Pygmy Gamow-teller Resonance in the $N=50$ Region: new Evidence From Staggering of $\beta$-delayed Neutron-emission Probabilities Observed With Tetra
| Autor: | S. Franchoo, E. A. Kuznetsova, Ruohong Li, I. Matea, D. A. Testov, I. Stefan, F. Ibrahim, Daisuke Suzuki, V. Smirnov, H. Pai, D. Verney, E. A. Sokol, F. Didierjean, B. Roussière, Yu. Penionzhkevich |
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| Přispěvatelé: | Institut de Physique Nucléaire d'Orsay (IPNO), 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), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), 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 de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | 8th International Symposium on Exotic Nuclei 8th International Symposium on Exotic Nuclei, Sep 2016, Kazan, Russia. pp.292-297, ⟨10.1142/9789813226548_0045⟩ |
| DOI: | 10.1142/9789813226548_0045⟩ |
| Popis: | International audience; We report on the Pn measurements of the 82,83,84Ga (N = 51, 52, 53) precursors performed in one single experiment using the 3He neutron-counter TETRA at the ALTO facility in Orsay. Altogether our results for the three A = 82, 83 and 84 Ga isotopes point towards a sizable Pn staggering in the N = 50 region, similar to the one already known in the N = 28 region, hinting at a similar mechanism. We will discuss the possible microscopic origin of this behavior i.e. the existence in the N = 50 region of a low-lying component of the so called Pygmy Gamow-Teller Resonance, already well established at Z = 36, and persisting towards 78Ni. |
| Databáze: | OpenAIRE |
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