Nuclear Effects on the Extraction of ${\sin }^2{\theta }_W$

Abstract

We study the impact of nuclear effects on the extraction of the weak-mixing angle ${\sin }^2{\theta }_W$ from deep inelastic (anti-)neutrino-nucleus scattering, with special emphasis on the recently announced NuTeV Collaboration 3$\sigma$ deviation of ${\sin }^2{\theta }_W$ from its standard model value. We have found that nuclear effects, which are very important in electromagnetic deep inelastic scattering (DIS), are quite small in weak charged current DIS. In neutral current DIS processes, which contain the weak mixing angle, we predict that these effects play also an important role and may dramatically affect the value of ${\sin }^2{\theta }_W$ extracted from the experimental data.

arXiv comment15 pages, 3 figures; one figure added, conclusions changed

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Cited by in corpus (22)

• Global Study of Nuclear Structure Functions
• CTEQ6 Parton Distributions with Heavy Quark Mass Effects
• Low Energy Precision Test of Supersymmetry
• Neutrino inclusive inelastic scattering off nuclei
• Charge Symmetry at the Partonic Level
• Electroweak higher-order effects and theoretical uncertainties in deep-inelastic neutrino scattering
• Target Mass Corrections to Electro-Weak Structure Functions and Perturbative Neutrino Cross Sections
• Effect of Asymmetric Strange-Antistrange Sea to the NuTeV Anomaly
• Nucleon sea in the effective chiral quark model
• The NuTeV Anomaly, Neutrino Mixing, and a Heavy Higgs Boson
• Paschos-Wolfenstein Relationship for Nuclei and the NuTeV sin^2(theta_W) Measurement
• Contribution of asymmetric strange-antistrange sea to the Paschos-Wolfenstein relation
• Modified Paschos-Wolfenstein relation and extraction of weak mixing angle sin^2 theta_W
• Recent Developments in Precision Electroweak Physics
• Signals of Unparticles in Low Energy Parity Violation and NuTeV Experiment
• Nuclear modification difference between u_v and d_v distributions and its relation to NuTeV sin^2 theta_W anomaly
• Nuclear effects in F_3 structure function of nucleon
• NuTeV ${\sin }^2{\theta }_{\mathrm{W}}$ anomaly and nuclear parton distributions revisited
• Nuclear shadowing at low Q^2
• Isospin Symmetry Breaking in the Chiral Quark Model
• Nuclear Effects in Deep Inelastic Scattering of Charged-Current Neutrino off Nuclear
• Effect due to charge symmetry violation on the Paschos-Wolfenstein relation