert, J. N., Allard, D., Anchordoqui, L., Andreev, V., Anzalone, A., Arai, Y., Asano, K., Ave Pernas, M., Baragatti, P., Barrillon, P., Batsch, T., Bayer, J., Bechini, R., Belenguer, T., Bellotti, R., Belov, K., Berlind, A. A., Bertaina, M., Biermann, P. L., Biktemerova, S., Blaksley, C., Blanc, N., Błȩcki, J., Blin Bondil, S., Blümer, J., Bobik, P., Bogomilov, M., Bonamente, M., Briggs, M. S., Briz, S., Bruno, A., Cafagna, F., Campana, D., Capdevielle, J. N., Caruso, R., Casolino, M., Cassardo, C., Castellinic, G., Catalano, C., Catalano, G., Cellino, A., Chikawa, M., Christl, M. J., Cline, D., Connaughton, V., Conti, L., Cordero, G., Crawford, H. J., Cremonini, R., Csorna, S., Dagoret Campagne, S., de Castro, A. J., De Donato, C., de la Taille, C., De Santis, C., del Peral, L., Dell’Oro, A., De Simone, N., Di Martino, M., Distratis, G., Dulucq, F., Dupieux, M., Ebersoldt, A., Ebisuzaki, T., Engel, R., Falk, S., Fang, K., Fenu, F., Fernández Gómez, I., Ferrarese, S., Finco, D., Flamini, M., Fornaro, C., Franceschi, A., Fujimoto, J., Fukushima, M., Galeotti, P., Garipov, G., Geary, J., Gelmini, G., Giraudo, G., Gonchar, M., González Alvarado, C., Gorodetzky, P., Guarino, Fausto, Guzmán, A., Hachisu, Y., Harlov, B., Haungs, A., Hernández Carretero, J., Higashide, K., Ikeda, D., Ikeda, H., Inoue, N., Inoue, S., Insolia, A., Isgro', Francesco, Itow, Y., Joven, E., Judd, E. G., Jung, A., Kajino, F., Kajino, T., Kaneko, I., Karadzhov, Y., Karczmarczyk, J., Karus, M., Katahira, K., Kawai, K., Kawasaki, Y., Keilhauer, B., Khrenov, B. A., Kim, J. S., Kim, S. W., Kleifges, M., Klimov, P. A., Kolev, D., Kreykenbohm, I., Kudela, K., Kurihara, Y., Kusenko, A., Kuznetsov, E., Lacombe, M., Lachaud, C., Lee, J., Licandro, J., Lim, H., López, F., Maccarone, M. C., Mannheim, K., Maravilla, D., Marcelli, L., Marini, A., Martinez, O., Masciantonio, G., Mase, K., Matev, R., Medina Tanco, G., Mernik, T., Miyamoto, H., Miyazaki, Y., Mizumoto, Y., Modestino, G., Monaco, A., Monnier Ragaigne, D., Morales de los Ríos, J. A., Moretto, C., Morozenko, V. S., Mot, B., Murakami, T., Murakami, M. Nagano, Nagata, M., Nagataki, S., Nakamura, T., Napolitano, T., Naumov, D., Nava, R., Neronov, A., Nomoto, K., Nonaka, T., Ogawa, T., Ogio, S., Ohmori, H., Olinto, A. V., Orleański, P., Osteria, G., Panasyuk, M. I., Parizot, E., Park, I. H., Park, H. W., Pastircak, B., Patzak, T., Paul, T., Pennypacker, C., Perez Cano, S., Peter, T., Picozza, P., Pierog, T., Piotrowski, L. W., Piraino, S., Plebaniak, Z., Pollini, A., Prat, P., Prévôt, G., Prieto, H., Putis, M., Reardon, P., Reyes, M., Ricci, M., Rodríguez, I., Rodríguez Frías, M. D., Ronga, F., Roth, M., Rothkaehl, H., Roudil, G., Rusinov, I., Rybczyński, M., Sabau, M. D., Sáez Cano, G., Sagawa, H., Saito, A., Sakaki, N., Sakata, M., Salazar, H., Sánchez, S., Santangelo, A., Santiago Crúz, L., Sanz Palomino, M., Saprykin, O., Sarazin, F., Sato, H., Sato, M., Schanz, T., Schieler, H., Scotti, V., Segreto, A., Selmane, S., Semikoz, D., Serra, M., Sharakin, S., Shibata, T., Shimizu, H. M., Shinozaki, K., Shirahama, T., Siemieniec Oziȩbło, G., Silva López, H. H., Sledd, J., Słomińska, K., Sobey, A., Sugiyama, T., Supanitsky, D., Suzuki, M., Szabelska, B., Szabelski, J., Tajima, F., Tajima, N., Tajima, T., Takahashi, Y., Takami, H., Takeda, M., Takizawa, Y., Tenzer, C., Tibolla, O., Tkachev, L., Tokuno, H., Tomida, T., Tone, N., Toscano, S., Trillaud, F., Tsenov, R., Tsunesada, Y., Tsuno, K., Tymieniecka, T., Uchihori, Y., Unger, M., Vaduvescu, O., Valdés Galicia, J. F., Vallania, P., Valore, Laura, Vankova, G., Vigorito, C., Villaseñor, L., von Ballmoos, P., Wada, S., Watanabe, J., Watanabe, S., Watts, J., Weber, M., Weiler, T. J., Wibig, T., Wiencke, L., Wille, M., Wilms, J., Włodarczyk, Z., Yamamoto, T., Yamamoto, Y., Yang, J., Yano, H., Yashin, I. V., Yonetoku, D., Yoshida, K., Yoshida, S., Young, R., Zotov, M. Y. u., and Zuccaro Marchi, A.
Subjects: space observation, Ciencias Físicas, Solar neutrino, Astrophysics::High Energy Astrophysical Phenomena, Cosmic ray, Astrophysics, Neutrino, Neutrinos, Photons, Space observation, Astronomy and Astrophysics, Space and Planetary Science, photons, Physics, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, neutrinos, Astronomy and Astrophysic, Solar neutrino problem, Photon, Astronomía, Cosmic neutrino background, Neutrino detector, Physics::Space Physics, Measurements of neutrino speed, High Energy Physics::Experiment, Neutrino astronomy, CIENCIAS NATURALES Y EXACTAS
Abstract: Ultra high energy photons and neutrinos are carriers of very importantastrophysical information. They may be produced at the sites of cosmic ray acceleration or during the propagation of the cosmic rays in the intergalactic medium. In contrast to charged cosmic rays, photon and neutrino arrival directions point to the production site because they are not deflected by the magnetic fields of the Galaxy or the intergalactic medium. In this work we study the characteristics of the longitudinal development of showers initiated by photons and neutrinos at the highestenergies. These studies are relevant for development of techniques for neutrino and photon identification by the JEM-EUSO telescope. In particular, we study the possibility of observing the multi-peak structure of very deep horizontal neutrino showers with JEM-EUSO. We also discuss the possibility to determine the flavor content of the incident neutrino flux by taking advantage of the different characteristics of thelongitudinal profiles generated by different type of neutrinos. This is of grate importance for the study of the fundamental properties of neutrinos at the highest energies. Regarding photons, we discuss the detectability of the cosmogenic component by JEM-EUSO and also estimate the expected upper limits on the photon fraction which can be obtained from the future JEM-EUSO data for the case in which there are no photons in the samples. Fil: Supanitsky, Alberto Daniel. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina Fil: Medina Tanco, G.. Universidad Nacional Autónoma de México; México Fil: Guzman, A.. University of Tubingen; Alemania Fil: Adams, J. H.. University of Alabama in Huntsville; Estados Unidos Fil: Ahmad, S.. Ecole Polytechnique; Francia Fil: Albert, J. N.. Univ Paris-Sud; Francia Fil: Allard, D.. Univ Paris Diderot; Francia Fil: Anchordoqui, L.. University of Wisconsin-Milwaukee; Estados Unidos Fil: Andreev, V.. University of California; Estados Unidos Fil: Anzalone, A.. Istituto di Astrofisica Spaziale e Fisica Cosmica di Palermo; Italia Fil: Arai, Y.. High Energy Accelerator Research Organization (KEK); Japón Fil: Asano, K.. Tokyo Institute of Technology; Japón Fil: Ave Pernas, M.. Universidad de Alcalá; España Fil: Baragatti, P.. UTIU, Dipartimento di Ingegneria; Italia Fil: Barrillon, P.. Univ Paris-Sud; Francia Fil: Batsch, T.. National Centre for Nuclear Research; Polonia Fil: Bayer, J.. University of Tubingen; Alemania Fil: Bechini, R.. Istituto Nazionale di Fisica Nucleare; Italia Fil: Belenguer, T.. Instituto Nacional de Tecnica Aeroespacial (INTA); España Fil: Bellotti, R.. Istituto Nazionale di Fisica Nucleare; Italia Fil: Belov, K.. University of California; Estados Unidos Fil: Berlind, A. A.. Vanderbilt University; Estados Unidos Fil: Bertaina, M.. Istituto Nazionale di Fisica Nucleare; Italia Fil: Biermann, P. L.. Karlsruhe Institute of Technology (KIT); Alemania Fil: Biktemerova, S.. Joint Institute for Nuclear Research; Rusia Fil: Blaksley, C.. Univ Paris Diderot; Francia Fil: Blanc, N.. Swiss Center for Electronics and Microtechnology (CSEM); Suiza Fil: Blecki, J.. Space Research Centre of the Polish Academy of Sciences (CBK); Polonia Fil: Blin-Bondil, S.. Ecole Polytechnique; Francia Fil: Blumer, J.. Karlsruhe Institute of Technology (KIT); Alemania Fil: The JEM-EUSO Collaboration.
Published: 2015

