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1. Study of light hypernuclei in Europe: The hypertriton and nnΛ puzzles

Author

Rappold C., Achenbach P., Alibrahim Alfaki H., Amjad F., Armstrong M., Behr K.-H., Benlliure J., Brencic Z., Dickel T., Drozd V., Dubey S., Ekawa H., Escrig S., Feijoo-Fontan M., Fujioka H., Gao Y., Geissel H., Goldenbaum F., Graña Gonzalez A., Haettner E., Harakeh M. N., He Y., Heggen H., Hornung C., Hubbard N., Itahashi K., Iwasaki M., Kalantar-Nayestanaki N., Kasagi A., Kavatsyuk M., Kazantseva E., Khreptak A., Kindler B., Knoebel R., Kollmus H., Kostyleva D., Kraft-Bermuth S., Kurz N., Liu E., Lommel B., Metag V., Minami S., Morrissey D.J., Moskal P., Mukha I., Muneem A., Nakagawa M., Nakazawa K., Nociforo C., Ong H.J., Pietri S., Pochodzalla J., Purushothaman S., Rocco E., Rodríguez-Sánchez J.L., Roy P., Ruber R., Saito T.R., Schadmand S., Scheidenberger C., Schwarz P., Sekiya R., Serdyuk V., Skurzok M., Streicher B., Suzuki K., Szczepanczyk B., Tanaka Y. K., Tang X., Tortorelli N., Vencelj M., Wang H., Weber T., Weick H., Will M., Wimmer K., Yamamoto A., Yanai A., Yoshida J., and Zhao J.

Subjects
Physics, QC1-999
Abstract

The current understanding of light hypernuclei, which are sub-atomic nuclei with strangeness, is being challenged and studied in detail by several European research groups and collaborations. In recent years, studies of hypernuclei using high-energy heavy ion beams have reported unexpected results on the three-body hypernuclear state 3ΛH, named the hypertriton. For some time, reports of a shorter lifetime and larger binding energy than what was previously accepted have created a puzzling situation for its theoretical description; this is known as the "hypertriton puzzle". With the inclusion of the most recent experimental measurements, the current status of the hypertriton puzzle is evolving. Additionally, the possible neutral bound state of a Λ hyperon with two neutrons, nnΛ, has raised questions about our understanding of the formation of light hypernuclei either in bound or resonance states. These results have initiated several ongoing experimental programs all over the world to study these three-body hypernuclear states precisely. We are studying these light hypernuclear states by employing heavy ion beams at 2AGeV on a fixed carbon target with the WASA detector system and the Fragment Separator (FRS) at GSI. The WASA-FRS experimental campaign was performed during the first quarter of 2022, and this paper presents a short overview of the campaign and how it seeks to tackle the hypertriton and nnΛ puzzles. Data analysis is ongoing, and several preliminary results will be reported.

Published
2023
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2. A compact start time counter using plastic scintillators readout with MPPC arrays for the WASA-FRS HypHI experiment

Author

Liu, E., Drozd, V., Ekawa, H., Escrig, S., Gao, Y., He, Y., Kasagi, A., Nakagawa, M., Ong, H., Rappold, C., Sekiya, R., Saito, T.R., Tang, X., Tanaka, Y.K., Wang, H., Yanai, A., Achenbach, P., Alfaki, H. Alibrahim, Amjad, F., Armstrong, M., Behr, K.-H., Benlliure, J., Brencic, Z., Dickel, T., Dubey, S., Feijoo-Fontán, M., Fujioka, H., Geissel, H., Goldenbaum, F., González, A. Graña, Haettner, E., Harakeh, M.N., Heggen, H., Hornung, C., Hubbard, N., Itahashi, K., Iwasaki, M., Kalantar-Nayestanaki, N., Kavatsyuk, M., Kazantseva, E., Khreptak, A., Kindler, B., Knoebel, R., Kollmus, H., Kostyleva, D., Kraft-Bermuth, S., Kurz, N., Lommel, B., Minami, S., Morrissey, D.J., Moskal, P., Mukha, I., Muneem, A., Nakazawa, K., Nociforo, C., Pietri, S., Pochodzalla, J., Purushothaman, S., Rocco, E., Rodríguez-Sánchez, J.L., Roy, P., Ruber, R., Schadmand, S., Scheidenberger, C., Schwarz, P., Serdyuk, V., Skurzok, M., Streicher, B., Suzuki, K., Szczepanczyk, B., Tortorelli, N., Vencelj, M., Weber, T., Weick, H., Will, M., Wimmer, K., Yamamoto, A., Yoshida, J., and Zhao, J.

Published
2024
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3. First EXL experiment with stored radioactive beam: Proton scattering on 56Ni

Author

Schmid M. von, Bagchi S., Bönig S., Csatlós M., Dillmann I., Dimopoulou C., Egelhof P., Eremin V., Furuno T., Geissel H., Gernhäuser R., Harakeh M. N., Hartig A.-L., Ilieva S., Kalantar-Nayestanaki N., Kiselev O., Kollmus H., Kozhuharov C., Krasznahorkay A., Kröll T., Kuilman M., Litvinov S., Litvinov Yu. A., Mahjour-Shafiei M., Mutterer M., Nagae D., Najafi M. A., Nociforo C., Nolden F., Popp U., Rigollet C., Roy S., Scheidenberger C., Steck M., Streicher B., Stuhl L., Thürauf M., Uesaka T., Weick H., Winfield J. S., Winters D., Woods P. J., Yamaguchi T., Yue K., Zamora J. C., and Zenihiro J.

Subjects
Physics, QC1-999
Abstract

EXL (EXotic nuclei studied in Light-ion induced reactions at the NESR storage ring) is a project within NUSTAR at FAIR. It aims at investigations of light-ion induced direct reactions in inverse kinematics with radioactive ions cooled and stored in the future NESR (New Experimental Storage Ring). The existing ESR (Experimental Storage Ring) at GSI, together with its internal gas-jet target, provides a unique opportunity to perform such kind of experiments on a smaller scale at the present time. We have developed a UHV-compatible (Ultra High Vacuum) detector setup mainly based on DSSDs (Double-sided Silicon-Strip Detector) for the target-like recoils [4]. With this setup we were able to successfully investigate reactions with a stored radioactive beam for the first time ever. As a part of the first EXL campaign we investigated the reaction 56Ni(p,p)56Ni in inverse kinematics in order to measure the differential cross section for elastic proton scattering and deduce the nuclear-matter distribution and radius of 56Ni. In the following, the experimental setup is introduced in more detail, and the current status of the ongoing analysis is discussed.

Published
2014
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4. The WASA-FRS project at GSI and its perspective

Author

Saito, T.R., Achenbach, P., Alfaki, H. Alibrahim, Amjad, F., Armstrong, M., Behr, K.-H., Benlliure, J., Brencic, Z., Dickel, T., Drozd, V., Dubey, S., Ekawa, H., Escrig, S., Feijoo-Fontán, M., Fujioka, H., Gao, Y., Geissel, H., Goldenbaum, F., González, A. Graña, Haettner, E., Harakeh, M.N., He, Y., Heggen, H., Hornung, C., Hubbard, N., Itahashi, K., Iwasaki, M., Kalantar-Nayestanaki, N., Kasagi, A., Kavatsyuk, M., Kazantseva, E., Khreptak, A., Kindler, B., Knoebel, R., Kollmus, H., Kostyleva, D., Kraft-Bermuth, S., Kurz, N., Liu, E., Lommel, B., Metag, V., Minami, S., Morrissey, D.J., Moskal, P., Mukha, I., Muneem, A., Nakagawa, M., Nakazawa, K., Nociforo, C., Ong, H.J., Pietri, S., Pochodzalla, J., Purushothaman, S., Rappold, C., Rocco, E., Rodríguez-Sánchez, J.L., Roy, P., Ruber, R., Schadmand, S., Scheidenberger, C., Schwarz, P., Sekiya, R., Serdyuk, V., Skurzok, M., Streicher, B., Suzuki, K., Szczepanczyk, B., Tanaka, Y.K., Tang, X., Tortorelli, N., Vencelj, M., Wang, H., Weber, T., Weick, H., Will, M., Wimmer, K., Yamamoto, A., Yanai, A., Yoshida, J., and Zhao, J.

