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15 results on '"Tanaka, Yoshiki"'

1. Isomeric Lifetime Measurement in the Neutron-rich 189Ta

Author

Alhomaidhi Sultan, Sahin Elif, Werner Volker, Jolie Jan, Regan Patrick, Pietralla Norbert, Gerl Jürgen, Górska Magdalena, Benzoni Giovanna, Mistry Andrew K., Hubbard Nicolas, Aggez Guler, Albers Helena M., Arici Tugba, Armstrong Michael, Banerjee Akashrup, Das Biswarup, Davinson Thomas, Hall Oscar, Kojouharov Ivan, Koseoglou Pavlos, Mikolajczuk Michal, Podolyák Zsolt, Polettini Marta, Rudigier Matthias, Schaffner Henning, Wollersheim Hans-Jürgen, Yaneva Aleksandrina, Boutachkov Plamen, Dickel Timo, Haettner Emma, Heggen Henning, Hornung Christine, Knöbel Ronja, Kostyleva Daria, Kurz Nikolaus, Kuzminchuk Natalia, Mukha Ivan, Pietri Stephane, Plaß Wolfgang, Scheidenberger Christoph, Tanaka Yoshiki, Weick Helmut, Ahmed Usama, Aktas Özge, Algora Alejandro, Appleton Corrigan, Blazhev Andrey, Bruce Alison, Cederwall Bo, Chishti Muhammad M. R., Cortes Martha L., Crespi Fabio, Dobon Jose J., Doncel Maria, Ertoprak Aysegül, Esmaylzadeh Arwin, Expósito Marcos L., Fraile Luis M., García Jaime B., Gottardo Andrea, Ha Jeongsu, Jazrawi Shaheen, John Philipp R., Jones Calum, Karayonchev Vasil, Kern Ralph, Knafla Lukas, Kosir Gregor, Lozeva Radomira, Mengoni Daniele, Mertzimekis Theo J., Million Bénédicte, Morales Anabel, Murias Javier R., Orrigo Sonja E. A., Pellumaj Julgen, Pelonis Stefanos, Petrović Jana, Pigliapoco Sara, Quintana Begoña, Recchia Francesco, Rezynkina Kseniia, Sexton Lewis, Singh Nara, Söderström Pär-Anders, Sood Arshiya, Vasileiou Polytimos, Vesic Jelena, Wiederhold Johannes, zhang guangxin, Zidarova Radostina, and Zyriliou Aikaterini

Subjects
Physics, QC1-999
Abstract

Isomeric states of the neutron-rich isotope 18973Ta116 were populated via fragmentation of a primary beam of 208Pb ions at 1 GeV/u impinging on a 9Be target at GSI, Darmstadt, Germany. The isotopes of interest were separated, identified and delivered to the DESPEC setup. Two isomers were deduced in 189Ta116 and their lifetimes were measured based on the γ-ray time distributions.

Published
2023
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2. Unique approach for precise determination of binding energies of hypernuclei with nuclear emulsion and machine learning

Author

Nakagawa Manami, Kasagi Ayumi, Liu Enqiang, Ekawa Hiroyuki, Yoshida Junya, Dou Wenbo, He Yan, Muneem Abdul, Nakazawa Kazuma, Rappold Christophe, Saito Nami, Saito Takehiko R., Sugimoto Shohei, Taki Masato, Tanaka Yoshiki K., Wang He, Gao Yiming, Yanai Ayari, and Yoshimoto Masahiro

Subjects
Physics, QC1-999
Abstract

Hypertriton is the lightest hypernucleus and a benchmark in hypernuclear physics. However, it has recently been suggested that its lifetime and binding energy values may differ from the established values. To solve this puzzle, it is necessary to measure both values with a higher precision. For the precise measurement of the binding energy, we are aiming at developing a novel technique to measure the hypertriton binding energy with unprecedented accuracy by combining nuclear emulsion data and machine learning techniques. The analysis will be based on the J-PARC E07 nuclear emulsion data. Furthermore, a machine-learning model is being developed to identify other single and double-strangeness hypernuclei.

Published
2022
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3. Measurement of proton-distribution radii of neutron-rich nitrogen isotopes

Author

Bagchi Soumya, Kanungo Rituparna, Horiuchi Wataru, Hagen Gaute, Morris Titus D., Stroberg Steven Ragnar, Suzuki Toshio, Ameil Frederic, Atkinson Joel, Ayyad Yassid, Cortina-Gil Dolores, Dillmann Iris, Estradé Alfredo, Evdokimov Alexey, Farinon Fabio, Geissel Hans, Guastalla Giulia, Janik Rudolf, Kaur Satbir, Knöbel Ronja, Kurcewicz Jan, Litvinov Yury, Marta Michele, Mostazo Magdalena, Mukha Ivan, Nociforo Chiara, Ong Hooi Jin, Pietri Stephane, Prochazka Andrej, Scheidenberger Christoph, Sitar Branislav, Strmen Peter, Takechi Maya, Tanaka Junki, Tanaka Yoshiki, Tanihata Isao, Terashima Satoru, Vargas Jossitt, Weick Helmut, and Winfield John Stuart

Subjects
Physics, QC1-999
Abstract

Measurement of root-mean-square radii of proton distributions of 17–22N from charge-changing cross section shows the emergence of thick neutron skin towards the neutron-drip line. Signature of N = 14 shell gap has been found in nitrogen isotopes along with the emergence of neutron halo in 22N. The measured radii are in good agreement with the shell model calculations.

Published
2019
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4. Search for η′ mesic nuclei by missing-mass spectroscopy of the 12C(p,d) reaction

Author

Tanaka Yoshiki K., Ayyad Yassid, Benlliure Jose, Brinkmann Kai-Thomas, Friedrich Stefan, Fujioka Hiroyuki, Geissel Hans, Gellanki Jnaneswari, Guo Chenlei, Gutz Eric, Haettner Emma, Harakeh Muhsin N., Hayano Ryugo S., Higashi Yuko, Hirenzaki Satoru, Hornung Christine, Igarashi Yoichi, Ikeno Natsumi, Itahashi Kenta, Iwasaki Masahiko, Jido Daisuke, Kalantar-Nayestanaki Nasser, Kanungo Rituparna, Knoebel Ronja, Kurz Nikolaus, Metag Volker, Mukha Ivan, Nagae Tomofumi, Nagahiro Hideko, Nanova Mariana, Nishi Takahiro, Ong Hooi Jin, Pietri Stephane, Prochazka Andrej, Rappold Christophe, Reiter Moritz P., Rodríguez Sánchez Jose Luis, Scheidenberger Christoph, Simon Haik, Sitar Branislav, Strmen Peter, Sun Baohua, Suzuki Ken, Szarka Imrich, Takechi Maya, Tanihata Isao, Terashima Satoru, Watanabe Yuni N., Weick Helmut, Widmann Eberhard, Winfield John S., Xu Xiaodong, Yamakami Hiroki, and Zhao Jianwei

Subjects
Physics, QC1-999
Abstract

We performed a missing-mass spectroscopy experiment of the 12C(p, d) reaction at 2.5 GeV proton energy in order to search for η′ mesic nuclei. An excitation-energy spectrum of 11C was obtained around the η′ production threshold. As no significant peak structure was observed in the spectrum, upper limits of the formation cross section of η′ mesic nuclei have been determined. Preliminary results of the experiment as well as future prospects are given.

Published
2016
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5. Precision spectroscopy of pionic atoms and chiral symmetry in nuclei

Author

Itahashi Kenta, Ahn DeukSoon, Berg Georg P.A., Dozono Masanori, Etoh Daijiro, Fujioka Hiroyuki, Fukuda Naoki, Fukunishi Nobuhisa, Geissel Hans, Haettner Emma, Hashimoto Tadashi, Hayano Ryugo S., Hirenzaki Satoru, Horii Hiroshi, Ikeno Natsumi, Inabe Naoto, Iwasaki Masahiko, Kameda Daisuke, Kawase Shouichiro, Kisamori Keiichi, Kiyokawa Yu, Kubo Toshiyuki, Kusaka Kensuke, Matsushita Masafumi, Michimasa Shin’ichiro, Mishima Go, Miya Hiroyuki, Murai Daichi, Nagahiro Hideko, Nishi Takahiro, Ota Shinsuke, Sakamoto Naruhiko, Sekiguchi Kimiko, Suzuki Hiroshi, Suzuki Ken, Takaki Motonobu, Takeda Hiroyuki, Tanaka Yoshiki K., Uesaka Tomohiro, Wada Yasumori, Watanabe Yuni N., Weick Helmut, Yamakami Hiroki, Yanagisawa Yoshiyuki, and Yoshida Koichi

Subjects
Physics, QC1-999
Abstract

We conduct an experimental project to make spectroscopy of deeply bound pionic atoms systematically over wide range of nuclei. We aim at studying the strong interaction in the low energy region, which has close connection to spontaneous chiral symmetry breaking and its partial restoration in nuclear matter. First experimental results show improved spectral resolution and much better statistical sensitivity than previous experiments. Present status of the experiment is reported.

Published
2016
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6. Spectroscopy of η′ Mesic Nuclei via Semi-Exclusive Measurement at FAIR

Author

Fujioka Hiroyuki, Brinkmann Kai-Thomas, Friedrich Stefan, Geissel Hans, Hayano Ryugo S., Hirenzaki Satoru, Itahashi Kenta, Itoh Satoshi, Jido Daisuke, Metag Volker, Nagahiro Hideko, Nanova Mariana, Nishi Takahiro, Okochi Kota, Outa Haruhiko, Suzuki Ken, Suzuki Takatoshi, Tanaka Yoshiki K., Watanabe Yuni N., and Weick Helmut

Subjects
Physics, QC1-999
Abstract

In order to investigate a possible mass reduction of an η′ meson at finite density, a series of missing-mass spectroscopy experiments of η′-nucleus bound states with the 12C(p,d) reaction is planned at GSI and FAIR. A semi-exclusive measurement with the tagging of protons from η′ two-body absorption (η′NN → NN) will be a key feature in an experiment with Super-FRS at FAIR.

Published
2014
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7. Missing Mass Spectroscopy of η′ Mesic Nuclei with the (p,d) Reaction at GSI

Author

Tanaka Yoshiki K., Brinkmann Kai-Thomas, Friedrich Stefan, Fujioka Hiroyuki, Geissel Hans, Hayano Ryugo S., Hirenzaki Satoru, Itahashi Kenta, Itoh Satoshi, Jido Daisuke, Metag Volker, Nagahiro Hideko, Nanova Mariana, Nishi Takahiro, Okochi Kota, Outa Haruhiko, Suzuki Ken, Suzuki Takatoshi, Watanabe Yuni N., and Weick Helmut

Subjects
Physics, QC1-999
Abstract

We plan a missing-mass spectroscopy experiment of η′ mesic nuclei with the 12C(p,d)η′⊗11C reaction to study in-medium properties of the η′ meson. In nuclear medium, due to restoration of chiral symmetry, the mass of the η′ meson may be reduced, and η′ bound states in a nucleus may exist. The experiment will be started at GSI with a 2.5 GeV proton beam using FRS as a spectrometer and will be continued at Super-FRS at FAIR. The plan of the experiment and development of a Cherenkov detector and an optics mode are described.

Published
2014
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8. The first precision measurement of deeply bound pionic states in 121Sn

Author

Nishi Takahiro, Berg Georg P. A., Dozono Masanori, Fujioka Hiroyuki, Fukuda Naoki, Furuno Tatsuya, Geissel Hans, Hayano Ryugo S., Inabe Naoto, Itahashi Kenta, Itoh Satoshi, Kameda Daisuke, Kubo Toshiyuki, Matsubara Hiroaki, Michimasa Shin’ichiro, Miki Kenjiro, Miya Hiroyuki, Murakami Yohei, Nakamura Masaki, Nakatsuka Noritsugu, Noji Shumpei, Okochi Kota, Ota Shinsuke, Suzuki Hiroshi, Suzuki Ken, Takaki Motonobu, Takeda Hiroyuki, Tanaka Yoshiki K., Todoroki Koichi, Tsukada Kyo, Uesaka Tomohiro, Watanabe Yuni N., Weick Helmut, Yamada Hiroyuki, and Yoshida Koichi

Subjects
Physics, QC1-999
Abstract

We performed a precision missing-mass spectroscopy experiment of the deeply bound pionic states in a 121Sn atom using the (d,3He) reaction near the π− emission threshold. The experiment serves as a pilot experiment for our new ‘pionic atom factory project’ at RIBF, which aims at precision spectroscopy of the energy spectrum of the pionic atom of isotopes and isotones. The result of the pilot experiment demonstrated the potentiality of BigRIPS and of the RIBF facilities for the project. The current status of the analysis is reported.

Published
2014
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9. Spectroscopy of η′-nucleus bound states at GSI-SIS

Author

Outa Haruhiko, Okochi Kota, Nishi Takahiro, Nanova Mariana, Nagahiro Hideko, Metag Volker, Jido Daisuke, Itoh Satoshi, Hirenzaki Satoru, Hayano Ryugo S., Geissel Hans, Itahashi Kenta, Fujioka Hiroyuki, Suzuki Ken, Suzuki Takatoshi, Tanaka Yoshiki K., and Weick Helmut

Subjects
Physics, QC1-999
Abstract

The η′ meson mass may be reduced due to partial restoration of chiral symmetry. If this is the case, an η′-nucleus system may form a nuclear bound state.We plan to carry out a missing-mass spectroscopy experiment with the 12C(p,d) reaction at GSI-SIS. Peak structures corresponding to such a bound state may be observed even in an inclusive measurement, if the decay width is narrow enough.

Published
2012
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10. Search forη′ mesic nuclei by missing-mass spectroscopy of the12C(p,d) reaction

Author

Tanaka, Yoshiki K., primary, Ayyad, Yassid, additional, Benlliure, Jose, additional, Brinkmann, Kai-Thomas, additional, Friedrich, Stefan, additional, Fujioka, Hiroyuki, additional, Geissel, Hans, additional, Gellanki, Jnaneswari, additional, Guo, Chenlei, additional, Gutz, Eric, additional, Haettner, Emma, additional, Harakeh, Muhsin N., additional, Hayano, Ryugo S., additional, Higashi, Yuko, additional, Hirenzaki, Satoru, additional, Hornung, Christine, additional, Igarashi, Yoichi, additional, Ikeno, Natsumi, additional, Itahashi, Kenta, additional, Iwasaki, Masahiko, additional, Jido, Daisuke, additional, Kalantar-Nayestanaki, Nasser, additional, Kanungo, Rituparna, additional, Knoebel, Ronja, additional, Kurz, Nikolaus, additional, Metag, Volker, additional, Mukha, Ivan, additional, Nagae, Tomofumi, additional, Nagahiro, Hideko, additional, Nanova, Mariana, additional, Nishi, Takahiro, additional, Ong, Hooi Jin, additional, Pietri, Stephane, additional, Prochazka, Andrej, additional, Rappold, Christophe, additional, Reiter, Moritz P., additional, Rodríguez Sánchez, Jose Luis, additional, Scheidenberger, Christoph, additional, Simon, Haik, additional, Sitar, Branislav, additional, Strmen, Peter, additional, Sun, Baohua, additional, Suzuki, Ken, additional, Szarka, Imrich, additional, Takechi, Maya, additional, Tanihata, Isao, additional, Terashima, Satoru, additional, Watanabe, Yuni N., additional, Weick, Helmut, additional, Widmann, Eberhard, additional, Winfield, John S., additional, Xu, Xiaodong, additional, Yamakami, Hiroki, additional, and Zhao, Jianwei, additional

Published
2016
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11. Search for η′ mesic nuclei by missing-mass spectroscopy of the 12C(p,d) reaction.