24. The JEM-EUSO instrument

Author: M. Weber, G. Osteria, K. Shinozaki, M. Roth, A. Bruno, D. Monnier-Ragaigne, A. Segreto, R. Nava, J. H. Adams, Satoshi Wada, P. Prat, N. Sakaki, T. Ogawa, H. Rothkaehl, S. Piraino, G. Vankova, C. Catalano, N. Blanc, D. Semikoz, C. De Santis, Angela V. Olinto, Fernando López, Andrea Santangelo, P. Reardon, M. Kleifges, G. Distratis, T. Patzak, Rossella Caruso, Francesco Isgrò, G. Prévôt, T. Pierog, Y. Uchihori, S. Selmane, M. Bonamente, R. Cremonini, S. Ahmad, M. Unger, G. Castellinic, P. von Ballmoos, I. H. Park, S. Watanabe, A. Jung, M. Sakata, M. Reyes, L. Marcelli, M. Ave Pernas, J. Fujimoto, K. Yoshida, P. Barrillon, T. Murakami, J. Karczmarczyk, K. Mase, O. Tibolla, D. Campana, J. Lee, Y. Hachisu, Y. Arai, I. Rodríguez, R. Bechini, H. Sato, A. Guzman, T. Tajima, J. Bayer, J. Licandro, H. Schieler, S. Perez Cano, T. Napolitano, P. Bobik, S. Biktemerova, T. Nonaka, Tomás Belenguer, M. S. Briggs, I. V. Yashin, Y. Tsunesada, P. Picozza, H. Salazar, J. Hernández Carretero, T. Peter, E. G. Judd, L. Anchordoqui, A. Pollini, Pavel Klimov, L. del Peral, A. Franceschi, E. Parizot, R. Tsenov, M. I. Panasyuk, T. Shirahama, J. Watts, C. González Alvarado, G. Roudil, S. Blin-Bondil, T. Tomida, Y. Miyazaki, H. Takami, P. Orleański, Roberto Bellotti, C. Pennypacker, B. Pastircak, M. Chikawa, V. Andreev, M. Bogomilov, H. Prieto, B. Harlov, C. Moretto, Carlo Vigorito, Sergei A. Sharakin, J. A. Morales de los Ríos, G. Masciantonio, A. J. de Castro, K. Kudela, H. Ohmori, D. Supanitsky, R. Engel, H. J. Crawford, P. Vallania, F. Kajino, D. Yonetoku, M. Di Martino, C. De Donato, M. Fukushima, Z. Plebaniak, A. Insolia, Hajime Yano, V. Scotti, M. Rybczyński, Susumu Inoue, T. Wibig, K. Belov, K. Nomoto, B. Keilhauer, L. Valore, C. de la Taille, M. Wille, J. N. Capdevielle, L. Santiago Crúz, T. Tymieniecka, G. Cordero, M. Karus, K. Kawai, E. Joven, A. Cellino, Akinori Saito, K. Katahira, P. Gorodetzky, J. Sledd, J. S. Kim, O. Martinez, Domenico Finco, M. D. Rodríguez Frías, N. Tajima, J. F. Valdés-Galicia, K. Asano, T. Yamamoto, G. Siemieniec-Oziȩbło, V. S. Morozenko, B. A. Khrenov, F. Sarazin, H. Miyamoto, G. Medina-Tanco, Ovidiu Vaduvescu, P. Baragatti, Y. Yamamoto, M. Lacombe, Claudio Cassardo, H. H. Silva Lopez, Hiroyuki Sagawa, Y. Karadzhov, S. Csorna, H. M. Shimizu, T. Paul, F. Dulucq, C. Tenzer, J. Geary, Mitsuteru Sato, S. W. Kim, A. Marini, R. Young, N. De Simone, Francesco Fenu, Y. Itow, R. Matev, A. Ebersoldt, Lech Wiktor Piotrowski, Toshikazu Ebisuzaki, H. W. Park, D. Allard, G. Modestino, M. Ricci, A. Dell’Oro, E. Kuznetsov, H. Tokuno, M. Suzuki, S. Yoshida, M. Sanz Palomino, M. E. Bertaina, J. Watanabe, P. Galeotti, Maxim Gonchar, T. Sugiyama, Y. Kurihara, M. Nagata, K. Tsuno, J. Błȩcki, T. Shibata, Alfonso Monaco, M. Takeda, Dmitry V. Naumov, H. Lim, M. C. Maccarone, T. Nakamura, G. Giraudo, Gali Garipov, T. Kajino, F. Tajima, F. Ronga, I. Kreykenbohm, T. Mernik, M. D. Sabau, T. Batsch, Ke Fang, M. Serra, D. Ikeda, N. Inoue, M. Putis, A. Sobey, N. Tone, I. Kaneko, B. Szabelska, G. Catalano, K. Higashide, C. Lachaud, M. J. Christl, I. Fernández-Gómez, F. Cafagna, S. Dagoret-Campagne, J. Yang, D. Cline, A. Haungs, L. Tkachev, M. Nagano Murakami, A. Kusenko, T. J. Weiler, J. N. Albert, M. Dupieux, Thomas Schanz, F. Guarino, S. Sánchez, Livio Conti, A. Anzalone, A. Zuccaro Marchi, A. A. Berlind, Jörn Wilms, Silvia Ferrarese, O. A. Saprykin, M. Yu. Zotov, V. Connaughton, Y. Kawasaki, Susana Briz, M. Flamini, Y. Takizawa, C. Blaksley, L. Wiencke, J. Szabelski, Y. Mizumoto, S. Nagataki, J. Blümer, G. Sáez-Cano, S. Falk, P. L. Biermann, I. Rusinov, K. Słomińska, A. Neronov, Z. Włodarczyk, D. Kolev, G. Gelmini, Simona Toscano, S. Ogio, H. Ikeda, L. Villaseñor, D. Maravilla, K. Mannheim, Frederic Trillaud, B. Mot, Yukihiro Takahashi, Marco Casolino, Claudio Fornaro, Adams, J. H., Ahmad, S., Albert, J. N., Allard, D., Anchordoqui, L., Andreev, V., Anzalone, A., Arai, Y., Asano, K., Ave Pernas, M., Baragatti, P., Barrillon, P., Batsch, T., Bayer, J., Bechini, R., Belenguer, T., Bellotti, R., Belov, K., Berlind, A. A., Bertaina, M., Biermann, P. L., Biktemerova, S., Blaksley, C., Blanc, N., Błȩcki, J., Blin Bondil, S., Blümer, J., Bobik, P., Bogomilov, M., Bonamente, M., Briggs, M. S., Briz, S., Bruno, A., Cafagna, F., Campana, D., Capdevielle, J. N., Caruso, R., Casolino, M., Cassardo, C., Castellinic, G., Catalano, C., Catalano, G., Cellino, A., Chikawa, M., Christl, M. J., Cline, D., Connaughton, V., Conti, L., Cordero, G., Crawford, H. J., Cremonini, R., Csorna, S., Dagoret Campagne, S., de Castro, A. J., De Donato, C., de la Taille, C., De Santis, C., del Peral, L., Dell’Oro, A., De Simone, N., Di Martino, M., Distratis, G., Dulucq, F., Dupieux, M., Ebersoldt, A., Ebisuzaki, T., Engel, R., Falk, S., Fang, K., Fenu, F., Fernández Gómez, I., Ferrarese, S., Finco, D., Flamini, M., Fornaro, C., Franceschi, A., Fujimoto, J., Fukushima, M., Galeotti, P., Garipov, G., Geary, J., Gelmini, G., Giraudo, G., Gonchar, M., González Alvarado, C., Gorodetzky, P., Guarino, Fausto, Guzmán, A., Hachisu, Y., Harlov, B., Haungs, A., Hernández Carretero, J., Higashide, K., Ikeda, D., Ikeda, H., Inoue, N., Inoue, S., Insolia, A., Isgro', Francesco, Itow, Y., Joven, E., Judd, E. G., Jung, A., Kajino, F., Kajino, T., Kaneko, I., Karadzhov, Y., Karczmarczyk, J., Karus, M., Katahira, K., Kawai, K., Kawasaki, Y., Keilhauer, B., Khrenov, B. A., Kim, J. S., Kim, S. W., Kleifges, M., Klimov, P. A., Kolev, D., Kreykenbohm, I., Kudela, K., Kurihara, Y., Kusenko, A., Kuznetsov, E., Lacombe, M., Lachaud, C., Lee, J., Licandro, J., Lim, H., López, F., Maccarone, M. C., Mannheim, K., Maravilla, D., Marcelli, L., Marini, A., Martinez, O., Masciantonio, G., Mase, K., Matev, R., Medina Tanco, G., Mernik, T., Miyamoto, H., Miyazaki, Y., Mizumoto, Y., Modestino, G., Monaco, A., Monnier Ragaigne, D., Morales de los Ríos, J. A., Moretto, C., Morozenko, V. S., Mot, B., Murakami, T., Murakami, M. Nagano, Nagata, M., Nagataki, S., Nakamura, T., Napolitano, T., Naumov, D., Nava, R., Neronov, A., Nomoto, K., Nonaka, T., Ogawa, T., Ogio, S., Ohmori, H., Olinto, A. V., Orleański, P., Osteria, G., Panasyuk, M. I., Parizot, E., Park, I. H., Park, H. W., Pastircak, B., Patzak, T., Paul, T., Pennypacker, C., Perez Cano, S., Peter, T., Picozza, P., Pierog, T., Piotrowski, L. W., Piraino, S., Plebaniak, Z., Pollini, A., Prat, P., Prévôt, G., Prieto, H., Putis, M., Reardon, P., Reyes, M., Ricci, M., Rodríguez, I., Rodríguez Frías, M. D., Ronga, F., Roth, M., Rothkaehl, H., Roudil, G., Rusinov, I., Rybczyński, M., Sabau, M. D., Sáez Cano, G., Sagawa, H., Saito, A., Sakaki, N., Sakata, M., Salazar, H., Sánchez, S., Santangelo, A., Santiago Crúz, L., Sanz Palomino, M., Saprykin, O., Sarazin, F., Sato, H., Sato, M., Schanz, T., Schieler, H., Scotti, V., Segreto, A., Selmane, S., Semikoz, D., Serra, M., Sharakin, S., Shibata, T., Shimizu, H. M., Shinozaki, K., Shirahama, T., Siemieniec Oziȩbło, G., Silva López, H. H., Sledd, J., Słomińska, K., Sobey, A., Sugiyama, T., Supanitsky, D., Suzuki, M., Szabelska, B., Szabelski, J., Tajima, F., Tajima, N., Tajima, T., Takahashi, Y., Takami, H., Takeda, M., Takizawa, Y., Tenzer, C., Tibolla, O., Tkachev, L., Tokuno, H., Tomida, T., Tone, N., Toscano, S., Trillaud, F., Tsenov, R., Tsunesada, Y., Tsuno, K., Tymieniecka, T., Uchihori, Y., Unger, M., Vaduvescu, O., Valdés Galicia, J. F., Vallania, P., Valore, Laura, Vankova, G., Vigorito, C., Villaseñor, L., von Ballmoos, P., Wada, S., Watanabe, J., Watanabe, S., Watts, J., Weber, M., Weiler, T. J., Wibig, T., Wiencke, L., Wille, M., Wilms, J., Włodarczyk, Z., Yamamoto, T., Yamamoto, Y., Yang, J., Yano, H., Yashin, I. V., Yonetoku, D., Yoshida, K., Yoshida, S., Young, R., Zotov, M. Y. u., and Zuccaro Marchi, A.
Subjects: Ciencias Físicas, Astrophysics::High Energy Astrophysical Phenomena, Cosmic ray, law.invention, Telescope, Optics, cosmic rays, law, International Space Station, Cosmic rays, Physics, International space station, UHECR, Astronomy and Astrophysics, Space and Planetary Science, business.industry, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Celestial sphere, Astronomy and Astrophysic, Astronomía, Refracting telescope, Focal surface, business, Event (particle physics), CIENCIAS NATURALES Y EXACTAS
Abstract: In this paper we describe the main characteristics of the JEM-EUSO instrument. The Extreme Universe Space Observatory on the Japanese Experiment Module (JEM-EUSO) of the International Space Station (ISS) will observe Ultra High-Energy Cosmic Rays (UHECR) from space. It will detect UV-light of Extensive Air Showers (EAS) produced by UHECRs traversing the Earth?s atmosphere. For each event, the detector will determine the energy, arrival direction and the type of the primary particle. The advantage of a space-borne detector resides in the largefield of view, using a target volume of about 10 12 tons of atmosphere, far greater than what is achievable from ground. Another advantage is a nearly uniform sampling of the whole celestial sphere. The corresponding increase in statistics will help to clarify the origin and sources of UHECRs and characterize the environment traversed during their production and propagation. JEM-EUSO is a 1.1 ton refractor telescope using an optics of 2.5 m diameter Fresnel lenses to focus the UV-light from EAS on a focal surface composed of about 5000 multi-anode photomultipliers, for a total of 3x10^5 channels. A multi-layer parallel architecture handles front-end acquisition, selecting and storing valid triggers. Each processing level filters the events with increasingly complex algorithms using FPGAs and DSPs to reject spurious events and reduce thedata rate to a value compatible with downlink constraints. Fil: Adams, J. H.. University of Alabama in Huntsville; Estados Unidos Fil: Ahmad, S.. Ecole Polytechnique; Francia Fil: Albert, J. N.. Univ Paris-Sud; Francia Fil: Allard, D.. Univ Paris Diderot; Francia Fil: Anchordoqui, L.. University of Wisconsin-Milwaukee; Estados Unidos Fil: Andreev, V.. University of California; Estados Unidos Fil: Anzalone, A.. Istituto di Astrofisica Spaziale e Fisica Cosmica di Palermo; Italia Fil: Arai, Y.. High Energy Accelerator Research Organization (KEK); Japón Fil: Asano, K.. Tokyo Institute of Technology; Japón Fil: Ave Pernas, M.. Universidad de Alcala; España Fil: Baragatti, P.. UTIU, Dipartimento di Ingegneria; Italia Fil: Barrillon, P.. Univ Paris-Sud; Francia Fil: Batsch, T.. National Centre for Nuclear Research; Polonia Fil: Bayer, J.. University of Tubingen; Alemania Fil: Bechini, R.. Istituto Nazionale di Fisica Nucleare; Italia Fil: Belenguer, T.. Instituto Nacional de Tecnica Aeroespacial (INTA); España Fil: Bellotti, R.. Istituto Nazionale di Fisica Nucleare; Italia Fil: Belov, K.. University of California; Estados Unidos Fil: Berlind, A. A.. Vanderbilt University; Estados Unidos Fil: Bertaina, M.. Istituto Nazionale di Fisica Nucleare; Italia Fil: Biermann, P. L.. Karlsruhe Institute of Technology (KIT); Alemania Fil: Biktemerova, S.. Joint Institute for Nuclear Research,; Rusia Fil: Blaksley, C.. Univ Paris Diderot; Francia Fil: Blanc, N.. Swiss Center for Electronics and Microtechnology (CSEM); Suiza Fil: Blecki, J.. Space Research Centre of the Polish Academy of Sciences (CBK); Polonia Fil: Blin,Bondil, S.. Ecole Polytechnique; Francia Fil: Blumer, J.. Karlsruhe Institute of Technology (KIT),; Alemania Fil: Bobik, P.. Institute of Experimental Physics; Eslovaquia Fil: Bogomilov, M.. University of Sofia; Bulgaria Fil: Supanitsky, Alberto Daniel. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina Fil: Casolino, Marco. RIKEN; Japón Fil: Kajino, Fumiyoshi. National Astronomical Observatory; Japón Fil: Piotrowski, Lech Wiktor. RIKEN; Japón Fil: The JEM-EUSO Collaboration.
Published: 2015

25. [ITAL][CLC]r[/CLC][/ITAL]-Process Nucleosynthesis in Neutrino-driven Winds from a Typical Neutron Star with [ITAL]M[/ITAL] = 1.4 [ITAL]M[/ITAL][TINF]⊙[/TINF]

Author: T. Kajino, Shoichi Yamada, Hideyuki Suzuki, K. Sumiyoshi, and M. Terasawa
Subjects: Physics, Nuclear reaction, Solar System, Astrophysics::High Energy Astrophysical Phenomena, Astronomy and Astrophysics, Astrophysics, Charged particle, Neutron star, Space and Planetary Science, Nucleosynthesis, Astrophysics::Solar and Stellar Astrophysics, r-process, Boundary value problem, Neutrino, Astrophysics::Galaxy Astrophysics
Abstract: We study the effects of the outer boundary conditions in neutrino-driven winds on r-process nucleosynthesis. We perform numerical simulations of hydrodynamics of neutrino-driven winds and nuclear reaction network calculations. As an outer boundary condition of hydrodynamic calculations, we set a pressure upon the outermost layer of the wind, which is approaching toward the shock wall. Varying the boundary pressure, we obtain various asymptotic thermal temperatures of expanding material in the neutrino-driven winds for resulting nucleosynthesis. We find that a slightly lower asymptotic temperature reduces the charged particle reaction rates and the resulting amount of seed elements and leads to a high neutron-to-seed ratio for a successful r-process abundance pattern, which is in reasonable agreement with the solar system r-process abundance pattern. As a result, the asymptotic temperature, slightly lower than those in previous studies of neutrino-driven winds, can lead to a successful r-process even for the typical proto-neutron star mass MNS ~ 1.4 M☉. We also explore the relation between the boundary condition and the neutron star mass, which is related to the progenitor mass, for a successful r-process.
Published: 2002
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26. The JEM-EUSO mission

Author: Japan: T. Ebisuzaki, H. Omori, K. Maekawa, Y. Hachisu, K. Katahira, M. Mizutani, Y. Kawasaki, Y. Takizawa, S. Wada, K. Kawai, H. Mase, K. Shinozaki, T. Ogawa, F. Kajino, M. Sakata, Y. Yamamoto, F. Sato, N. Ebizuka, T. Yamamoto, M. Nagano, Y. Miyazaki, T. Shibata, N. Sakaki, N. Inoue, Y. Uchibori, K. Nomoto, Y. Takahashi, M. Takeda, H. Shimizu, Y. Arai, Y. Kurihara, J. Fujimoto, S. Yoshida, K. Mase, Y. Mizumoto, J. Watanabe, K. Asano, T. Kajino, H. Ikeda, M. Suzuki, H. Yano, T. Murakami, D. Yonetoku, N. Sugiyama, Y. Itow, S. Nagataki, S. Inoue, A. Saito, S. Abe, M. Nagata, T. Tajima, M. Chikawa, F. Tajima, M. S.a.t.o. USA: J. H. Adams, S. Mitchell, M. J. Christl, J. Watts Jr, A. English, R. Young, D. Gregory, M. Bonamente, V. Connaughton, K. Pitalo, J. Hadaway, J. Geary, R. Lundquist, P. Reardon, T. Blackwell, H. Crawford, E. Judd, C. Pennypacker, V. Andreev, K. Arisaka, D. Cline, A. Berlind, T. Weiler, S. Czorna, R. Chipman, S. M.c.C.l.a.i.n. France: D. Allard, J. N. Capdevielle, J. Dolbeau, P. Gorodetzky, J. J. Jaeger, E. Parizot, T. Patzak, D. Semikoz, J. W.e.i.s.b.a.r.d. Germany: M. Teshima, T. Schweizer, A. Santangelo, E. Kendziorra, P. Biermann, K. Mannheim, J. W.i.l.m.s. Italy: E. Pace, M. Focardi, P. Spillantini, V. Bratina, A. Zuccaro, L. Gambicorti, A. Anzalone, O. Catalano, M. C. Maccarone, P. Scarsi, B. Sacco, G. La Rosa, G. D’Ali Staiti, D. Tegolo, M. Casolino, M. P. De Pascale, A. Morselli, P. Picozza, R. Sparvoli, P. Vallania, P. Galeotti, C. Vigorito, M. Bertaina, S. Russo, G. Osteria, D. Campana, M. Ambrosio, G. De Rosa, Mexico: G. Medina Tanco, J. C. D’Olivo, J. F. Valdés, H. Salazar, O. Martines, L. V.i.l.l.a.s.e.ñ.o.r. Republic of Korea: S. Nam, I. H. Park, J. Yang, J. H. Park, T. Chung, T. W. Kim, S. W. Kim, K. K. J.o.o. Russia: G. K. Garipov, B. A. Khrenov, P. A. Klimov, M. I. Panasyuk, I. V. Yashin, S. Biktemerova, D. Naumov, L. T.k.a.c.h.e.v. Switzerland: A. Maurissen, V. M.i.t.e.v. Spain: D. Rodriguez Frias, L. Peral, J. Gutierrez, R. Gomez H.e.r.r.e.r.o., ISGRO', FRANCESCO, GUARINO, FAUSTO, D'URSO, DOMENICO, ARAMO, CARLA, Japan: T., Ebisuzaki, H., Omori, K., Maekawa, Y., Hachisu, K., Katahira, M., Mizutani, Y., Kawasaki, Y., Takizawa, S., Wada, K., Kawai, H., Mase, K., Shinozaki, T., Ogawa, F., Kajino, M., Sakata, Y., Yamamoto, F., Sato, N., Ebizuka, T., Yamamoto, M., Nagano, Y., Miyazaki, T., Shibata, N., Sakaki, N., Inoue, Y., Uchibori, K., Nomoto, Y., Takahashi, M., Takeda, H., Shimizu, Y., Arai, Y., Kurihara, J., Fujimoto, S., Yoshida, K., Mase, Y., Mizumoto, J., Watanabe, K., Asano, T., Kajino, H., Ikeda, M., Suzuki, H., Yano, T., Murakami, D., Yonetoku, N., Sugiyama, Y., Itow, S., Nagataki, S., Inoue, A., Saito, S., Abe, M., Nagata, T., Tajima, M., Chikawa, F., Tajima, Adams, M. S. a. t. o. USA: J. H., S., Mitchell, M. J., Christl, J., Watts Jr, A., English, R., Young, D., Gregory, M., Bonamente, V., Connaughton, K., Pitalo, J., Hadaway, J., Geary, R., Lundquist, P., Reardon, T., Blackwell, H., Crawford, E., Judd, C., Pennypacker, V., Andreev, K., Arisaka, D., Cline, A., Berlind, T., Weiler, S., Czorna, R., Chipman, Allard, S. M. c. C. l. a. i. n. France: D., J. N., Capdevielle, J., Dolbeau, P., Gorodetzky, J. J., Jaeger, E., Parizot, T., Patzak, D., Semikoz, Teshima, J. W. e. i. s. b. a. r. d. Germany: M., T., Schweizer, A., Santangelo, E., Kendziorra, P., Biermann, K., Mannheim, Pace, J. W. i. l. m. s. Italy: E., M., Focardi, P., Spillantini, V., Bratina, A., Zuccaro, L., Gambicorti, A., Anzalone, O., Catalano, M. C., Maccarone, P., Scarsi, B., Sacco, G., La Rosa, G., D’Ali Staiti, D., Tegolo, M., Casolino, M. P., De Pascale, A., Morselli, P., Picozza, R., Sparvoli, P., Vallania, P., Galeotti, C., Vigorito, M., Bertaina, Isgro', Francesco, Guarino, Fausto, D'Urso, Domenico, S., Russo, G., Osteria, D., Campana, M., Ambrosio, Aramo, Carla, G., De Rosa, Mexico: G., Medina Tanco, J. C., D’Olivo, J. F., Valdé, H., Salazar, O., Martine, Nam, L. V. i. l. l. a. s. e. ñ. o. r. Republic of Korea: S., I. H., Park, J., Yang, J. H., Park, T., Chung, T. W., Kim, S. W., Kim, Garipov, K. K. J. o. o. Russia: G. K., B. A., Khrenov, P. A., Klimov, M. I., Panasyuk, I. V., Yashin, S., Biktemerova, D., Naumov, Maurissen, L. T. k. a. c. h. e. v. Switzerland: A., Rodriguez Frias, V. M. i. t. e. v. Spain: D., L., Peral, J., Gutierrez, and R. Gomez H. e. r. r. e. r., O.
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE), Physics, Photon, Milky Way, FOS: Physical sciences, General Physics and Astronomy, Astronomy, Cosmic ray, International Space Station, Charged particle, Magnetic field, Energy spectra, Air shower, High energy, Arrival direction, Extensive air showers, Space Science, Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM)
Abstract: JEM-EUSO is a space science mission to explore the extreme energies and physics of the Universe. Its instrument will watch the darkside of the earth and will detect UV photons emitted from the extensive air shower caused by an ultra-high energy cosmic ray (UHECR above 1018 eV), or an extremely high energy cosmic ray (EHECR) particle (e.g. above about 1020 eV). Such a high-rigidity particle as the latter arrives almost in a straight line from its origin through the magnetic fields of our Milky Way Galaxy and is expected to allow us to trace the source location by its arrival direction. This can open the door to new astronomy with charged particles. In its 5 years of operation including the tilted mode, Extreme Universe Space Observatory an Japanese Experiment Module (JEM-EUSO) will detect at least 1000 events with E > 7 × 1019 eV with the Greisen–Zatsepin–Ku’zmin (GZK) suppression spectrum. It can determine the energy spectrum and source locations of GZK to super-GZK regions with a statistical accuracy of several percent. JEM-EUSO is planned to be deployed by H2 transfer vehicle (HTV) and will be attached to the Japanese Experiment Module/Exposure Facility (JEM/EF) of International Space Station. JAXA has selected JEM-EUSO as one of the mission candidates of the second phase utilization of JEM/EF for launch in the early-to-mid 2010 s.
Published: 2009

27. β-Decay Half-Lives of 110 Neutron-Rich Nuclei across the N=82 Shell Gap: Implications for the Mechanism and Universality of the Astrophysical r Process

Author: G, Lorusso, S, Nishimura, Z Y, Xu, A, Jungclaus, Y, Shimizu, G S, Simpson, P-A, Söderström, H, Watanabe, F, Browne, P, Doornenbal, G, Gey, H S, Jung, B, Meyer, T, Sumikama, J, Taprogge, Zs, Vajta, J, Wu, H, Baba, G, Benzoni, K Y, Chae, F C L, Crespi, N, Fukuda, R, Gernhäuser, N, Inabe, T, Isobe, T, Kajino, D, Kameda, G D, Kim, Y-K, Kim, I, Kojouharov, F G, Kondev, T, Kubo, N, Kurz, Y K, Kwon, G J, Lane, Z, Li, A, Montaner-Pizá, K, Moschner, F, Naqvi, M, Niikura, H, Nishibata, A, Odahara, R, Orlandi, Z, Patel, Zs, Podolyák, H, Sakurai, H, Schaffner, P, Schury, S, Shibagaki, K, Steiger, H, Suzuki, H, Takeda, A, Wendt, A, Yagi, and K, Yoshinaga
Abstract: The β-decay half-lives of 110 neutron-rich isotopes of the elements from _{37}Rb to _{50}Sn were measured at the Radioactive Isotope Beam Factory. The 40 new half-lives follow robust systematics and highlight the persistence of shell effects. The new data have direct implications for r-process calculations and reinforce the notion that the second (A≈130) and the rare-earth-element (A≈160) abundance peaks may result from the freeze-out of an (n,γ)⇄(γ,n) equilibrium. In such an equilibrium, the new half-lives are important factors determining the abundance of rare-earth elements, and allow for a more reliable discussion of the r process universality. It is anticipated that universality may not extend to the elements Sn, Sb, I, and Cs, making the detection of these elements in metal-poor stars of the utmost importance to determine the exact conditions of individual r-process events.
Published: 2014

28. Primordial nucleosynthesis & neutrinos with mass and degeneracy

Author: T. Kajino, Grant J. Mathews, M. Orito, and Richard N. Boyd
Subjects: Cosmic neutrino background, Physics, Nuclear and High Energy Physics, Particle physics, Big Bang nucleosynthesis, Solar neutrino, Measurements of neutrino speed, Degeneracy (biology), Neutrino decoupling, Neutrino, Solar neutrino problem
Published: 2001
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29. Effect of strain rate change during uniaxial dynamic tensile tests on instability strain

Author: T. Nojima, Hidetoshi Kobayashi, M. Dairnaruya, and T. Kajino
Subjects: Acceleration, Materials science, Strain (chemistry), Ultimate tensile strength, Stress–strain curve, General Physics and Astronomy, Thermodynamics, Strain rate, Instability, Dynamic testing, Pulse (physics)
Abstract: In order to investigate the effect of strain rate change during dynamic tests on the stress-strain curves, an analytical study using the maximum load condition and a simple constitutive equation, σ = Be n e m (e: true strain rate, B, n, m: constants), was carried out. Three kinds of typical loading pulse, i.e. a usual constant incident pulse, an acceleration pulse and a deceleration pulse, were chosen. When the incident pulse is assumed to be σ 1 = = σ 0 exp(βt), these pulses correspond, respectively, to the cases with β = 0, β > 0 and β < 0. From the analysis, an instability strain or a strain at maximum load point, e * , was derived to be e * = n/ [1+m(1- (β/ e)(1+p)}]. It was found that the instability strain increases with the increase of acceleration parameter, β, of loading pulses. To check this analytical result, a series of dynamic tensile tests for 0.45%C steel using SHPB apparatus was performed with the three types of loading pulse. A tapered striker tube was used for acceleration and deceleration dynamic tests. The experimental result agreed well with that predicted by the analysis.
Published: 2000

30. New Determination Method of Primordial Li Abundance

Author: Hiroyasu Ando, T. Kajino, S. Kawanomoto, and T. Suzuki
Subjects: Physics, Interstellar medium, Big Bang nucleosynthesis, Abundance (ecology), media_common.quotation_subject, Natural abundance, Astrophysics, Universe, Lepton, media_common
Abstract: We discuss the primordial nucleosynthesis in lepton asymmetric Universe models. In order to better estimate the universal baryon-mass density parameter ωb, we try to remove the uncertainty from the theoretical prediction of primordial 7Li abundance. We propose a new method to determine the primordial 7Li by the use of isotopic abundance ratio 7Li/6Li in the interstellar medium which exhibits the minimum effects of the stellar processes.
Published: 2000
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31. Preface: Origin of Matter and Evolution of Galaxies 2013

Author: S. C. Jeong, N. Imai, H. Miyatake, and T. Kajino
Published: 2014
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32. The r-process in the neutrino-induced relativistic jet of a gamma-ray burst

Author: Ko Nakamura, Seiji Harikae, G. J. Mathews, and T. Kajino
Subjects: Physics, Nuclear physics, Jet (fluid), r-process, Neutrino, Gamma-ray burst
Published: 2013
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33. A surprise in 6 Li(p,γ) 7 Be reaction at low energies

Author: S. Z. Chen, R. J. deBoer, M. Kusakabe, S. Q. Hu, Michael Wiescher, S. B. Ma, T. Kajino, Guoqing Xiao, Xiaojuan Zhou, J. He, Y. H. Zhang, Xin Yu, S.W. Xu, W.L. Zhan, X.W. Ma, H. S. Xu, Linxiu Zhang, J. F. Hu, Na Zhang, C.E. Rolfs, and G. Lan
Subjects: Physics, Surprise, Crystallography, media_common.quotation_subject, media_common
Published: 2013
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34. Selective CO[sub 2] reduction conjugated with H[sub 2]O oxidation utilizing semiconductor/metal-complex hybrid photocatalysts

Author: K. Uemura, K. I. Yamanaka, T. Morikawa, T. Kajino, S. Sato, T. Arai, T. Motohiro, and T. M. Suzuki
Subjects: Materials science, business.industry, Energy conversion efficiency, Electron donor, Photochemistry, Catalysis, Artificial photosynthesis, Electron transfer, chemistry.chemical_compound, Chemical energy, Semiconductor, chemistry, Photocatalysis, business
Abstract: We developed a new hybrid photocatalyst for CO2 reduction, which is composed of a semiconductor and a metal complex. In the hybrid photocatalyst, ΔG between the position of conduction band minimum (ECBM) of the semiconductor and the CO2 reduction potential of the complex is an essential factor for realizing fast electron transfer from the conduction band of semiconductor to metal complex leading to high photocatalytic activity. On the basis of this concept, the hybrid photocatalyst InP/Ru-complex, which functions in aqueous media, was developed. The photoreduction of CO2 to formate using water as an electron donor and a proton source was successfully achieved as a Z-scheme system by functionally conjugating the InP/Ru-complex photocatalyst for CO2 reduction with a TiO2 photocatalyst for water oxidation. The conversion efficiency from solar energy to chemical energy was ca. 0.04%, which approaches that for photosynthesis in a plant. Because this system can be applied to many other inorganic semiconductors and metal-complex catalysts, the efficiency and reaction selectivity can be enhanced by optimization of the electron transfer process including the energy-band configurations, conjugation conformations, and catalyst structures. This electrical-bias-free reaction is a huge leap forward for future practical applications of artificial photosynthesis under solar irradiation to produce organic species.
Published: 2013
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35. RED-SUPERGIANT AND SUPERNOVA RATE PROBLEMS: IMPLICATION FOR THE RELIC SUPERNOVA NEUTRINO SPECTRUM