Published
2023
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5. Matter radius of the doubly-magic 56Ni measured in a storage ring

Author

von Schmid, M., Aumann, T., Bagchi, S., Bönig, S., Csatlós, M., Dillmann, I., Dimopoulou, C., Egelhof, P., Eremin, V., Furuno, T., Geissel, H., Gernhäuser, R., Harakeh, M. N., Hartig, A.-L., Ilieva, S., Kalantar-Nayestanaki, N., Kiselev, O., Kollmus, H., Kozhuharov, C., Krasznahorkay, A., Kröll, Th., Kuilman, M., Litvinov, S., Litvinov, Yu. A., Mahjour-Shafiei, M., Mutterer, M., Nagae, D., Najafi, M. A., Nociforo, C., Nolden, F., Popp, U., Rigollet, C., Roth, R., Roy, S., Scheidenberger, C., Steck, M., Streicher, B., Stuhl, L., Thürauf, M., Uesaka, T., Weick, H., Winfield, J. S., Winters, D., Woods, P. J., Yamaguchi, T., Yue, K., Zamora Cardona, J. C., and Zenihiro, J.

Published
2023
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6. Determination of the Neutron-Capture Rate of 17C for the R-process Nucleosynthesis

Author

Heine, M., Typel, S., Wu, M. -R., Adachi, T., Aksyutina, Y., Alcantara, J., Altstadt, S., Alvarez-Pol, H., Ashwood, N., Aumann, T., Avdeichikov, V., Barr, M., Beceiro-Novo, S., Bemmerer, D., Benlliure, J., Bertulani, C. A., Boretzky, K., Borge, M. J. G., Burgunder, G., Caamano, M., Caesar, C., Casarejos, E., Catford, W., Cederkäll, J., Chakraborty, S., Chartier, M., Chulkov, L. V., Cortina-Gil, D., Crespo, R., Pramanik, U. Datta, Fernandez, P. Diaz, Dillmann, I., Elekes, Z., Enders, J., Ershova, O., Estrade, A., Farinon, F., Fraile, L. M., Freer, M., Freudenberger, M., Fynbo, H. O. U., Galaviz, D., Geissel, H., Gernhäuser, R., Göbel, K., Golubev, P., Diaz, D. Gonzalez, Hagdahl, J., Heftrich, T., Heil, M., Heinz, A., Henriques, A., Holl, M., Ickert, G., Ignatov, A., Jakobsson, B., Johansson, H. T., Jonson, B., Kalantar-Nayestanaki, N., Kanungo, R., Kelic-Heil, A., Knöbel, R., Kröll, T., Krücken, R., Kurcewicz, J., Kurz, N., Labiche, M., Langer, C., Bleis, T. Le, Lemmon, R., Lepyoshkina, O., Lindberg, S., Machado, J., Marganiec, J., Martínez-Pinedo, G., Maroussov, V., Mostazo, M., Movsesyan, A., Najafi, A., Neff, T., Nilsson, T., Nociforo, C., Panin, V., Paschalis, S., Perea, A., Petri, M., Pietri, S., Plag, R., Prochazka, A., Rahaman, A., Rastrepina, G., Reifarth, R., Ribeiro, G., Ricciardi, M. V., Rigollet, C., Riisager, K., Röder, M., Rossi, D., del Rio, J. Sanchez, Savran, D., Scheit, H., Simon, H., Sorlin, O., Stoica, V., Streicher, B., Taylor, J. T., Tengblad, O., Terashima, S., Thies, R., Togano, Y., Uberseder, E., Van de Walle, J., Velho, P., Volkov, V., Wagner, A., Wamers, F., Weick, H., Weigand, M., Wheldon, C., Wilson, G., Wimmer, C., Winfield, J. S., Woods, P., Yakorev, D., Zhukov, M. V., Zilges, A., and Zuber, K.

Subjects
Nuclear Experiment, Astrophysics - Solar and Stellar Astrophysics
Abstract

With the R$^{3}$B-LAND setup at GSI we have measured exclusive relative-energy spectra of the Coulomb dissociation of $^{18}$C at a projectile energy around 425~AMeV on a lead target, which are needed to determine the radiative neutron-capture cross sections of $^{17}$C into the ground state of $^{18}$C. Those data have been used to constrain theoretical calculations for transitions populating excited states in $^{18}$C. This allowed to derive the astrophysical cross section $\sigma^{*}_{\mathrm{n}\gamma}$ accounting for the thermal population of $^{17}$C target states in astrophysical scenarios. The experimentally verified capture rate is significantly lower than those of previously obtained Hauser-Feshbach estimations at temperatures $T_{9}\leq{}1$~GK. Network simulations with updated neutron-capture rates and hydrodynamics according to the neutrino-driven wind model as well as the neutron-star merger scenario reveal no pronounced influence of neutron capture of $^{17}$C on the production of second- and third-peak elements in contrast to earlier sensitivity studies.

Published
2016
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7. Systematic investigation of projectile fragmentation using beams of unstable B and C isotopes

Author

Thies, R., Heinz, A., Adachi, T., Aksyutina, Y., Alcantara-Núñes, J., Altstadt, S., Alvarez-Pol, H., Ashwood, N., Aumann, T., Avdeichikov, V., Barr, M., Beceiro-Novo, S., Bemmerer, D., Benlliure, J., Bertulani, C. A., Boretzky, K., Borge, M. J. G., Burgunder, G., Caamano, M., Caesar, C., Casarejos, E., Catford, W., Cederkäll, J., Chakraborty, S., Chartier, M., Chulkov, L. V., Cortina-Gil, D., Crespo, R., Datta, U., Fernández, P. Díaz, Dillmann, I., Elekes, Z., Enders, J., Ershova, O., Estradé, A., Farinon, F., Fraile, L. M., Freer, M., Freudenberger, M., Fynbo, H. O. U., Galaviz, D., Geissel, H., Gernhäuser, R., Göbel, K., Golubev, P., Diaz, D. Gonzalez, Hagdahl, J., Heftrich, T., Heil, M., Heine, M., Henriques, A., Holl, M., Ickert, G., Ignatov, A., Jakobsson, B., Johansson, H. T., Jonson, B., Kalantar-Nayestanaki, N., Kanungo, R., Knöbel, R., Kröll, T., Krücken, R., Kurcewicz, J., Kurz, N., Labiche, M., Langer, C., Bleis, T. Le, Lemmon, R., Lepyoshkina, O., Lindberg, S., Machado, J., Marganiec, J., Maroussov, V., Mostazo, M., Movsesyan, A., Najafi, A., Nilsson, T., Nociforo, C., Panin, V., Paschalis, S., Perea, A., Petri, M., Pietri, S., Plag, R., Prochazka, A., Rahaman, A., Rastrepina, G., Reifarth, R., Ribeiro, G., Ricciardi, M. V., Rigollet, C., Riisager, K., Röder, M., Rossi, D., del Rio, J. Sanchez, Savran, D., Scheit, H., Simon, H., Sorlin, O., Stoica, V., Streicher, B., Taylor, J. T., Tengblad, O., Terashima, S., Togano, Y., Uberseder, E., Van de Walle, J., Velho, P., Volkov, V., Wagner, A., Wamers, F., Weick, H., Weigand, M., Wheldon, C., Wilson, G., Wimmer, C., Winfield, J. S., Woods, P., Yakorev, D., Zhukov, M. V., Zilges, A., and Zuber, K.

