11/3/2022 0 Comments Emc neutrino![]() In the past, charged lepton scattering ratios of heavier nuclei more » to deuterium have revealed interesting structure such as the EMC effect. The measurement is made for neutrino energies from 2 to 20 GeV. The first such result is an inclusive charged current cross section ratio as a function of energy from and the kinematic quantity Bjorken x for nuclei Pb, Fe, and C relative to plastic scintillator CH. This allows for reduced systematics in the ratio to better see the evolution of the cross section with the size of the nucleus. The MINERvA experiment is designed to measure neutrino cross sections for different nuclei using substantially similar fiducial and tracking environments. We point out that the off-shell properties of the bound nucleon structure function give rise to sizable nuclear effects. There we focus on the derivation of the convolution model. In the large region DIS takes place mainly on a single nucleon. We find that the coherent interaction of q] pairs with nucleons in the nucleus leads to shadowing at small and discuss this effect in detail. In this model mechanism (ii) is responsible for the sea quark content of the more » nucleon while mechanism (i) governs the valence part of the nucleon structure functions. ![]() #Emc neutrino free#We first calculate structure functions of the free nucleon and develop a model for the quark spectral functions. In the laboratory frame it naturally incorporates two mechanisms of DIS: (i) scattering from quarks and antiquarks in the target and (ii) production of quark-antiquark pairs followed by interactions with the target. Our approach is based on a relativistically covariant formalism which uses analytical properties of quark correlators. We present a unified description of nuclear deep-inelastic scattering (DIS) over the whole region 01 of the Bjorken variable. = $$ kinematic regions surveying our knowledge and the current challenges. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |