HADRONICA - Grupo de Física Nuclear y Hadrónica. Universidad de Granada

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Perspectiva en Fisica de Neutrinos 20121123; analisis de su presente y futuro a nivel global y espaniol, realizado por un grupo de fisicos teoricos, fenomenologos y experimentales activos en el campo, pertenecientes a diversas instituciones espaniolas; 23 de noviembre de 2012

[2]  arXiv:1112.2123 [pdf, ps, other]

Title: Meson-exchange currents and quasielastic antineutrino cross sections in the SuperScaling Approximation

Authors: J.E. Amaro, M.B. Barbaro, J.A. Caballero, T.W. Donnelly

Comments: 4 pages, 4 figures

Subjects: Nuclear Theory (nucl-th); High Energy Physics - Phenomenology (hep-ph); Nuclear Experiment (nucl-ex)

Abstract: We evaluate quasielastic double-differential antineutrino cross sections obtained in a phenomenological model based on the superscaling behavior of electron scattering data and estimate the contribution of the vector meson-exchange currents in the 2p-2h sector. We show that the impact of meson-exchange currents for charge-changing antineutrino reactions is much larger than in the neutrino case.

[1]  arXiv:1111.4328 [pdf, ps, other]

Title: Coarse graining Nuclear Interactions

Authors: R. Navarro Perez, J.E. Amaro, E. Ruiz Arriola

Comments: Presented by RNP at the Erice School on Nuclear Physics 2011: From Quarks and Gluons to Hadrons and Nuclei, Erice, Sicily (Italy), 16-24 September 2011, 7 pages, 6 figures

Subjects: Nuclear Theory (nucl-th); High Energy Physics - Phenomenology (hep-ph)

We consider a coarse graining of NN interactions in coordinate space very much in the spirit of the well known Vlowk approach. To this end we sample the interaction at about the minimal de Broglie wavelength probed by NN scattering below pion production threshold. This amounts to provide a simple delta-shell potential plus the standard OPE potential above 2 fm. The possible simplifications in the Nuclear many body problem are discussed.