Subjects
Nuclear Experiment
Abstract

Background: Models describing nuclear fragmentation and fragmentation-fission deliver important input for planning nuclear physics experiments and future radioactive ion beam facilities. These models are usually benchmarked against data from stable beam experiments. In the future, two-step fragmentation reactions with exotic nuclei as stepping stones are a promising tool to reach the most neutron-rich nuclei, creating a need for models to describe also these reactions. Purpose: We want to extend the presently available data on fragmentation reactions towards the light exotic region on the nuclear chart. Furthermore, we want to improve the understanding of projectile fragmentation especially for unstable isotopes. Method: We have measured projectile fragments from 10,12-18C and 10-15B isotopes colliding with a carbon target. These measurements were all performed within one experiment, which gives rise to a very consistent dataset. We compare our data to model calculations. Results: One-proton removal cross sections with different final neutron numbers (1pxn) for relativistic 10,12-18C and 10-15B isotopes impinging on a carbon target. Comparing model calculations to the data, we find that EPAX is not able to describe the data satisfactorily. Using ABRABLA07 on the other hand, we find that the average excitation energy per abraded nucleon needs to be decreased from 27 MeV to 8.1 MeV. With that decrease ABRABLA07 describes the data surprisingly well. Conclusions: Extending the available data towards light unstable nuclei with a consistent set of new data have allowed for a systematic investigation of the role of the excitation energy induced in projectile fragmentation. Most striking is the apparent mass dependence of the average excitation energy per abraded nucleon. Nevertheless, this parameter, which has been related to final-state interactions, requires further study.

Published
2016
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8. Nuclear reactions in the storage ring ESR with EXL

Author

Kröll, Th., Schmid, M. von, Zamora, J. C., Bagchi, S., Bönig, S., Csatlós, M., Dillmann, I., Dimopoulou, C., Egelhof, P., Eremin, V., Furuno, T., Geissel, H., Gernhäuser, R., Harakeh, M. N., Hartig, A. L., Ilieva, S., Kalantar-Nayestanaki, N., Kiselev, O., Kollmus, H., Kozhuharov, C., Krasznahorkay, A., Kuilman, M., Litvinov, S., Litvinov, Yu A., Mahjour-Shafiei, M., Mutterer, M., Nagae, D., Najafi, M. A., Nociforo, C., Nolden, F., Popp, U., Rigollet, C., Roy, S., Scheidenberger, C., Steck, M., Streicher, B., Stuhl, L., Thürauf, M., Uesaka, T., Weick, H., Winfield, J. S., Winters, D., Woods, P. J., Yamaguchi, T., Yue, K., Zenihiro, J., Kröll, Th., Schmid, M. von, Zamora, J. C., Bagchi, S., Bönig, S., Csatlós, M., Dillmann, I., Dimopoulou, C., Egelhof, P., Eremin, V., Furuno, T., Geissel, H., Gernhäuser, R., Harakeh, M. N., Hartig, A. L., Ilieva, S., Kalantar-Nayestanaki, N., Kiselev, O., Kollmus, H., Kozhuharov, C., Krasznahorkay, A., Kuilman, M., Litvinov, S., Litvinov, Yu A., Mahjour-Shafiei, M., Mutterer, M., Nagae, D., Najafi, M. A., Nociforo, C., Nolden, F., Popp, U., Rigollet, C., Roy, S., Scheidenberger, C., Steck, M., Streicher, B., Stuhl, L., Thürauf, M., Uesaka, T., Weick, H., Winfield, J. S., Winters, D., Woods, P. J., Yamaguchi, T., Yue, K., and Zenihiro, J.

Abstract

The EXL project aims to study nuclear structure by direct reactions in inverse kinematics at the storage rings of the future FAIR facility. In this contribution, we present the status of the project: the technical implementation at the ESR at GSI and preliminary results of the EXL campaign in 2012, the first using also a radioactive beam.

Published
2024

9. Nuclear astrophysics with radioactive ions at FAIR

Author

Reifarth, R., Altstadt, S., Göbel, K., Heftrich, T., Heil, M., Koloczek, A., Langer, C., Plag, R., Pohl, M., Sonnabend, K., Weigand, M., Adachi, T., Aksouh, F., Al-Khalili, J., AlGarawi, M., AlGhamdi, S., Alkhazov, G., Alkhomashi, N., Alvarez-Pol, H., Alvarez-Rodriguez, R., Andreev, V., Andrei, B., Atar, L., Aumann, T., Avdeichikov, V., Bacri, C., Bagchi, S., Barbieri, C., Beceiro, S., Beck, C., Beinrucker, C., Belier, G., Bemmerer, D., Bendel, M., Benlliure, J., Benzoni, G., Berjillos, R., Bertini, D., Bertulani, C., Bishop, S., Blasi, N., Bloch, T., Blumenfeld, Y., Bonaccorso, A., Boretzky, K., Botvina, A., Boudard, A., Boutachkov, P., Boztosun, I., Bracco, A., Brambilla, S., Monago, J. Briz, Caamano, M., Caesar, C., Camera, F., Casarejos, E., Catford, W., Cederkall, J., Cederwall, B., Chartier, M., Chatillon, A., Cherciu, M., Chulkov, L., Coleman-Smith, P., Cortina-Gil, D., Crespi, F., Crespo, R., Cresswell, J., Csatlós, M., Déchery, F., Davids, B., Davinson, T., Derya, V., Detistov, P., Fernandez, P. Diaz, DiJulio, D., Dmitry, S., Doré, D., Duenas, J., Dupont, E., Egelhof, P., Egorova, I., Elekes, Z., Enders, J., Endres, J., Ershov, S., Ershova, O., Fernandez-Dominguez, B., Fetisov, A., Fiori, E., Fomichev, A., Fonseca, M., Fraile, L., Freer, M., Friese, J., Borge, M. G., Redondo, D. Galaviz, Gannon, S., Garg, U., Gasparic, I., Gasques, L., Gastineau, B., Geissel, H., Gernhäuser, R., Ghosh, T., Gilbert, M., Glorius, J., Golubev, P., Gorshkov, A., Gourishetty, A., Grigorenko, L., Gulyas, J., Haiduc, M., Hammache, F., Harakeh, M., Hass, M., Heine, M., Hennig, A., Henriques, A., Herzberg, R., Holl, M., Ignatov, A., Ignatyuk, A., Ilieva, S., Ivanov, M., Iwasa, N., Jakobsson, B., Johansson, H., Jonson, B., Joshi, P., Junghans, A., Jurado, B., Körner, G., Kalantar, N., Kanungo, R., Kelic-Heil, A., Kezzar, K., Khan, E., Khanzadeev, A., Kiselev, O., Kogimtzis, M., Körper, D., Kräckmann, S., Kröll, T., Krücken, R., Krasznahorkay, A., Kratz, J., Kresan, D., Krings, T., Krumbholz, A., Krupko, S., Kulessa, R., Kumar, S., Kurz, N., Kuzmin, E., Labiche, M., Langanke, K., Lazarus, I., Bleis, T. Le, Lederer, C., Lemasson, A., Lemmon, R., Liberati, V., Litvinov, Y., Löher, B., Herraiz, J. Lopez, Münzenberg, G., Machado, J., Maev, E., Mahata, K., Mancusi, D., Marganiec, J., Perez, M. Martinez, Marusov, V., Mengoni, D., Million, B., Morcelle, V., Moreno, O., Movsesyan, A., Nacher, E., Najafi, M., Nakamura, T., Naqvi, F., Nikolski, E., Nilsson, T., Nociforo, C., Nolan, P., Novatsky, B., Nyman, G., Ornelas, A., Palit, R., Pandit, S., Panin, V., Paradela, C., Parkar, V., Paschalis, S., Pawłowski, P., Perea, A., Pereira, J., Petrache, C., Petri, M., Pickstone, S., Pietralla, N., Pietri, S., Pivovarov, Y., Potlog, P., Prokofiev, A., Rastrepina, G., Rauscher, T., Ribeiro, G., Ricciardi, M., Richter, A., Rigollet, C., Riisager, K., Rios, A., Ritter, C., Frutos, T. Rodríguez, Vignote, J. Rodriguez, Röder, M., Romig, C., Rossi, D., Roussel-Chomaz, P., Rout, P., Roy, S., Söderström, P., Sarkar, M. Saha, Sakuta, S., Salsac, M., Sampson, J., Saez, J. Sanchez del Rio, Rosado, J. Sanchez, Sanjari, S., Sarriguren, P., Sauerwein, A., Savran, D., Scheidenberger, C., Scheit, H., Schmidt, S., Schmitt, C., Schnorrenberger, L., Schrock, P., Schwengner, R., Seddon, D., Sherrill, B., Shrivastava, A., Sidorchuk, S., Silva, J., Simon, H., Simpson, E., Singh, P., Slobodan, D., Sohler, D., Spieker, M., Stach, D., Stan, E., Stanoiu, M., Stepantsov, S., Stevenson, P., Strieder, F., Stuhl, L., Suda, T., Sümmerer, K., Streicher, B., Taieb, J., Takechi, M., Tanihata, I., Taylor, J., Tengblad, O., Ter-Akopian, G., Terashima, S., Teubig, P., Thies, R., Thoennessen, M., Thomas, T., Thornhill, J., Thungstrom, G., Timar, J., Togano, Y., Tomohiro, U., Tornyi, T., Tostevin, J., Townsley, C., Trautmann, W., Trivedi, T., Typel, S., Uberseder, E., Udias, J., Uesaka, T., Uvarov, L., Vajta, Z., Velho, P., Vikhrov, V., Volknandt, M., Volkov, V., von Neumann-Cosel, P., von Schmid, M., Wagner, A., Wamers, F., Weick, H., Wells, D., Westerberg, L., Wieland, O., Wiescher, M., Wimmer, C., Wimmer, K., Winfield, J. S., Winkel, M., Woods, P., Wyss, R., Yakorev, D., Yavor, M., Cardona, J. Zamora, Zartova, I., Zerguerras, T., Zgura, I., Zhdanov, A., Zhukov, M., Zieblinski, M., Zilges, A., and Zuber, K.

