Contribution of two particle-two hole final states to the nuclear response
Nuclear Theory
2015-08-26 v2
Abstract
The excitation of two particle-two hole final states in neutrino-nucleus scattering has been advocated by many authors as the source of the excess cross section observed by the MiniBooNE Collaboration in the quasi elastic sector. We analyse the mechanisms leading to the appearance of these final states, and illustrate their significance through the results of accurate calculations of the nuclear electromagnetic response in the transverse channel. A novel approach, allowing for a consistent treatment of the amplitudes involving one- and two-nucleon currents in the kinematical region in which the non relativistic approximation breaks down, is outlined.
Keywords
Cite
@article{arxiv.1502.00887,
title = {Contribution of two particle-two hole final states to the nuclear response},
author = {Omar Benhar and Alessandro Lovato and Noemi Rocco},
journal= {arXiv preprint arXiv:1502.00887},
year = {2015}
}
Comments
Physical Review C, in press. arXiv admin note: text overlap with arXiv:1312.1210