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16 results on '"Experiment-Nucl"'

14. Break-Up Reactions of 6Li, 7Be and 8B

Author

Yu. M. Sereda, D. T. Aznabayev, Yu. E. Penionzhkevich, V. V. Ostashko, V. A. Maslov, C. Borcea, F. Saillant, A. G. Artukh, B. M. Hue, S. Calinescu, S. M. Lukyanov, A. N. Vorontsov, B. Erdemchimeg, Kairat Kuterbekov, F. Rotaru, S. A. Klygin, G. A. Kononenko, T. Issatayev, A. M. Kabyshev, Yu. G. Sobolev, M. A. Naumenko, T. D. Thiep, K. Mendibayev, Horia Hulubei National Institute of Physics and Nuclear Engineering (NIPNE), IFIN-HH, Grand Accélérateur National d'Ions Lourds (GANIL), and 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)

Subjects
Materials science, Spectrometer, Physics::Instrumentation and Detectors, Detector, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Particle identification, law.invention, Telescope, Fragmentation (mass spectrometry), Experiment-Nucl, law, Theory-Nucl, Atomic physics, Nuclear Experiment, Beam (structure)
Abstract

International audience; Secondary beams (6Li,7Be,8B) obtained by separation of fragmentation products of 15N beam (50 A MeV) impinging on a Be target using COMBAS spectrometer. The secondary products will be detected by a telescope consisting of five Si-detectors (dE) and CsI(Tl) detector (Er). By the dE-E method, the telescope allowed us to achieve unambiguous particle identification originating from incident secondary beams as well as theirs reaction products resulting from reactions with one of Si detectors chosen as the target. Accordingly, break-up reactions of 6Li, 7Be and 8B were studied in this experiment.

Published
2019
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15. Cross-Shell States in 17,19C Populated via One-Neutron Knockout Reactions

Author

Jongmin Lee, Yosuke Kondo, T. Kubo, N. L. Achouri, T. Kobayashi, Nagao Kobayashi, Hiroshi Suzuki, Satoshi Takeuchi, H. Baba, S. K. Kim, H. Sato, Noritsugu Nakatsuka, Ryuki Tanaka, Jongwon Hwang, Marine Vandebrouck, Naoki Fukuda, Kenichiro Yoneda, T. Motobayashi, D. Kanno, Hideaki Otsu, A. G. Tuff, T. Isobe, H. Takeda, S. Nishi, Takashi Nakamura, Thomas Aumann, K. Muto, T. Murakami, Julien Gibelin, Daichi Murai, K. Takahashi, D. Kameda, S. Ogoshi, S. Leblond, T. Nakashima, N. A. Orr, Franck Delaunay, F. M. Marqués, Y. Shimizu, Y. Satou, R. Minakata, A. Navin, Pieter Doornenbal, N. Inabe, Y. Togano, Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Grand Accélérateur National d'Ions Lourds (GANIL), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Normandie Université (NU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and 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)

Subjects
Physics, Experiment-Nucl, 010308 nuclear & particles physics, Nuclear Theory, 0103 physical sciences, Shell (structure), Neutron, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment, 010306 general physics, 01 natural sciences, Molecular physics
Abstract

International audience; Theoretical description of cross-shell states, whose parity is opposite to that of the ground state, in light neutron-rich nuclei represents a difficult task, since they involve transitions encompassing two major shells on a proton-neutron asymmetric system. More specifically obtaining reliable effective interactions in the nuclear shell model for such transitions is a challenge. Scarcity of experimental constraints may be additionally responsible to this. An experimental attempt to furnish new spectroscopic information on cross-shell states in neutron-rich carbon isotopes, ^17C and ^19C, is described, and the applicability of modern shell-model interactions in describing relevant spectroscopy is discussed. Brief description of the experiment utilizing RIKEN-RIBF, SAMURAI spectrometer is provided.

Published
2018
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16. Fission and Quasi-Fission Dynamics Near the Coulomb Barrier: $\gamma$ Rays as Probe for their Timescale

Author

I. M. Itkis, C. Petrone, I. M. Harca, N. I. Kozulina, J. Wilson, P. K. Rath, A. Pulcini, B. de Canditiis, G. Sposito, O. Dorvaux, E. M. Kozulin, D. Quero, O. Stezowski, Wladyslaw Henryk Trzaska, C. Schmitt, I. V. Kolesov, A. Di Nitto, S. Calinescu, G. La Rana, F. Davide, S. Brambilla, E. Saveleva, F. Camera, M. Ashaduzzaman, V. V. Kirakosyan, A. Bracco, M. Ciemala, G. N. Knyazheva, S. N. Dmitriev, K. V. Novikov, Emanuele Vardaci, I. Matea, C. Borcea, A. Maj, Istituto Nazionale di Fisica Nucleare, Sezione di Napoli (INFN, Sezione di Napoli), Istituto Nazionale di Fisica Nucleare (INFN), Horia Hulubei National Institute of Physics and Nuclear Engineering (NIPNE), IFIN-HH, Istituto Nazionale di Fisica Nucleare, Sezione di Milano (INFN), Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences, 31-342 Krakow, Poland, Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), 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), Grand Accélérateur National d'Ions Lourds (GANIL), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Penionzhkevich, Yu E, Yu G Sobolev, Pulcini, A., Vardaci, E., Kozulin, E. M., Ashaduzzaman, M., Borcea, C., Bracco, A., Brambilla, S., Calinescu, S., Camera, F., Ciemala, M., Davide, F., de Canditiis, B., Di Nitto, A., Dmitriev, S., Dorvaux, O., Harca, I. M., Itkis, I. M., Kirakosyan, V. V., Knyazheva, G., Kozulina, N., Kolesov, I. V., La Rana, G., Maj, A., Matea, I., Novikov, K., Petrone, C., Quero, D., Rath, P. K., Saveleva, E., Schmitt, C., Sposito, G., Stezowski, O., Trzaska, W. H., Wilson, J., Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), 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), 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), Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics, Fission, Experiment-Nucl, Dynamics (mechanics), Theory-Nucl, Coulomb barrier, Atomic physics, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract

International audience; The overlap in the mass symmetric region of the reaction products from fusion-fission and quasi-fission complicates the assignment of symmetric events to complete fusion on the basis of the mass distribution alone. Additional observables, besides mass distribution, should be used. The method proposed here relies on the fact that fusion-fission and quasifission are characterized by a different timescale. Within this framework we performed a detailed study to find out if timescales can be probed via angular momentum as measured via γ rays multiplicity. The proof of principle was carried out by measuring the γ rays in coincidence with two fragments in the reaction 32S + 197Au at beam energy near the Coulomb barrier. The experiment has been performed at the Tandem ALTO facility at IPN Orsay using a detection setup consisting of ORGAM and PARIS γ detector arrays coupled with the CORSET time-of-flight spectrometer. Preliminary results on the sensitivity of this method to distinguish reaction channels with different dynamics are discusses.

Published
2018
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