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, Nuclear Experiment
Abstract

The nucleosynthesis of elements beyond iron is dominated by neutron captures in the s and r processes. However, 32 stable, proton-rich isotopes cannot be formed during those processes, because they are shielded from the s-process flow and r-process beta-decay chains. These nuclei are attributed to the p and rp process. For all those processes, current research in nuclear astrophysics addresses the need for more precise reaction data involving radioactive isotopes. Depending on the particular reaction, direct or inverse kinematics, forward or time-reversed direction are investigated to determine or at least to constrain the desired reaction cross sections. The Facility for Antiproton and Ion Research (FAIR) will offer unique, unprecedented opportunities to investigate many of the important reactions. The high yield of radioactive isotopes, even far away from the valley of stability, allows the investigation of isotopes involved in processes as exotic as the r or rp processes., Comment: Invited Talk given at the Conference Nuclear Physice in Astrophysics VI (NPA6), Lisbon, Portugal, May 19-24 2013. To appear in the NPA6 Proceedings in Journal of Physics: Conference Series (JPCS)

Published
2013
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11. Beyond the Neutron Drip-Line: The Unbound Oxygen Isotopes 25O and 26O

Author

Caesar, C., Simonis, J., Adachi, T., Aksyutina, Y., Alcantara, J., Altstadt, S., Alvarez-Pol, H., Ashwood, N., Aumann, T., Avdeichikov, V., Barr, M., Beceiro, S., Bemmerer, D., Benlliure, J., Bertulani, C. A., Boretzky, K., Borge, M. J. G., Burgunder, G., Caamano, M., Casarejos, E., Catford, W., Cederkäll, J., Chakraborty, S., Chartier, M., Chulkov, L., Cortina-Gil, D., Pramanik, U. Datta, Fernandez, P. Diaz, Dillmann, I., Elekes, Z., Enders, J., Ershova, O., Estrade, A., Farinon, F., Fraile, L. M., Freer, M., Freudenberger, M., Fynbo, H. O. U., Galaviz, D., Geissel, H., Gernhäuser, R., Golubev, P., Diaz, D. Gonzalez, Hagdahl, J., Heftrich, T., Heil, M., Heine, M., Heinz, A., Henriques, A., Holl, M., Holt, J. D., Ickert, G., Ignatov, A., Jakobsson, B., Johansson, H. T., Jonson, B., Kalantar-Nayestanaki, N., Kanungo, R., Kelic-Heil, A., Knöbel, R., Kröll, T., Krücken, R., Kurcewicz, J., Labiche, M., Langer, C., Bleis, T. Le, Lemmon, R., Lepyoshkina, O., Lindberg, S., Machado, J., Marganiec, J., Maroussov, V., Menéndez, J., Mostazo, M., Movsesyan, A., Najafi, A., Nilsson, T., Nociforo, C., Panin, V., Perea, A., Pietri, S., Plag, R., Prochazka, A., Rahaman, A., Rastrepina, G., Reifarth, R., Ribeiro, G., Ricciardi, M. V., Rigollet, C., Riisager, K., Röder, M., Rossi, D. M., del Rio, J. Sanchez, Savran, D., Scheit, H., Schwenk, A., Simon, H., Sorlin, O., Stoica, V., Streicher, B., Taylor, J., Tengblad, O., Terashima, S., Thies, R., Togano, Y., Uberseder, E., Van de Walle, J., Velho, P., Volkov, V., Wagner, A., Wamers, F., Weick, H., Weigand, M., Wheldon, C., Wilson, G., Wimmer, C., Winfield, J. S., Woods, P., Yakorev, D., Zhukov, M. V., Zilges, A., Zoric, M., Zuber, K., and collaboration, R3B

Subjects
Nuclear Experiment, Nuclear Theory
Abstract

The very neutron-rich oxygen isotopes 25O and 26O are investigated experimentally and theoret- ically. In this first R3B-LAND experiment, the unbound states are populated at GSI via proton- knockout reactions from 26F and 27F at relativistic energies around 450 MeV/nucleon. From the kinematically complete measurement of the decay into 24O plus one or two neutrons, the 25O ground- state energy and lifetime are determined, and upper limits for the 26O ground state are extracted. In addition, the results provide evidence for an excited state in 26O at around 4 MeV. The ex- perimental findings are compared to theoretical shell-model calculations based on chiral two- and three-nucleon (3N) forces, including for the first time residual 3N forces, which are shown to be amplified as valence neutrons are added.

Published
2012
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12. First Application of Pulse-Shape Analysis to Silicon Micro-Strip Detectors

Author

von Schmid, M., Egelhof, P., Eremin, V., Gernhäuser, R., Kröll, T., Mutterer, M., Pietralla, N., Streicher, B., and Weber, M.

