skip to main content

Title: Determination of sin{sup 2}θ{sub W} using ν (ν{sup ¯})-nucleus scattering

We have studied nonisoscalarity and medium effects in the extraction of weak mixing angle using Paschos and Wolfenstein relation in the iron nucleus. Paschos and Wolfenstein(PW) relation is valid for an isoscalar target. We have modified the PW relation for nonisoscalar target as well as incorporated the medium effects like Pauli blocking, Fermi motion, nuclear binding energy and pion rho cloud contributions. In our calculations we have used the relativistic nuclear spectral function which includes nucleon correlations. Finally local density approximation is applied to translate the numerical results to the finite nuclei. We have studied the dependence of sin{sup 2}θ{sub W} on Bjorken variables x and y, four momentum transfer square (Q{sup 2}), energy of the neutrino and antineutrino, and effect of excess neutrons over protons in the nuclear target.
Authors:
;  [1] ;  [2]
  1. Department of Physics, Aligarh Muslim University, Aligarh-202 002 (India)
  2. Dipartimento di Fisica, Universitá degli studi di Trento Via Sommarive 14, Povo (Trento) I-38123 Italy (Italy)
Publication Date:
OSTI Identifier:
22391835
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1663; Journal Issue: 1; Conference: NuINT12: 8. International Workshop on Neutrino-Nucleus Internactions in the Few-GeV Region, Rio de Janeiro (Brazil), 22-27 Oct 2012; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ANTINEUTRINOS; APPROXIMATIONS; BINDING ENERGY; ELASTIC SCATTERING; FOUR MOMENTUM TRANSFER; INELASTIC SCATTERING; NEUTRINO-NUCLEON INTERACTIONS; NEUTRONS; PIONS; PROTONS; RELATIVISTIC RANGE; SPECTRAL FUNCTIONS; WEINBERG ANGLE