Tuesday, February 5, 2013

1302.0703 (J. Nieves et al.)

Two Particle-Hole Excitations in Charged Current Quasielastic
Antineutrino--Nucleus Scattering
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J. Nieves, I. Ruiz Simo, M. J. Vicente Vacas
We evaluate the quasielastic and multinucleon contributions to the antineutrino nucleus scattering cross section and compare our results with the recent MiniBooNE data. We use a local Fermi gas model that includes RPA correlations and gets the multinucleon part from a systematic many body expansion of the $W$ boson selfenergy in the nuclear medium. The same model had been quite successful for the neutrino cross section and contains no new parameters. We have also analysed the relevance of 2p2h events for the antineutrino energy reconstruction.
View original: http://arxiv.org/abs/1302.0703

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