Subjects
Nuclear Experiment
Abstract

The method of pulse-shape analysis (PSA) for particle identification (PID) was applied to a double-sided silicon strip detector (DSSD) with a strip pitch of 300 \{mu}m. We present the results of test measurements with particles from the reactions of a 70 MeV 12C beam impinging on a mylar target. Good separation between protons and alpha particles down to 3 MeV has been obtained when excluding the interstrip events of the DSSD from the analysis., Comment: 7 pages, 6 figures, submitted to Nuclear Inst. and Methods in Physics Research A

Published
2010
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13. Cochlear implant rehabilitation in older adults - self-assessments of listening success and challenges

Author

Pützer, E, Streicher, B, Lang-Roth, R, and Schäfer, K

Subjects
age-related hearing loss, Cochlea-Implantat, ddc: 610, acquired hearing loss, cochlear implant, Altersschwerhörigkeit, Ertaubung
Abstract

Background: The recent increase in the number of cochlear implantations in older people has sparked new interest in researching this target population. Findings in previous studies suggest that a cochlear implant (CI) brings considerable benefits for older people. However, limited attention has been given to the views of CI recipients themselves, and how they perceive success and challenges in the time following implantation. Method: Records of n =22 former patients at Cologne University Hospital were examined using qualitative content analysis. All patients were fitted with a CI in one ear between 2017 and 2019 when they were 69 years or older. They all used a hearing aid for auditive support on the other ear. Audiometric data from pure tone audiometry and speech audiometry was collected and analyzed along with personal comments on how individuals perceived the success and how they were able to handle the hearing technology.Results: Findings suggest that individuals' speech comprehension in the OLSA in quiet improved considerably after implantation and therapy. This was observed both in the collective group and in intraindividual comparison. Half of the group stated that they were partly satisfied or completely satisfied with their CI. Most of the patients reported that they kept the sound processor on throughout the entire day. However, according to their self-reports, most participants felt challenged in their understanding of speech in groups, with background noise, when talking on the phone, watching TV, and/or when listening to music. Some of the participants reported that they required support with handling the technical equipment. It was not possible to depict a comprehensive picture of the participants' social contacts based on the collected data. However, our findings suggest that developing an understanding of speech after cochlear implantation seems to be perceived as more difficult for persons living on their own. Conclusion: CI patients over 69 years reported difficulties in everyday life, particularly in challenging communicative situations, in media use and in using technical accessories. These difficulties should be taken into consideration during preoperative counselling regarding cochlear implantation and also during the rehabilitation process that follows implantation. More importantly, these difficulties should be directly addressed with patients to optimize the pre- and postoperative processes involved. Hintergrund: In den letzten Jahren stieg die Anzahl der CI-Versorgungen im höheren Alter an und in der Forschung wurde dieser Zielgruppe mehr Aufmerksamkeit geschenkt. Aufgrund bisheriger Forschungsergebnisse lässt sich annehmen, dass ältere Menschen durch ein CI in vielerlei Hinsicht deutlich profitieren können. Allerdings wurde der subjektiven Wahrnehmung von Erfolgen und Herausforderungen der Patienten im Rahmen der Basis- und Folgetherapie bisher wenig Beachtung geschenkt. Methode: In der vorliegenden Arbeit wurden Patientendokumentationen einer Stichprobe von denjenigen n =22 Personen der Kölner Uniklinik aus den Jahren 2017-2019 mittels qualitativer Inhaltsanalyse retrospektiv untersucht, die ab dem 70. Lebensjahr einseitig mit einem CI versorgt wurden und auf der kontralateralen Seite ein Hörgerät nutzten. Ausgewertet wurden sowohl die audiometrischen Daten aus der Ton- und Sprachaudiometrie als auch persönliche Angaben zum subjektiv erlebten Hörerfolg und Handling der Hörtechnik. Ergebnisse: Aus den Ergebnissen geht hervor, dass das postoperative Sprachverstehen gemessen mit dem OLSA in Ruhe sowohl in der Gesamtgruppe als auch intraindividuell besser war als das präoperative Ergebnis. Mindestens die Hälfte der Personen waren mit ihrem CI teilweise oder vollständig zufrieden. Der überwiegende Anteil der Personen trug den Sprachprozessor während des gesamten Tages. Das Sprachverstehen in Gruppen, im Störschall, beim Telefonieren, beim Fernsehen und das Musikhören stellte die meisten Personen laut eigener Einschätzung jedoch vor größere Herausforderungen. Auch im Umgang mit dem technischen Zubehör zeigten einige Personen Unterstützungsbedarf. Ein umfassendes Bild über die sozialen Kontakte der befragten Personen mit CI ließ sich aufgrund der vorliegenden Daten nicht abbilden. Es deutete sich jedoch an, dass die Entwicklung des Sprachverstehens mit CI von alleinlebenden Personen als erschwert wahrgenommen wurde. Fazit: Die postoperativen Schwierigkeiten in herausfordernden kommunikativen Situationen im Alltag sowie bei der Mediennutzung und der Technikhandhabung, die in der untersuchten Stichprobe über 69 Jahre offensichtlich wurden, sollten in einer Beratung bezüglich einer CI-Versorgung und in der anschließenden Hörrehabilitation beachtet und mit den Patienten thematisiert werden, um die prä- und postoperativen Prozesse zu optimieren.

Published
2023
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16. The WASA-FRS project at GSI and its perspective

Author

Saito, T. R., Achenbach, P., Alfaki, H. Alibrahim, Amjad, F., Armstrong, M., Behr, K. H., Benlliure, J., Brencic, Z., Dickel, T., Drozd, V., Dubey, S., Ekawa, H., Escrig, S., Feijoo-Fontan, M., Fujioka, H., Gao, Y., Geissel, H., Goldenbaum, F., Gonzalez, A. Grafia, Haettner, E., Harakeh, M. N., He, Y., Heggen, H., Hornung, C., Hubbard, N., Itahashi, K., Iwasaki, M., Kalantar-Nayestanaki, N., Kasagi, A., Kavatsyuk, M., Kazantseva, E., Khreptak, A., Kindler, B., Knoebel, R., Kollmus, H., Kostyleva, D., Kraft-Bermuth, S., Kurz, N., Liu, E., Lommel, B., Metag, V., Minami, S., Morrissey, D. J., Moskal, P., Mukha, I., Muneem, A., Nakagawa, M., Nakazawa, K., Nociforo, C., Ong, H. J., Pietri, S., Pochodzalla, J., Purushothaman, S., Rappold, C., Rocco, E., Rodriguez-Sanchez, J. L., Roy, P., Ruber, Roger, Schadmand, S., Scheidenberger, C., Schwarz, P., Sekiya, R., Serdyuk, V., Skurzok, M., Streicher, B., Suzuki, K., Szczepanczyk, B., Tanaka, Y. K., Tang, X., Tortorelli, N., Vencelj, M., Wang, H., Weber, T., Weick, H., Will, M., Wimmer, K., Yamamoto, A., Yanai, A., Yoshida, J., Zhao, J., Saito, T. R., Achenbach, P., Alfaki, H. Alibrahim, Amjad, F., Armstrong, M., Behr, K. H., Benlliure, J., Brencic, Z., Dickel, T., Drozd, V., Dubey, S., Ekawa, H., Escrig, S., Feijoo-Fontan, M., Fujioka, H., Gao, Y., Geissel, H., Goldenbaum, F., Gonzalez, A. Grafia, Haettner, E., Harakeh, M. N., He, Y., Heggen, H., Hornung, C., Hubbard, N., Itahashi, K., Iwasaki, M., Kalantar-Nayestanaki, N., Kasagi, A., Kavatsyuk, M., Kazantseva, E., Khreptak, A., Kindler, B., Knoebel, R., Kollmus, H., Kostyleva, D., Kraft-Bermuth, S., Kurz, N., Liu, E., Lommel, B., Metag, V., Minami, S., Morrissey, D. J., Moskal, P., Mukha, I., Muneem, A., Nakagawa, M., Nakazawa, K., Nociforo, C., Ong, H. J., Pietri, S., Pochodzalla, J., Purushothaman, S., Rappold, C., Rocco, E., Rodriguez-Sanchez, J. L., Roy, P., Ruber, Roger, Schadmand, S., Scheidenberger, C., Schwarz, P., Sekiya, R., Serdyuk, V., Skurzok, M., Streicher, B., Suzuki, K., Szczepanczyk, B., Tanaka, Y. K., Tang, X., Tortorelli, N., Vencelj, M., Wang, H., Weber, T., Weick, H., Will, M., Wimmer, K., Yamamoto, A., Yanai, A., Yoshida, J., and Zhao, J.

