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

AutorCorsi, A.; Boissinot, S.; Obertelli, A.; Doornenbal, P.; Dupuis, M.; Lechaftois, F.; Matsushita, M.; Péru, S.; Takeuchi, S.; Wang, H.; Aoi, N.; Baba, H.; Bednarczyk, P.; Ciemala, M.; Gillibert, A.; Isobe, T.; Jungclaus, Andrea ; Lapoux, V.; Lee, J.; Martini, M.; Matsui, K.; Motobayashi, T.; Nishimura, D.; Ota, S.; Pollacco, E.; Sakurai, H.; Santamaria, C.; Shiga, Y.; Sohler, D.; Steppenbeck, D.; Taniuchi, R.
Palabras claveGamma spectroscopy
Inelastic scattering
Fecha de publicación12-mar-2015
CitaciónPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 743: 451- 455 (2015)
Resumen© 2015 The Authors. 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.
Descripción5 pags.; 5 figs.; 1 tab.; Open Access funded by Creative Commons Atribution Licence 4.0
Versión del editorhttp://dx.doi.org/10.1016/j.physletb.2015.03.018
Identificadoresdoi: 10.1016/j.physletb.2015.03.018
issn: 0370-2693
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