Author: Grant J. Mathews, Jun Hidaka, and T. Kajino
Subjects: Diffuse radiation, Physics, 010308 nuclear & particles physics, Astronomy, Astronomy and Astrophysics, Astrophysics, Type II supernova, Near-Earth supernova, 01 natural sciences, Cosmic neutrino background, Supernova, Space and Planetary Science, 0103 physical sciences, Red supergiant, Neutrino, 010303 astronomy & astrophysics
Published: 2016
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36. Structure of 24Al for the stellar reaction rate of 23Mg(p,γ)24Al

Author: Shigeru Kubono, Seigo Kato, and T. Kajino
Subjects: Physics, Nuclear reaction, Reaction rate, Nuclear and High Energy Physics, Angular distribution, Proton, Atomic physics, Nuclear Experiment, Excitation, Spin-½
Abstract: The nuclear levels of 24 Al were studied by the 24 Mg( 3 He,t) 24 Al reaction at 60 MeV. Several new states were identified including a level at 2.787 MeV just above the proton threshold in 24 Al, and considerable level shifts were observed for most levels around the threshold. The spin-parity assignments were also made for many states including the threshold states by the angular distribution measurement. This clarifies the spin-parity and the excitation energy of the critical levels assumed before for the stellar reaction rate calculation of 23 Mg(p,γ) 24 Al. A large increase of the reaction rate is predicted, based on the present experimental result, at the temperature region of T 9 = 0.2–0.8 which would be crucial for the break-out process of the NeNa cycle to the MgAl cycle. This result suggests that the onset temperature of 23 Mg(p,γ) 24 Al should be lowered roughly by 10%. Application of the ( 3 He,t) reaction at 60 MeV for spin assignment is also discussed.
Published: 1995
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37. Inhomogeneous big-bang model, revived, and evolution of the light elements in cosmic rays

Author: T. Kajino
Subjects: Physics, Nuclear reaction, Big Bang, Nuclear and High Energy Physics, Dark matter, Astronomy, Cosmic ray, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Baryon, Big Bang nucleosynthesis, Baryonic dark matter, Homogeneous, Nuclear Experiment, Astrophysics::Galaxy Astrophysics
Abstract: Inhomogeneous big-bang model for primordial nucleosynthesis allows higher universal mass density parameter of baryons than the standard homogeneous model does, which is marginally consistent with recent astronomical suggestion that some kind of dark matter is made of baryons. Observation of the enhanced heavy elements in metal weak dwarfs is proposed to test the inhomogeneous model. The studies of radioactive nuclear reactions help predict the theoretical abundances more precisely.
Published: 1995
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38. The r-process in neutrino-driven winds from a typical neutron star with M = 1.4M⊙

Author: T. Kajino, M. Terasawa, and Kohsuke Sumiyoshi
Subjects: Physics, Nuclear and High Energy Physics, Neutron star, X-ray burster, Nucleosynthesis, Astrophysics::High Energy Astrophysical Phenomena, X-ray binary, Astrophysics::Solar and Stellar Astrophysics, r-process, Astrophysics, Boundary value problem, Neutrino, Stellar evolution
Abstract: We study the effects of the outer boundary conditions in neutrino-driven winds on the r-process nucleosynthesis. Varying the boundary condition, we obtain various asymptotic thermal temperature of expanding material. As a result, we find that the slightly lower asymptotic temperature than those in the previous studies of the neutrino-driven winds can lead to a successful r-process even for the typical proto-neutron star mass MNS 1.4M⊙. We also discuss the relation between the boundary condition and neutron star mass, which is related to the progenitor mass, for the successful r-process
Published: 2003
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39. New detections of r-process elements in extremely metal-poor stars with subaru/HDS

Author: S. Honda, Wako Aoki, T. Kajino, and Hiroyasu Ando
Subjects: Physics, Nuclear and High Energy Physics, Astronomy, Context (language use), Astrophysics, Spectral line, Metal, Stars, Abundance (ecology), visual_art, visual_art.visual_art_medium, Astrophysics::Solar and Stellar Astrophysics, r-process, Astrophysics::Earth and Planetary Astrophysics, Astrophysics::Galaxy Astrophysics
Abstract: We have obtained high-resolution, high quality spectra of 22 very metal-poor stars with Subaru/HDS, in order to carry out detailed abundance studies of their neutron-capture elements. We have detected Th in seven stars in our sample. The abundance pattern of the heavy neutron-capture elements (56 ≤ Z ≤ 69) of these stars is similar to the r-process component in the solar-system. However, the Th abundances relative to other neutron-capture elements show a non-negligible departure from the abundance pattern of the solar-system r-process component. The meaning of this result in the context of studies of the r-process and cosmocronology are discussed.
Published: 2003
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40. Constraints on the nature of cosmological constant from big bang nucleosynthesis and CMB anisotropies

Author: Grant J. Mathews, T. Kajino, Kiyotomo Ichiki, M. Yahiro, and M. Orito
Subjects: Big Bang, Physics, Nuclear and High Energy Physics, media_common.quotation_subject, Astronomy, Lambda-CDM model, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Universe, De Sitter universe, Dark energy, Inflationary epoch, Flatness problem, Quintessence, media_common
Abstract: Numerous recent observations strongly suggest that the expansion of the universe is now accelerating due to the effect of some unknown form of “dark energy” with negative pressure. The most physically plausible candidate for the dark energy is the quintessence scalar field, which tracks the evolution of the dominant energy component in the universe and acts like a cosmological constant only after the onset of the matter dominated epoch. A generic feature of such fields is the possibility of having a significant energy density throughout the thermal history of the universe, which can affect the cosmic expansion and physical processes in the early universe. These models can therefore be effectively constrained by using the well established theories of primordial nucleosynthesis (BBN) and the cosmic microwave background (CMB) anisotropies in comparison to the latest observations. In the present work we analyze some popular forms for the quintessence field and show that primordial 4He and D abundances put one of the most stringent constraints on the field in the early universe while CMB anisotropies put constraints on its nature at later epochs. We find that the simplest quintessence models can be ruled out from current observations. We also deduce constraints on the epoch of matter creation at the end of quintessential inflation through the effects of gravitational waves on the CMB anisotropies.
Published: 2003
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41. First detection of 7Li/6Li-ratio in the interstellar medium beyond the solar-system, and its impact on primordial 7Li

Author: Hiroyasu Ando, Kunio Suzuki, T. Kajino, and S. Kawanomoto
Subjects: Physics, Interstellar medium, Nuclear and High Energy Physics, Solar System, Abundance (ecology), Astronomy, Natural abundance, Astrophysics, Plateau (mathematics)
Abstract: We determine primordial 7 Li abudance independently of a previous method based on the measurement of the Spite plateau by using isotopic abundance ratios of 7 Li/ 6 Li in the interstellar media. The inferred best fit constraints on the primordial 7 Li abundance is 7 Li/H≅ 2.5 × 10 −10 , and the conservative upper limit at the 95% confidence level turns out to be 7 Li/H −10 .
Published: 2003
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42. EVIDENCE FOR A PRIMORDIAL MAGNETIC FIELD FROM THE CMB POLARIZATION AND POWER SPECTRA

Author: Dai G. Yamazaki, Kiyotomo Ichiki, T. Kajino, and Grant J. Mathews
Subjects: Physics, Cosmic microwave background, Astronomy, Astrophysics, Polarization (waves), Spectral line, Magnetic field
Published: 2012
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43. SOME ALTERNATIVE UNIFIED VIEWS FOR DARK ENERGY AND DARK MATTER