Abstract

A novel technique to study bound states of exotic hadrons in subatomic nuclei, such as hypernuclei and mesic nuclei, has been developed by employing the Fragment Separator FRS and the WASA central detector at GSI. Two experiments, S447 for studying light hypernuclei, especially hypertriton and a Ann bound state, and S490 for searching for ri' mesic-nuclei, were recently performed. Data analyses are currently in progress, and light charged particles such as protons and x & PLUSMN; are clearly observed and identified in the both experiments. For S447, light nuclear fragments that can also be residual nuclei from decays of hypernuclei of interests have been analysed by the FRS, and a momentum resolution, Ap/p, of 5 x 10-4 has been achieved. Further data analyses are to be completed. The WASA-FRS project will be continued and extended with the FRS at FAIR Phase 0, and upgrading of the WASA magnet and detectors is currently in progress. Furthermore, construction of a larger detector system with the Super-FRS at FAIR Phase 1 is also under consideration.

Published
2023
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17. Cochlea-Implantat Versorgung bei älteren Menschen - subjektive Einschätzungen zu Hörerfolgen und Herausforderungen

Author

Pützer, E, Streicher, B, Lang-Roth, R, Schäfer, K, Pützer, E, Streicher, B, Lang-Roth, R, and Schäfer, K

Abstract

Background: The recent increase in the number of cochlear implantations in older people has sparked new interest in researching this target population. Findings in previous studies suggest that a cochlear implant (CI) brings considerable benefits for older people. However, limited attention has been given to the views of CI recipients themselves, and how they perceive success and challenges in the time following implantation. Method: Records of n =22 former patients at Cologne University Hospital were examined using qualitative content analysis. All patients were fitted with a CI in one ear between 2017 and 2019 when they were 69 years or older. They all used a hearing aid for auditive support on the other ear. Audiometric data from pure tone audiometry and speech audiometry was collected and analyzed along with personal comments on how individuals perceived the success and how they were able to handle the hearing technology.Results: Findings suggest that individuals' speech comprehension in the OLSA in quiet improved considerably after implantation and therapy. This was observed both in the collective group and in intraindividual comparison. Half of the group stated that they were partly satisfied or completely satisfied with their CI. Most of the patients reported that they kept the sound processor on throughout the entire day. However, according to their self-reports, most participants felt challenged in their understanding of speech in groups, with background noise, when talking on the phone, watching TV, and/or when listening to music. Some of the participants reported that they required support with handling the technical equipment. It was not possible to depict a comprehensive picture of the participants' social contacts based on the collected data. However, our findings suggest that developing an understanding of speech after cochlear implantation seems to be perceived as more difficult for persons living on their own. Conclusion: CI patients over 69 years r, Hintergrund: In den letzten Jahren stieg die Anzahl der CI-Versorgungen im höheren Alter an und in der Forschung wurde dieser Zielgruppe mehr Aufmerksamkeit geschenkt. Aufgrund bisheriger Forschungsergebnisse lässt sich annehmen, dass ältere Menschen durch ein CI in vielerlei Hinsicht deutlich profitieren können. Allerdings wurde der subjektiven Wahrnehmung von Erfolgen und Herausforderungen der Patienten im Rahmen der Basis- und Folgetherapie bisher wenig Beachtung geschenkt. Methode: In der vorliegenden Arbeit wurden Patientendokumentationen einer Stichprobe von denjenigen n =22 Personen der Kölner Uniklinik aus den Jahren 2017-2019 mittels qualitativer Inhaltsanalyse retrospektiv untersucht, die ab dem 70. Lebensjahr einseitig mit einem CI versorgt wurden und auf der kontralateralen Seite ein Hörgerät nutzten. Ausgewertet wurden sowohl die audiometrischen Daten aus der Ton- und Sprachaudiometrie als auch persönliche Angaben zum subjektiv erlebten Hörerfolg und Handling der Hörtechnik. Ergebnisse: Aus den Ergebnissen geht hervor, dass das postoperative Sprachverstehen gemessen mit dem OLSA in Ruhe sowohl in der Gesamtgruppe als auch intraindividuell besser war als das präoperative Ergebnis. Mindestens die Hälfte der Personen waren mit ihrem CI teilweise oder vollständig zufrieden. Der überwiegende Anteil der Personen trug den Sprachprozessor während des gesamten Tages. Das Sprachverstehen in Gruppen, im Störschall, beim Telefonieren, beim Fernsehen und das Musikhören stellte die meisten Personen laut eigener Einschätzung jedoch vor größere Herausforderungen. Auch im Umgang mit dem technischen Zubehör zeigten einige Personen Unterstützungsbedarf. Ein umfassendes Bild über die sozialen Kontakte der befragten Personen mit CI ließ sich aufgrund der vorliegenden Daten nicht abbilden. Es deutete sich jedoch an, dass die Entwicklung des Sprachverstehens mit CI von alleinlebenden Personen als erschwert wahrgenommen wurde. Fazit: Die postoperativen Schwierigkeiten in herau

Published
2023

18. Studies of three-and four-body hypernuclei with heavy-ion beams, nuclear emulsions and machine learning

Author

Saito, T. R., Achenbach, P., Alfaki, H. Alibrahim, Amjad, F., Armstrong, M., Behr, K. -H, Benlliure, J., Brencic, Z., Dickel, T., Drozd, V., Dubey, S., Ekawa, H., Escrig, S., Feijoo-Fontan, M., Gao, Y., Geissel, H., Goldenbaum, F., Gonzalez, A. Grana, Haettner, E., Harakeh, M. N., He, Y., Heggen, H., Hornung, C., Hubbard, N., Itahashi, K., Kalantar-Nayestanaki, N., Kasagi, A., Kavatsyuk, M., Kazantseva, E., Khreptak, A., Knoebel, R., Kollmus, H., Kostyleva, D., Kraft-Bermuth, S., Kurz, N., Liu, E., Minami, S., Morrissey, D. J., Moskal, P., Mukha, I., Muneem, A., Nakagawa, M., Nakazawa, K., Nociforo, C., Ong, H. J., Pietri, S., Pochodzalla, J., Purushothaman, S., Rappold, C., Rocco, E., Rodriguez-Sanchez, J. L., Roy, P., Ruber, Roger, Saito, N., Schadmand, S., Scheidenberger, C., Schwarz, P., Sekiya, R., Serdyuk, V., Skurzok, M., Streicher, B., Sugimoto, S., Suzuki, K., Szczepanczyk, B., Taki, M., Tanaka, Y. K., Tang, X., Tortorelli, N., Vencelj, M., Wang, H., Weber, T., Weick, H., Will, M., Wimmer, K., Yamamoto, A., Yanai, A., Yoshida, J., Yoshimoto, M., Zhao, J., Saito, T. R., Achenbach, P., Alfaki, H. Alibrahim, Amjad, F., Armstrong, M., Behr, K. -H, Benlliure, J., Brencic, Z., Dickel, T., Drozd, V., Dubey, S., Ekawa, H., Escrig, S., Feijoo-Fontan, M., Gao, Y., Geissel, H., Goldenbaum, F., Gonzalez, A. Grana, Haettner, E., Harakeh, M. N., He, Y., Heggen, H., Hornung, C., Hubbard, N., Itahashi, K., Kalantar-Nayestanaki, N., Kasagi, A., Kavatsyuk, M., Kazantseva, E., Khreptak, A., Knoebel, R., Kollmus, H., Kostyleva, D., Kraft-Bermuth, S., Kurz, N., Liu, E., Minami, S., Morrissey, D. J., Moskal, P., Mukha, I., Muneem, A., Nakagawa, M., Nakazawa, K., Nociforo, C., Ong, H. J., Pietri, S., Pochodzalla, J., Purushothaman, S., Rappold, C., Rocco, E., Rodriguez-Sanchez, J. L., Roy, P., Ruber, Roger, Saito, N., Schadmand, S., Scheidenberger, C., Schwarz, P., Sekiya, R., Serdyuk, V., Skurzok, M., Streicher, B., Sugimoto, S., Suzuki, K., Szczepanczyk, B., Taki, M., Tanaka, Y. K., Tang, X., Tortorelli, N., Vencelj, M., Wang, H., Weber, T., Weick, H., Will, M., Wimmer, K., Yamamoto, A., Yanai, A., Yoshida, J., Yoshimoto, M., and Zhao, J.

Abstract

Interests on few-body hypernuclei have been increased by recent results of experiments employing relativistic heavy ion beams. Some of the experiments have revealed that the lifetime of the lightest hypernucleus, hypertriton, is significantly shorter than 263 ps which is expected by considering the hypertriton to be a weakly-bound system. The STAR collaboration has also measured the hypertriton binding energy, and the deduced value is contradicting to its formerly known small binding energy. These measurements have indicated that the fundamental physics quantities of the hypertriton such as its lifetime and binding energy have not been understood, therefore, they have to be measured very precisely. Furthermore, an unprecedented Lambda nn bound state observed by the HypHI collaboration has to be studied in order to draw a conclusion whether or not such a bound state exists. These three-body hypernuclear states are studied by the heavy-ion beam data in the WASA-FRS experiment and by analysing J-PARC E07 nuclear emulsion data with machine learning.

Published
2023
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19. WASA-FRS Experiments in FAIR Phase-0 at GSI

Author

Tanaka, Y.K., primary, Achenbach, P., additional, Alibrahim Alfaki, H., additional, Amjad, F., additional, Armstrong, M., additional, Behr, K.-H., additional, Benlliure, J., additional, Brencic, Z., additional, Dickel, T., additional, Drozd, V., additional, Dubey, S., additional, Ekawa, H., additional, Escrig, S., additional, Feijoo-Fontán, M., additional, Fujioka, H., additional, Gao, Y., additional, Geissel, H., additional, Goldenbaum, F., additional, Graña González, A., additional, Haettner, E., additional, Harakeh, M.N., additional, He, Y., additional, Heggen, H., additional, Hornung, C., additional, Hubbard, N., additional, Itahashi, K., additional, Iwasaki, M., additional, Kalantar-Nayestanaki, N., additional, Kasagi, A., additional, Kavatsyuk, M., additional, Kazantseva, E., additional, Khreptak, A., additional, Kindler, B., additional, Knoebel, R., additional, Kollmus, H., additional, Kostyleva, D., additional, Kraft-Bermuth, S., additional, Kurz, N., additional, Liu, E., additional, Lommel, B., additional, Metag, V., additional, Minami, S., additional, Morrissey, D.J., additional, Moskal, P., additional, Mukha, I., additional, Muneem, A., additional, Nakagawa, M., additional, Nakazawa, K., additional, Nociforo, C., additional, Ong, H.J., additional, Pietri, S., additional, Pochodzalla, J., additional, Purushothaman, S., additional, Rappold, C., additional, Rocco, E., additional, Rodríguez-Sánchez, J.L., additional, Roy, P., additional, Ruber, R., additional, Saito, T.R., additional, Schadmand, S., additional, Scheidenberger, C., additional, Schwarz, P., additional, Sekiya, R., additional, Serdyuk, V., additional, Skurzok, M., additional, Streicher, B., additional, Suzuki, K., additional, Szczepanczyk, B., additional, Tang, X., additional, Tortorelli, N., additional, Vencelj, M., additional, Wang, H., additional, Weber, T., additional, Weick, H., additional, Will, M., additional, Wimmer, K., additional, Yamamoto, A., additional, Yanai, A., additional, Yoshida, J., additional, and Zhao, J., additional

Published
2023
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20. Matter radius of the doubly-magic $^{56}Ni$ measured in a storage ring

Author

von Schmid, M., Aumann, Thomas, Bagchi, S., Bönig, S., Csatlós, M., Dillmann, Iris, Dimopoulou, Christina, Egelhof, P., Eremin, V., Furuno, T., Geissel, H., Gernhäuser, R., Harakeh, M. N., Hartig, A.-L., Ilieva, S., Kalantar-Nayestanaki, N., Kiselev, O., Kollmus, H., Kozhuharov, C., Krasznahorkay, A., Kröll, Th., Kuilman, M., Litvinov, S., Litvinov, Yu. A., Mahjour-Shafiei, M., Mutterer, M., Nagae, D., Najafi, M. A., Nociforo, C., Nolden, Fritz, Popp, U., Rigollet, C., Roth, R., Roy, S., Scheidenberger, C., Steck, M., Streicher, B., Stuhl, L., Thürauf, M., Uesaka, T., Weick, H., Winfield, J. S., Winters, D., Woods, P. J., Yamaguchi, T., Yue, K., Zamora Cardona, J. C., and Zenihiro, J.

Subjects
ddc:530
Abstract

The European physical journal / A 59(4), 83 (2023). doi:10.1140/epja/s10050-023-00967-z, Published by Springer, Heidelberg

Published
2023
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21. 13,14B(n, γ) via Coulomb Dissociation for Nucleosynthesis towards the r-Process

Author

Altstadt, S.G., Adachi, T., Aksyutina, Y., Alcantara, J., Alvarez-Pol, H., Ashwood, N., Atar, L., Aumann, T., Avdeichikov, V., Barr, M., Beceiro, S., Bemmerer, D., Benlliure, J., Bertulani, C.A., Boretzky, K., Borge, M.J.G., Burgunder, G., Caamano, M., Caesar, C., Casarejos, E., Catford, W., Cederkäll, J., Chakraborty, S., Chartier, M., Chulkov, L., Cortina-Gil, D., Datta Pramanik, U., Diaz Fernandez, P., Dillmann, I., Elekes, Z., Enders, J., Ershova, O., Estrade, A., Farinon, F., Fraile, L.M., Freer, M., Freudenberger, M., Fynbo, H.O.U., Galaviz, D., Geissel, H., Gernhäuser, R., Göbel, K., Golubev, P., Gonzalez Diaz, D., Hagdahl, J., Heftrich, T., Heil, M., Heine, M., Heinz, A., Henriques, A., Holl, M., Holt, J.D., Ickert, G., Ignatov, A., Jakobsson, B., Johansson, H.T., Jonson, B., Kalantar-Nayestanaki, N., Kanungo, R., Kelic-Heil, A., Knöbel, R., Kröll, T., Krücken, R., Kurcewicz, J., Kurz, N., Labiche, M., Langer, C., Le Bleis, T., Lemmon, R., Lepyoshkina, O., Machado, J., Marganiec, J., Maroussov, V., Menéndez, J., Mostazo, M., Movsesyan, A., Najafi, M.A., Nilsson, T., Nociforo, C., Panin, V., Perea, A., Pietri, S., Plag, R., Prochazka, A., Rahaman, A., Rastrepina, G., Reifarth, R., Ribeiro, G., Ricciardi, M.V., Rigollet, C., Riisager, K., Röder, M., Rossi, D., Sanchez del Rio, J., Savran, D., Scheit, H., Schwenk, A., Simon, H., Simonis, J., Sonnabend, K., Sorlin, O., Stoica, V., Streicher, B., Taylor, J., Tengblad, O., Terashima, S., Thies, R., Togano, Y., Uberseder, E., Van de Walle, J., Velho, P., Volkov, V., Wagner, A., Wamers, F., Weick, H., Weigand, M., Wheldon, C., Wilson, G., Wimmer, C., Winfield, J.S., Woods, P., Yakorev, D., Zhukov, M.V., Zilges, A., Zoric, M., and Zuber, K.

Published
2014
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22. Decay studies of new isomeric states in No255

Author

Bronis, A., primary, Heßberger, F. P., additional, Antalic, S., additional, Andel, B., additional, Ackermann, D., additional, Heinz, S., additional, Hofmann, S., additional, Khuyagbaatar, J., additional, Kindler, B., additional, Kojouharov, I., additional, Kuusiniemi, P., additional, Leino, M., additional, Lommel, B., additional, Mann, R., additional, Nishio, K., additional, Popeko, A. G., additional, Streicher, B., additional, Sulignano, B., additional, Uusitalo, J., additional, Venhart, M., additional, and Yeremin, A. V., additional

Published
2022
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24. Decay studies of new isomeric states in 255No

Author

Bronis, A., Heßberger, F. P., Antalic, S., Andel, B., Ackermann, D., Heinz, S., Hofmann, S., Khuyagbaatar, J., Kindler, B., Kojouharov, I., Kuusiniemi, P., Leino, M., Lommel, B., Mann, R., Nishio, K., Popeko, A. G., Streicher, B., Sulignano, B., Uusitalo, J., Venhart, M., and Yeremin, A. V.

Subjects
ydinfysiikka
Abstract

The decay of excited states in 255No was investigated by applying the evaporation-residue–conversion-electron correlation technique. Two new isomeric states were observed in 255No together with the previously known one. Excitation energies of the isomeric states were estimated based on the energies of conversion electrons and γ rays from correlation chains. These results were in accord with theoretical calculations based on the mean-field models. A tentative decay scheme of isomeric states in 255No is proposed, and their Nilsson configurations are discussed. The energy decrease of the 11/2−[725] Nilsson level for heavy N=153 isotones as a function of increasing proton number is confirmed. peerReviewed

Published
2022

30. Isomeric states in 253No and 253Fm

Author

Antalic, S., Heßberger, F. P., Ackermann, D., Heinz, S., Hofmann, S., Kalaninová, Z., Kindler, B., Khuyagbaatar, J., Kojouharov, I., Kuusiniemi, P., Leino, M., Lommel, B., Mann, R., Nishio, K., Šáro, Š., Streicher, B., Sulignano, B., and Venhart, M.

Published
2011
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32. Alpha-gamma decay studies of 261Sg and 257Rf

Author

Streicher, B., Heßberger, F. P., Antalic, S., Hofmann, S., Ackermann, D., Heinz, S., Kindler, B., Khuyagbaatar, J., Kojouharov, I., Kuusiniemi, P., Leino, M., Lommel, B., Mann, R., Šáro, Š., Sulignano, B., Uusitalo, J., and Venhart, M.

Published
2010
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33. Decay studies of K isomers in 254No

Author

Heßberger, F. P., Antalic, S., Sulignano, B., Ackermann, D., Heinz, S., Hofmann, S., Kindler, B., Khuyagbaatar, J., Kojouharov, I., Kuusiniemi, P., Leino, M., Lommel, B., Mann, R., Nishio, K., Popeko, A. G., Šáro, Š., Streicher, B., Uusitalo, J., Venhart, M., and Yeremin, A. V.

Published
2010
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37. Identification of a K isomer in 252No

Author

Sulignano, B., Heinz, S., Heßberger, F. P., Hofmann, S., Ackermann, D., Antalic, S., Kindler, B., Kojouharov, I., Kuusiniemi, P., Lommel, B., Mann, R., Nishio, K., Popeko, A. G., Saro, S., Streicher, B., Venhart, M., and Yeremin, A. V.

Published
2007
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38. The reaction 48Ca + 238U → 286112* studied at the GSI-SHIP

Author

Hofmann, S., Ackermann, D., Antalic, S., Burkhard, H. G., Comas, V. F., Dressler, R., Gan, Z., Heinz, S., Heredia, J. A., Heßberger, F. P., Khuyagbaatar, J., Kindler, B., Kojouharov, I., Kuusiniemi, P., Leino, M., Lommel, B., Mann, R., Münzenberg, G., Nishio, K., Popeko, A. G., Saro, S., Schött, H. J., Streicher, B., Sulignano, B., Uusitalo, J., Venhart, M., and Yeremin, A. V.

Published
2007
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39. Sprachverstehen mit Cochlea-Implantat: Einfluss von kortikaler Plastizität und kognitiven Fähigkeiten

Author

Weglage, A, Müller, V, Leschinski, N, Walger, M, Lang-Roth, R, Meister, H, Streicher, B, and Sandmann, P

Subjects
ddc: 610, 610 Medical sciences, Medicine
Abstract

Hintergrund: Bei Patienten mit einem Cochlea-Implantat (CI) zeigt sich eine hohe Variabilität im Versorgungsergebnis. Frühere Ergebnisse lassen vermuten, dass diese Variabilität zumindest teilweise auf Unterschiede hinsichtlich demographischer, audiologischer und Implantat-spezifischer[zum vollständigen Text gelangen Sie über die oben angegebene URL], 23. Jahrestagung der Deutschen Gesellschaft für Audiologie

Published
2020
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40. Alpha-gamma decay studies of 255Rf, 251No and 247Fm

Author

Heßberger, F. P., Hofmann, S., Ackermann, D., Antalic, S., Kindler, B., Kojouharov, I., Kuusiniemi, P., Leino, M., Lommel, B., Mann, R., Nishio, K., Popeko, A. G., Sulignano, B., Saro, S., Streicher, B., Venhart, M., and Yeremin, A. V.

Published
2006
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49. Objektive Maße und Schule

Author

Nekes, S, Lang-Roth, R, Streicher, B, Nekes, S, Lang-Roth, R, and Streicher, B

Published
2019

50. Personality and risk: Beyond daredevils-Risk taking from a temperament perspective

Author

Lauriola, Marco, Weller, Josh, Raue, M., Lermer, E., Streicher, B., and Developmental Psychology

Abstract

We reviewed studies relating risk taking to personality traits. This search long has been elusive due to the large number of definitions of risk and to the variety of personality traits associated with risk taking in different forms and domains. In order to reconcile inconsistent findings, we categorized risk taking measures into self-report behavior inventories, self-report trait-based scales, and choice-based tasks. Likewise, we made a distinction between specific risk-related traits (e.g., sensation seeking, impulsivity) and more general traits (e.g., the Big Five). Sensation seeking aspects like thrill and experience seeking were more strongly associated with recreational and social risks that trigger emotional arousal. Impulsivity was associated with ethical, health safety, gambling, and financial risk taking, due to disregard of future consequences and to lack of self-control. Among the Big Five, extraversion and openness to experience were associated with risk seeking; whereas conscientiousness and agreeableness had more established links with risk aversion. Neuroticism facets, like anxiety and worry, had negative relationships with risk seeking; other facets, like anger and depression, promoted risk seeking. We concluded that the notion of a unidimensional “risk taking” trait seems misleading. The interplay of many traits encompassed in an overarching temperament model best represented personality-risk relations. Positive emotionality traits promoted risky behaviors that confer an emotionally rewarding experience to the person. Negative emotionality traits lead to heightened perceptions of danger, primarily motivating the avoidance of risk. The last disinhibition affected risk taking as a result of differences in self-control control acting upon momentary feelings and in self-interest. Potential applications for practitioners are also discussed.

Published
2018

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