2012/03/01 by W. Sobków
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Asymmetry #Elastic scattering #Fermion #Muon #Muon neutrino #Neutrino #Neutrino Physics Research #Neutrino detector #Neutrino oscillation #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Proton #Quantum mechanics #Recoil #Scattering #hep-ph
paper · pdf · doi:10.1016/j.nuclphysb.2013.01.002
published as Nuclear Physics B 869, 440 (2013) · 11 pages, 5 eps figures
arxiv created 2012/03/01 · openalex publication_date 2013/01/09 · arxiv updated 2015/06/04 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
In this paper, we analyze the elastic scattering of the muon neutrino beam on the polarized proton target (PPT), and predict how the existence of CP-violating phase between the complex vector V and axial A couplings of the left-chirality neutrinos affects the azimuthal dependence of the differential cross section. The neutrinos are assumed to be Dirac fermions with non-zero mass. We show that the azimuthal asymmetry of recoil protons does not depend on the neutrino mass and does not vanish even if βVA = 0. The CP-breaking phase βVA could be detected by measuring the maximal asymmetry of the differential cross section. We also indicate the possibility of using the PPT to distinguish the detector background from the neutrino interactions. Our analysis is model-independent and the results are presented in a limit of infinitesimally small neutrino mass.