Neutron-driven collectivity in light tin isotopes: Proton inelastic scattering from 104Sn

Inelastic scattering cross sections to individual bound excited states of 104Sn were measured at 150 MeV/u beam energy and analyzed to evaluate the contribution of neutron and proton collectivity. State-of-the-art Quasi-Particle Random Phase Approximation (QRPA) with the D1M Gogny interaction reprod...

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Main Authors: A. Corsi, S. Boissinot, A. Obertelli, P. Doornenbal, M. Dupuis, F. Lechaftois, M. Matsushita, S. Péru, S. Takeuchi, H. Wang, N. Aoi, H. Baba, P. Bednarczyk, M. Ciemala, A. Gillibert, T. Isobe, A. Jungclaus, V. Lapoux, J. Lee, M. Martini, K. Matsui, T. Motobayashi, D. Nishimura, S. Ota, E. Pollacco, H. Sakurai, C. Santamaria, Y. Shiga, D. Sohler, D. Steppenbeck, R. Taniuchi
Format: Article
Language:English
Published: Elsevier 2015-04-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269315001811
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author A. Corsi
S. Boissinot
A. Obertelli
P. Doornenbal
M. Dupuis
F. Lechaftois
M. Matsushita
S. Péru
S. Takeuchi
H. Wang
N. Aoi
H. Baba
P. Bednarczyk
M. Ciemala
A. Gillibert
T. Isobe
A. Jungclaus
V. Lapoux
J. Lee
M. Martini
K. Matsui
T. Motobayashi
D. Nishimura
S. Ota
E. Pollacco
H. Sakurai
C. Santamaria
Y. Shiga
D. Sohler
D. Steppenbeck
R. Taniuchi
author_facet A. Corsi
S. Boissinot
A. Obertelli
P. Doornenbal
M. Dupuis
F. Lechaftois
M. Matsushita
S. Péru
S. Takeuchi
H. Wang
N. Aoi
H. Baba
P. Bednarczyk
M. Ciemala
A. Gillibert
T. Isobe
A. Jungclaus
V. Lapoux
J. Lee
M. Martini
K. Matsui
T. Motobayashi
D. Nishimura
S. Ota
E. Pollacco
H. Sakurai
C. Santamaria
Y. Shiga
D. Sohler
D. Steppenbeck
R. Taniuchi
author_sort A. Corsi
collection DOAJ
description Inelastic scattering cross sections to individual bound excited states of 104Sn were measured at 150 MeV/u beam energy and analyzed to evaluate the contribution of neutron and proton collectivity. State-of-the-art Quasi-Particle Random Phase Approximation (QRPA) with the D1M Gogny interaction reproduces the experimental proton collectivity and our inelastic scattering cross sections once used as input for a reaction calculation together with the Jeukenne–Lejeune–Mahaux (JLM) potentials. Experimental inelastic scattering cross section decreases by 40(24)% from 112Sn to 104Sn. The present work shows that (i) proton and neutron collectivities are proportional over a large range of tin isotopes (including 104Sn), as is typical for isoscalar excitations, and (ii) the neutron collectivity dominates. It suggests that the plateau in the mass range A=106–112 displayed by E2 transition probabilities is driven by neutron collectivity. Keywords: Collectivity, Inelastic scattering, Gamma spectroscopy
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spelling doaj.art-ef6e9e98f99545c592de0cbbd39dd1962022-12-21T18:14:29ZengElsevierPhysics Letters B0370-26932015-04-01743451455Neutron-driven collectivity in light tin isotopes: Proton inelastic scattering from 104SnA. Corsi0S. Boissinot1A. Obertelli2P. Doornenbal3M. Dupuis4F. Lechaftois5M. Matsushita6S. Péru7S. Takeuchi8H. Wang9N. Aoi10H. Baba11P. Bednarczyk12M. Ciemala13A. Gillibert14T. Isobe15A. Jungclaus16V. Lapoux17J. Lee18M. Martini19K. Matsui20T. Motobayashi21D. Nishimura22S. Ota23E. Pollacco24H. Sakurai25C. Santamaria26Y. Shiga27D. Sohler28D. Steppenbeck29R. Taniuchi30CEA, Centre de Saclay, IRFU/Service de Physique Nucléaire, F-91191 Gif-sur-Yvette, France; Corresponding author.CEA, Centre de Saclay, IRFU/Service de Physique Nucléaire, F-91191 Gif-sur-Yvette, FranceCEA, Centre de Saclay, IRFU/Service de Physique Nucléaire, F-91191 Gif-sur-Yvette, FranceRIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, JapanCEA/DAM/DIF, 91297 Arpajon, FranceCEA/DAM/DIF, 91297 Arpajon, FranceCNS, The University of Tokyo, RIKEN Campus, Wako, Saitama 351-0198, JapanCEA/DAM/DIF, 91297 Arpajon, FranceRIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, JapanRIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan; State Key Laboratory, Peking University, Beijing, PR ChinaRCNP Osaka University, Ibaraki, Osaka 567-0047, JapanRIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, JapanThe Niewodniczanski Institute of Nuclear Physics, Krakow, PolandThe Niewodniczanski Institute of Nuclear Physics, Krakow, Poland; Grand Accélérateur National d'Ions Lourds (GANIL), CEA/DSM-CNRS/IN2P3, F-14076 Caen Cedex 5, FranceCEA, Centre de Saclay, IRFU/Service de Physique Nucléaire, F-91191 Gif-sur-Yvette, FranceRIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, JapanInstituto de Estructura de la Materia, CSIC, E-28006 Madrid, SpainCEA, Centre de Saclay, IRFU/Service de Physique Nucléaire, F-91191 Gif-sur-Yvette, FranceRIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, JapanDepartment of Physics and Astronomy, Ghent University, Proeftuinstraat 86, B-9000, Gent, BelgiumDepartment of Physics, University of Tokyo, Bunkyo, Tokyo 113-0033, JapanRIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, JapanDepartment of Physics, Tokyo University of Science, Noda, Chiba 278-8510, JapanCNS, The University of Tokyo, RIKEN Campus, Wako, Saitama 351-0198, JapanCEA, Centre de Saclay, IRFU/Service de Physique Nucléaire, F-91191 Gif-sur-Yvette, FranceRIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan; Department of Physics, University of Tokyo, Bunkyo, Tokyo 113-0033, JapanCEA, Centre de Saclay, IRFU/Service de Physique Nucléaire, F-91191 Gif-sur-Yvette, FranceDepartment of Physics, Rikkyo University, Toshima, Tokyo 172-8501, JapanInstitute for Nuclear Research, Debrecen, HungaryCNS, The University of Tokyo, RIKEN Campus, Wako, Saitama 351-0198, JapanDepartment of Physics, University of Tokyo, Bunkyo, Tokyo 113-0033, JapanInelastic scattering cross sections to individual bound excited states of 104Sn were measured at 150 MeV/u beam energy and analyzed to evaluate the contribution of neutron and proton collectivity. State-of-the-art Quasi-Particle Random Phase Approximation (QRPA) with the D1M Gogny interaction reproduces the experimental proton collectivity and our inelastic scattering cross sections once used as input for a reaction calculation together with the Jeukenne–Lejeune–Mahaux (JLM) potentials. Experimental inelastic scattering cross section decreases by 40(24)% from 112Sn to 104Sn. The present work shows that (i) proton and neutron collectivities are proportional over a large range of tin isotopes (including 104Sn), as is typical for isoscalar excitations, and (ii) the neutron collectivity dominates. It suggests that the plateau in the mass range A=106–112 displayed by E2 transition probabilities is driven by neutron collectivity. Keywords: Collectivity, Inelastic scattering, Gamma spectroscopyhttp://www.sciencedirect.com/science/article/pii/S0370269315001811
spellingShingle A. Corsi
S. Boissinot
A. Obertelli
P. Doornenbal
M. Dupuis
F. Lechaftois
M. Matsushita
S. Péru
S. Takeuchi
H. Wang
N. Aoi
H. Baba
P. Bednarczyk
M. Ciemala
A. Gillibert
T. Isobe
A. Jungclaus
V. Lapoux
J. Lee
M. Martini
K. Matsui
T. Motobayashi
D. Nishimura
S. Ota
E. Pollacco
H. Sakurai
C. Santamaria
Y. Shiga
D. Sohler
D. Steppenbeck
R. Taniuchi
Neutron-driven collectivity in light tin isotopes: Proton inelastic scattering from 104Sn
Physics Letters B
title Neutron-driven collectivity in light tin isotopes: Proton inelastic scattering from 104Sn
title_full Neutron-driven collectivity in light tin isotopes: Proton inelastic scattering from 104Sn
title_fullStr Neutron-driven collectivity in light tin isotopes: Proton inelastic scattering from 104Sn
title_full_unstemmed Neutron-driven collectivity in light tin isotopes: Proton inelastic scattering from 104Sn
title_short Neutron-driven collectivity in light tin isotopes: Proton inelastic scattering from 104Sn
title_sort neutron driven collectivity in light tin isotopes proton inelastic scattering from 104sn
url http://www.sciencedirect.com/science/article/pii/S0370269315001811
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