Tuesday, July 16, 2013

1307.3879 (X. Roca-Maza et al.)

Nuclear Symmetry Energy: constraints from Giant Quadrupole Resonances
and Parity Violating Electron Scattering

X. Roca-Maza, B. K. Agrawal, P. F. Bortignon, M. Brenna, Li-Gang Cao, M. Centelles, G. Colò, N. Paar, X. Viñas, D. Vretenar, M. Warda
Experimental and theoretical efforts are being devoted to the study of observables that can shed light on the properties of the nuclear symmetry energy. We present our new results on the excitation energy [X. Roca-Maza et al., Phys. Rev. C 87, 034301 (2013)] and polarizability of the Isovector Giant Quadrupole Resonance (IVGQR), which has been the object of new experimental investigation [S. S. Henshaw et al., Phys. Rev. Lett. 107, 222501 (2011)]. We also present our theoretical analysis on the parity violating asymmetry at the kinematics of the Lead Radius Experiment [S. Abrahamyan et al. (PREx Collaboration), Phys. Rev. Lett. 108, 112502 (2012)] and highlight its relation with the density dependence of the symmetry energy [X. Roca-Maza et al., Phys. Rev. Lett. 106, 252501 (2011)].
View original: http://arxiv.org/abs/1307.3879

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