Signals of Unparticles in Low Energy Parity Violation and NuTeV Experiment

Abstract

We have studied the possible signals of unparticle in atomic parity violation(APV) along an isotope chain and in the NuTeV experiment. The effects of unparticle physics could be observed in APV, if the uncertainty in relative neutron/proton radius shift $\delta (\Delta \frac{R_N}{R_P})$ is less than a few times $10^{-4}$ by measuring the parity violating electron scattering. The constraints imposed by NuTeV experiment on unparticle physics are discussed in detail. If the NuTeV results are confirmed by future experiments, we suggest that unparticle could account for a part of NuTeV anomaly. There exist certain regions for the unparticle parameters (${\Lambda }_{\mathcal{U}}$, $d_{\mathcal{U}}$, $c_{V\mathcal{U}}$ and $c_{A\mathcal{U}}$), where the NuTeV discrepancy could be completely explained by unparticle effects and the strange quark asymmetry, even with or without the contributions from the isoscalarity violation etc. It is remarkable that these parameter regions are consistent with the constraints from $b\to s\gamma$

arXiv comment19 pages, 7 figures

References in corpus (42)

• The Cosmological Parameters 2006
• Big-Bang nucleosynthesis (Particle Data Group mini-review)
• Unparticle Physics
• A Precise Determination of Electroweak Parameters in Neutrino-Nucleon Scattering
• Measurement of the 6S-7S transition polarizablility in atomic cesium and an improved test of the standard model
• Another Odd Thing About Unparticle Physics
• Parity Violating Measurements of Neutron Densities
• Precise Measurement of Dimuon Production Cross-Sections in muon neutrino Fe and muon antineutrino Fe Deep Inelastic Scattering at the Tevatron
• Collider signals in unparticle physics
• The Quark/Antiquark Asymmetry of the Nucleon Sea
• Old and new physics interpretations of the NuTeV anomaly
• Deconstruction of Unparticles
• Bounds on Unparticles from the Higgs Sector
• A new global analysis of deep inelastic scattering data
• Constraining Unparticle Physics with Cosmology and Astrophysics
• Low-Energy Parity-Violation and New Physics
• On the Effect of Asymmetric Strange Seas and Isospin-Violating Parton Distribution Functions on sin2thetaW Measured at NuTeV
• Nuclear Antishadowing in Neutrino Deep Inelastic Scattering
• Interactions of Unparticles with Standard Model Particles
• Bounds on Unparticles Couplings to Electrons: from Electron g-2 to Positronium Decays
• Unparticle Physics Effects on D0-anti-D0 Mixing
• Atomic Parity Nonconservation: Electroweak Parameters and Nuclear Structure
• Some Phenomenologies of Unparticle Physics
• Unparticle physics on direct CP violation
• B \to K(K^*) missing energy in Unparticle physics
• The Parton Structure of the Nucleon and Precision Determination of the Weinberg Angle in Neutrino Scattering
• Constraints On Unparticle Physics In Electroweak Gauge Boson Scattering
• Lepton Flavour Violation in Unparticle Physics
• Neutrino Dimuon Production and the Strangeness Asymmetry of the Nucleon
• Unparticle Physics in DIS
• Unparticle physics at hadron collider via dilepton production
• Effect of Asymmetric Strange-Antistrange Sea to the NuTeV Anomaly
• Unparticles and Muon Decay
• The quark - antiquark asymmetry of the strange sea of the nucleon
• Charge Symmetry Violating Contributions to Neutrino Reactions
• Paschos-Wolfenstein Relationship for Nuclei and the NuTeV sin^2(theta_W) Measurement
• Contribution of asymmetric strange-antistrange sea to the Paschos-Wolfenstein relation
• Unraveling unparticles through violation of atomic parity and rare beauty
• Atomic parity nonconservation and neutron radii in cesium isotopes
• Lepton flavor violating $\mu \to e\gamma$ and $\mu -e$ conversion in unparticle physics
• Nuclear Effects on the Extraction of ${\sin }^2{\theta }_W$
• Constraints on Unparticle Interaction from $b\to s\gamma$

Cited by in corpus (20)

• Unparticle physics effects in B_s mixing
• Unparticles-Higgs Interplay
• Long-range Electron Spin-spin Interactions from Unparticle Exchange
• SUSY Unparticle and Conformal Sequestering
• Contact Interactions and Resonance-Like Physics at Present and Future Colliders from Unparticles
• Unparticles at heavy flavour scales: CP violating phenomena
• Unraveling unparticles through violation of atomic parity and rare beauty
• Unparticle physics at the photon collider
• Cosmological Constraints on Unparticles as Continuous Mass Scalars
• Unparticle Physics and A_{FB}^b on the Z pole
• Unparticle decay of neutrinos and it's effect on ultra high energy neutrinos
• The large CP phase in B(s) - anti-B(s) mixing and Unparticle Physics
• W-pair production in Unparticle Physics
• Unparticle physics effects in (Lambda_b -> Lambda + missing energy) processes
• Unparticle-Higgs Mixing: MSW Resonances, See-saw Mechanism and Spinodal Instabilities
• Unsterile-Active Neutrino Mixing: Consequences on Radiative Decay and Bounds from the X-ray Background
• Isospin Symmetry Breaking in the Chiral Quark Model
• Oscillation dynamics of active-unsterile neutrino mixing in a $2+\tilde{1}$ mixing scheme
• Collider Effects of Unparticle Interactions in Multiphoton Signals
• On Unparticles and K+ to pi+ Missing Energy