Author: Xinghai Zhao, T. Kajino, Grant J. Mathews, N. Q. Lan, and K. Ichiki
Subjects: Physics, Particle physics, Hot dark matter, Friedmann equations, Dark matter, Scalar field dark matter, Lambda-CDM model, Astrophysics::Cosmology and Extragalactic Astrophysics, Cosmology, General Relativity and Quantum Cosmology, symbols.namesake, Theoretical physics, symbols, Dark energy, Dark fluid
Abstract: from a bulk dimension in brane-world cosmology; and 3) relativistic corrections to the Friedmann equation from the presence of local inhomogeneities. Constraints on and observational tests of each of these cosmologies are described.
Published: 2012
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44. Neutrino Capture on $^{13}$C

Author: T. Kajino, Toshio Suzuki, and A. B. Balantekin
Subjects: Polynomial (hyperelastic model), Physics, Nuclear and High Energy Physics, Particle physics, Neutral current, Nuclear Theory, 010308 nuclear & particles physics, FOS: Physical sciences, Scintillator, 01 natural sciences, Neutrino scattering, Nuclear physics, Nuclear Theory (nucl-th), 0103 physical sciences, Scintillation counter, Neutrino, 010306 general physics, Neutrino oscillation, Nuclear theory
Abstract: We present neutrino cross sections on $^{13}$C. The charged-current cross sections leading to various states in the daughter $^{13}N$ and the neutral-current cross sections leading to various states in the daughter $^{13}$C are given. We also provide simple polynomial fits to those cross sections for quick estimates of the reaction rates. We briefly discuss possible implications for the current and future scintillator-based experiments., Comment: 5 figures
Published: 2012
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45. Asymmetric Neutrino Reactions from Magnetized Proto-Neutron Stars in fully Relativisitc Framework including Hyperons

Author: T. Maruyama, N. Yasutake, T. Kajino, M.-K. Cheoun, C.-Y. Ryu, Paraskevi Demetriou, Rauno Julin, and Sotirios Harissopulos
Subjects: Physics, Nuclear physics, Neutron star, Particle physics, Scattering, Elementary particle, Fermion, Neutrino, Nuclear matter, Lepton, Magnetic field
Abstract: We calculate the neutrino scattering and absorption on the hot and dense neutron‐star matter with hyperons under the strong magnetic field using perturbative approach. We find that the absorption cross‐sections show the remarkable angular dependence: its strength is reduced in the direction parallel to the magnetic field and enhanced in the opposite direction. This variation becomes about 2.2 % when the magnetic field is about 2×1017 G.
Published: 2011
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46. Electron Capture Reactions and Beta Decays in Steller Environments

Author: T. Suzuki, H. Mao, M. Honma, T. Yoshida, T. Kajino, T. Otsuka, Paraskevi Demetriou, Rauno Julin, and Sotirios Harissopulos
Subjects: Nuclear physics, Physics, Baryon, Isotope, Nucleosynthesis, Electron capture, Nuclear Theory, Hadron, Nuclear structure, r-process, Atomic physics, Radioactive decay
Abstract: Electron capture reactions on Ni and Co isotopes are investigated by shell model calculations in steller environments. The capture rates depend sensitively on the distribution of the Gamow‐Teller (GT) strength. The capture rates obtained by using GXPF1J Hamiltonian for fp‐shell are found to be consistent with the rates obtained from experimental GT strength in 58Ni and 60Ni. Capture rates in Co isotopes, where there were large discrepancies among previous calculations, are also investigated. Beta decays of the N = 126 isotones are studied by shell model calculations taking into account both the GT and first‐forbidden (FF) transitions. The FF transitions are found to be important to reduce the half‐lives by twice to several times of those by the GT contributions only. Implications of the short half‐lives of the waiting point nuclei on the r‐process nucleosynthesis are discussed for various astrophysical conditions.
Published: 2011
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47. Relativistic simulations of supernovae and the r-process; a new relativistic EOS and nuclear reaction network

Author: M. Terasawa, Hiroshi Toki, T. Kajino, Hideyuki Suzuki, Kohsuke Sumiyoshi, Grant J. Mathews, and Shoichi Yamada
Subjects: Nuclear physics, Physics, Nuclear reaction, Nuclear and High Energy Physics, Supernova, r-process
Published: 2001
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48. Reanalysis of the (J=5) state at592keV inTa180and its role in theν-process nucleosynthesis ofTa180in supernovae

Author: Peter J. Mohr, Takehito Hayakawa, Shuntaro Chiba, Grant J. Mathews, and T. Kajino
Subjects: Physics, Nuclear physics, Massless particle, Nuclear and High Energy Physics, education.field_of_study, Nucleosynthesis, Population, Elementary particle, Fermion, Neutrino, education, Electron neutrino, Lepton
Abstract: We analyze the production and freeze-out of the isomer {sup 180}Ta{sup m} in the {nu}-process. We consider the influence of a possible low-lying intermediate (J=5) state at 592 keV using a transition width estimated from the measured half-life. This more realistic width is much smaller than the previous estimate. We find that the 592-keV state leads only to a small reduction of the residual isomer population ratio from the previous result; that is, considering this better estimate for the transition width, the isomer population ratio changes from R=0.39 to R=0.38, whereas previously it was estimated that this transition could reduce the ratio to R=0.18. This finding strengthens the evidence that {sup 138}La and {sup 180}Ta are coproduced by neutrino nucleosynthesis with an electron neutrino temperature of kT{approx_equal}4 MeV.
Published: 2010
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49. ChemInform Abstract: Bile Salt from Megamouth Shark. Part 1. The Structures of a New Bile Alcohol, 7-Deoxyscymnol, and Its New Sodium Sulfates

Author: H. Nakayasu, T. Kajino, Kuniro Tsuji, H. Miyamoto, Hitoshi Ishida, and Haruo Nukaya
Subjects: chemistry.chemical_classification, biology, Chemistry, Sodium, chemistry.chemical_element, Bile Alcohols, Salt (chemistry), Organic chemistry, General Medicine, Megamouth shark, biology.organism_classification
Published: 2010
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50. New estimate for the time-dependent thermal nucleosynthesis of 180Tam

Author: Grant J. Mathews, T. Kajino, Satoshi Chiba, and Takehito Hayakawa
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE), Physics, Nuclear and High Energy Physics, Nuclear Theory, FOS: Physical sciences, Elementary particle, Fermion, Nuclear Theory (nucl-th), Massless particle, Astrophysics - Solar and Stellar Astrophysics, Nucleosynthesis, Excited state, Production (computer science), Neutrino, Atomic physics, Astrophysics - High Energy Astrophysical Phenomena, Solar and Stellar Astrophysics (astro-ph.SR), Lepton
Abstract: We have made a new time-dependent calculation of the supernova production ratio of the long-lived isomeric state of $^{180}$Ta. Such a time-dependent solution is crucial for understanding the production and survival of this isotope. We include the explicit linking between the isomer and all known excited states.We have also calculated the properties of possible links to a conjectured excited state that might decrease the final isomer residual ratio. We find that the explicit time evolution of the synthesis of $^{180}$Ta using the available nuclear data avoids the overproduction relative to $^{138}$La for a $\nu$-process neutrino temperature of 4 MeV., Comment: Published in Phys. Rev. C, 13 pages, 4 figures
Published: 2010

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