Author

Haettner, Emma, Kurz, Nikolaus, Mukha, Ivan, Pietri, Stephane, Prochazka, Andrej, Rappold, Christophe, Reiter, Moritz P., Simon, Haik, Weick, Helmut, Winfield, John S., Xiaodong Xu, Tanaka, Yoshiki K., Geissel, Hans, Knoebel, Ronja, Scheidenberger, Christoph, Yoichi Igarashi, Natsumi Ikeno, Kenta Itahashi, Masahiko Iwasaki, and Takahiro Nishi

Subjects
MESIC molecules, MISSING-mass spectrometers, NUCLEAR cross sections, MESONS, PHYSICS research
Abstract

We performed a missing-mass spectroscopy experiment of the 12C(p, d) reaction at 2.5 GeV proton energy in order to search for η′ mesic nuclei. An excitation-energy spectrum of 11C was obtained around the η′ production threshold. As no significant peak structure was observed in the spectrum, upper limits of the formation cross section of η′ mesic nuclei have been determined. Preliminary results of the experiment as well as future prospects are given. [ABSTRACT FROM AUTHOR]

Published
2016
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12. Spectroscopy ofη′ Mesic Nuclei via Semi-Exclusive Measurement at FAIR

Author

Fujioka, Hiroyuki, primary, Brinkmann, Kai-Thomas, additional, Friedrich, Stefan, additional, Geissel, Hans, additional, Hayano, Ryugo S., additional, Hirenzaki, Satoru, additional, Itahashi, Kenta, additional, Itoh, Satoshi, additional, Jido, Daisuke, additional, Metag, Volker, additional, Nagahiro, Hideko, additional, Nanova, Mariana, additional, Nishi, Takahiro, additional, Okochi, Kota, additional, Outa, Haruhiko, additional, Suzuki, Ken, additional, Suzuki, Takatoshi, additional, Tanaka, Yoshiki K., additional, Watanabe, Yuni N., additional, and Weick, Helmut, additional

Published
2014
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13. Missing Mass Spectroscopy ofη′ Mesic Nuclei with the (p,d) Reaction at GSI

Author

Tanaka, Yoshiki K., primary, Brinkmann, Kai-Thomas, additional, Friedrich, Stefan, additional, Fujioka, Hiroyuki, additional, Geissel, Hans, additional, Hayano, Ryugo S., additional, Hirenzaki, Satoru, additional, Itahashi, Kenta, additional, Itoh, Satoshi, additional, Jido, Daisuke, additional, Metag, Volker, additional, Nagahiro, Hideko, additional, Nanova, Mariana, additional, Nishi, Takahiro, additional, Okochi, Kota, additional, Outa, Haruhiko, additional, Suzuki, Ken, additional, Suzuki, Takatoshi, additional, Watanabe, Yuni N., additional, and Weick, Helmut, additional

Published
2014
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14. Spectroscopy ofη′-nucleus bound states at GSI-SIS

Author

Fujioka, Hiroyuki, primary, Itahashi, Kenta, additional, Geissel, Hans, additional, Hayano, Ryugo S., additional, Hirenzaki, Satoru, additional, Itoh, Satoshi, additional, Jido, Daisuke, additional, Metag, Volker, additional, Nagahiro, Hideko, additional, Nanova, Mariana, additional, Nishi, Takahiro, additional, Okochi, Kota, additional, Outa, Haruhiko, additional, Suzuki, Ken, additional, Suzuki, Takatoshi, additional, Tanaka, Yoshiki K., additional, and Weick, Helmut, additional

Published
2012
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15. Spectroscopy of η'-nucleus bound states at GSI-SIS.

Author

Fujioka, Hiroyuki, Itahashi, Kenta, Geissel, Hans, Hayano, Ryugo S., Hirenzaki, Satoru, Itoh, Satoshi, Jido, Daisuke, Metag, Volker, Nagahiro, Hideko, Nanova, Mariana, Nishi, Takahiro, Okochi, Kota, Outa, Haruhiko, Suzuki, Ken, Suzuki, Takatoshi, Tanaka, Yoshiki K., and Weick, Helmut

Subjects
MESONS, ELECTRONS, HADRONS, SYMMETRY (Physics), MASS spectrometry
Abstract

The η' meson mass may be reduced due to partial restoration of chiral symmetry. If this is the case, an η'-nucleus system may form a nuclear bound state. We plan to carry out a missing-mass spectroscopy experiment with the 12C(p,d) reaction at GSI-SIS. Peak structures corresponding to such a bound state may be observed even in an inclusive measurement, if the decay width is narrow enough. [ABSTRACT FROM AUTHOR]

Published
2012
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