Discovery of 68Br in secondary reactions of radioactive beams
The proton-rich isotope 68Br was discovered in secondary fragmentation reactions of fast radioactive beams. Proton-rich secondary beams of 70,71,72Kr and 70Br, produced at the RIKEN Nishina Center and identified by the BigRIPS fragment separator, impinged on a secondary 9Be target. Unambiguous parti...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2019-08-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269319303922 |
| _version_ | 1818146421168144384 |
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| author | K. Wimmer P. Doornenbal W. Korten P. Aguilera A. Algora T. Ando T. Arici H. Baba B. Blank A. Boso S. Chen A. Corsi P. Davies G. de Angelis G. de France D.T. Doherty J. Gerl R. Gernhäuser D.G. Jenkins S. Koyama T. Motobayashi S. Nagamine M. Niikura A. Obertelli D. Lubos B. Rubio E. Sahin T.Y. Saito H. Sakurai L. Sinclair D. Steppenbeck R. Taniuchi R. Wadsworth M. Zielinska |
| author_facet | K. Wimmer P. Doornenbal W. Korten P. Aguilera A. Algora T. Ando T. Arici H. Baba B. Blank A. Boso S. Chen A. Corsi P. Davies G. de Angelis G. de France D.T. Doherty J. Gerl R. Gernhäuser D.G. Jenkins S. Koyama T. Motobayashi S. Nagamine M. Niikura A. Obertelli D. Lubos B. Rubio E. Sahin T.Y. Saito H. Sakurai L. Sinclair D. Steppenbeck R. Taniuchi R. Wadsworth M. Zielinska |
| author_sort | K. Wimmer |
| collection | DOAJ |
| description | The proton-rich isotope 68Br was discovered in secondary fragmentation reactions of fast radioactive beams. Proton-rich secondary beams of 70,71,72Kr and 70Br, produced at the RIKEN Nishina Center and identified by the BigRIPS fragment separator, impinged on a secondary 9Be target. Unambiguous particle identification behind the secondary target was achieved with the ZeroDegree spectrometer. Based on the expected direct production cross sections from neighboring isotopes, the lifetime of the ground or long-lived isomeric state of 68Br was estimated. The results suggest that secondary fragmentation reactions, where relatively few nucleons are removed from the projectile, offer an alternative way to search for new isotopes, as these reactions populate preferentially low-lying states. Keywords: Radioactive beams, New isotope, Direct reaction |
| first_indexed | 2024-12-11T12:19:05Z |
| format | Article |
| id | doaj.art-4e2674786acd4e918b1a452ec11d98a4 |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-12-11T12:19:05Z |
| publishDate | 2019-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-4e2674786acd4e918b1a452ec11d98a42022-12-22T01:07:34ZengElsevierPhysics Letters B0370-26932019-08-01795266270Discovery of 68Br in secondary reactions of radioactive beamsK. Wimmer0P. Doornenbal1W. Korten2P. Aguilera3A. Algora4T. Ando5T. Arici6H. Baba7B. Blank8A. Boso9S. Chen10A. Corsi11P. Davies12G. de Angelis13G. de France14D.T. Doherty15J. Gerl16R. Gernhäuser17D.G. Jenkins18S. Koyama19T. Motobayashi20S. Nagamine21M. Niikura22A. Obertelli23D. Lubos24B. Rubio25E. Sahin26T.Y. Saito27H. Sakurai28L. Sinclair29D. Steppenbeck30R. Taniuchi31R. Wadsworth32M. Zielinska33Department of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan; RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan; Corresponding author.RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, JapanIRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, FranceComisión Chilena de Energía Nuclear, Casilla 188-D, Santiago, ChileInstituto de Fisica Corpuscular, CSIC-Universidad de Valencia, E-46071 Valencia, Spain; Institute of Nuclear Research of the Hungarian Academy of Sciences, Debrecen H-4026, HungaryDepartment of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, JapanGSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany; Justus-Liebig-Universität Giessen, D-35392 Giessen, GermanyRIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, JapanCENBG, CNRS/IN2P3, Université de Bordeaux F-33175 Gradignan, FranceIstituto Nazionale di Fisica Nucleare, Sezione di Padova, I-35131 Padova, ItalyRIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, JapanIRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, FranceDepartment of Physics, University of York, YO10 5DD York, United KingdomIstituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, I-35020 Legnaro, ItalyGANIL, CEA/DSM-CNRS/IN2P3, F-14076 Caen Cedex 05, FranceIRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, FranceGSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, GermanyPhysik Department, Technische Universität München, D-85748 Garching, GermanyDepartment of Physics, University of York, YO10 5DD York, United KingdomDepartment of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, JapanRIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, JapanDepartment of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, JapanDepartment of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, JapanIRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France; RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, JapanPhysik Department, Technische Universität München, D-85748 Garching, GermanyInstituto de Fisica Corpuscular, CSIC-Universidad de Valencia, E-46071 Valencia, SpainDepartment of Physics, University of Oslo, PO Box 1048 Blindern, N-0316 Oslo, NorwayDepartment of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, JapanDepartment of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan; RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, JapanDepartment of Physics, University of York, YO10 5DD York, United KingdomRIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, JapanDepartment of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, JapanDepartment of Physics, University of York, YO10 5DD York, United KingdomIRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, FranceThe proton-rich isotope 68Br was discovered in secondary fragmentation reactions of fast radioactive beams. Proton-rich secondary beams of 70,71,72Kr and 70Br, produced at the RIKEN Nishina Center and identified by the BigRIPS fragment separator, impinged on a secondary 9Be target. Unambiguous particle identification behind the secondary target was achieved with the ZeroDegree spectrometer. Based on the expected direct production cross sections from neighboring isotopes, the lifetime of the ground or long-lived isomeric state of 68Br was estimated. The results suggest that secondary fragmentation reactions, where relatively few nucleons are removed from the projectile, offer an alternative way to search for new isotopes, as these reactions populate preferentially low-lying states. Keywords: Radioactive beams, New isotope, Direct reactionhttp://www.sciencedirect.com/science/article/pii/S0370269319303922 |
| spellingShingle | K. Wimmer P. Doornenbal W. Korten P. Aguilera A. Algora T. Ando T. Arici H. Baba B. Blank A. Boso S. Chen A. Corsi P. Davies G. de Angelis G. de France D.T. Doherty J. Gerl R. Gernhäuser D.G. Jenkins S. Koyama T. Motobayashi S. Nagamine M. Niikura A. Obertelli D. Lubos B. Rubio E. Sahin T.Y. Saito H. Sakurai L. Sinclair D. Steppenbeck R. Taniuchi R. Wadsworth M. Zielinska Discovery of 68Br in secondary reactions of radioactive beams Physics Letters B |
| title | Discovery of 68Br in secondary reactions of radioactive beams |
| title_full | Discovery of 68Br in secondary reactions of radioactive beams |
| title_fullStr | Discovery of 68Br in secondary reactions of radioactive beams |
| title_full_unstemmed | Discovery of 68Br in secondary reactions of radioactive beams |
| title_short | Discovery of 68Br in secondary reactions of radioactive beams |
| title_sort | discovery of 68br in secondary reactions of radioactive beams |
| url | http://www.sciencedirect.com/science/article/pii/S0370269319303922 |
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