Abstract
Knowledge of neutrino interaction cross sections is an important and necessary ingredient in any neutrino measurement and it is crucial to achieve the precision goals of the neutrino oscillation program, making possible new discoveries like the CP violation in the leptonic sector. We briefly review the major features of the neutrino cross sections in the few-GeV region, paying special attention to nuclear effects.
Highlights
IntroductionRecent interest in neutrino interactions in the few GeV energy region comes from neutrino oscillation experiments and their need to reduce systematic errors
We briefly review the major features of the neutrino cross sections in the few-GeV region, paying special attention to nuclear effects
Recent interest in neutrino interactions in the few GeV energy region comes from neutrino oscillation experiments and their need to reduce systematic errors
Summary
Recent interest in neutrino interactions in the few GeV energy region comes from neutrino oscillation experiments and their need to reduce systematic errors. The hadronic tensor includes a collection of non-leptonic vertices and corresponds to the charged or neutral electroweak transitions of the target to all possible final states It is completely determined by six independent, Lorentz scalar and real, structure functions. In DIS processes, the neutrino scatters off a quark in the nucleon via CC or NC interactions producing a lepton in the final state, together with a hadronic shower. To achieve realistic descriptions of DIS processes, additional effects, like non-vanishing lepton masses, QCD corrections, heavy quark or nuclear and radiative corrections need to be considered. These corrections are typically well understood and do not produce large uncertainties in the cross sections [2]. (νA) data, as these plots suggest, and the size of the nuclear corrections extracted from neutrino data are smaller than those obtained from charged lepton scattering
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