Supersymmetric Contributions to Weak Decay Correlation Coefficients

Abstract

We study supersymmetric contributions to correlation coefficients that characterize the spectral shape and angular distribution for polarized muon- and beta-decays. In the minimal supersymmetric Standard Model (MSSM), one-loop box graphs containing superpartners can give rise to non-(V-A)x(V-A) four fermion operators in the presence of left-right or flavor mixing between sfermions. We analyze the present phenomenological constraints on such mixing and determine the range of allowed contributions to the weak decay correlation coefficients. We discuss the prospective implications for future muon- and beta-decay experiments, and argue that they may provide unique probes of left-right mixing in the first generation scalar fermion sector.

Revised version - to appear in Phys.Rev.D

References in corpus (38)

• Final Report of the Muon E821 Anomalous Magnetic Moment Measurement at BNL
• Electric dipole moments as probes of new physics
• Lepton-Flavor Violation via Right-Handed Neutrino Yukawa Couplings in Supersymmetric Standard Model
• Aspects of Split Supersymmetry
• New Limit for the Family-Number Non-conserving Decay mu+ to e+_gamma
• The Muon Anomalous Magnetic Moment: A Harbinger For "New Physics"
• The Soft Supersymmetry-Breaking Lagrangian: Theory and Applications
• Tests of the standard electroweak model in beta decay
• Muon anomalous magnetic dipole moment in supersymmetric theories
• Measurement of the neutron lifetime using a gravitational trap and a low-temperature Fomblin coating
• Complete set of Feynman rules for the MSSM -- ERRATUM
• Direct, Indirect and Collider Detection of Neutralino Dark Matter In SUSY Models with Non-universal Higgs Masses
• Improved Calculation of Electroweak Radiative Corrections and the Value of V_ud
• Superallowed nuclear beta decays: A critical survey with tests of CVC and the standard model
• Neutralino Cold Dark Matter in a One Parameter Extension of the Minimal Supergravity Model
• Fermi Constants and ``New Physics''
• Hadronic Light-by-Light Contribution to Muon g-2 in Chiral Perturbation Theory
• Grand Unified Theories and Supersymmetry in Particle Physics and Cosmology
• A Statistical Analysis of Supersymmetric Dark Matter in the MSSM after WMAP
• Low Energy Tests of the Weak Interaction
• Impact of Physical Principles at Very High Energy Scales on the Superparticle Mass Spectrum
• New limit on fundamental weak-interaction parameters from superallowed beta decay
• Sharpening Low-Energy, Standard-Model Tests via Correlation Coefficients in Neutron Beta-Decay
• Charge and color breaking minima and constraints on the MSSM parameters
• Measurement of the Muon Decay Parameter delta
• Isospin Breaking in Neutron $\beta$-decay and SU(3) Violation in Semi-leptonic Hyperon Decays
• Global analysis of muon decay measurements
• Charged Current Universality in the MSSM
• Nuclear beta-decay, Atomic Parity Violation, and New Physics
• Measurement of P_{mu}xi in Polarized Muon Decay
• Neutrino mass constraints on beta decay
• Neutrino mass constraints on $\mu$-decay and ${\pi }^0\to \nu \bar{\nu }$
• Charged Current Universality and the MSSM
• Parity-Violation With Electrons: Theoretical Perspectives
• Mass measurements and superallowed beta decay
• The Hadronic Contribution to the Muon g-2
• Neutrino Mass Implications for Muon Decay Parameters
• Probing the Fundamental Symmetries of the Early Universe: The Low Energy Frontier

Cited by in corpus (21)

• Superallowed 0+ to 0+ nuclear beta decays: A new survey with precision tests of the conserved vector current hypothesis and the standard model
• Probing Novel Scalar and Tensor Interactions from (Ultra)Cold Neutrons to the LHC
• The neutron and its role in cosmology and particle physics
• Beta Decays and Non-Standard Interactions in the LHC Era
• Low Energy Precision Test of Supersymmetry
• Standard Model tests with trapped radioactive atoms
• Improved determination of the $\beta$-${\overline{\nu }}_e$ angular correlation coefficient $a$ in free neutron decay with the $a$SPECT spectrometer
• Tensor interaction constraints from beta decay recoil spin asymmetry of trapped atoms
• Precision measurements of the ${}^{60}$Co $\beta$-asymmetry parameter in search for tensor currents in weak interactions
• Limits on tensor type weak currents from nuclear and neutron $\beta$~decays
• A Precision Measurement of the Muon Decay Parameters $\rho$ and $\delta$
• Limits on Tensor Coupling from Neutron $\beta$-Decay
• Precision analysis of electron energy spectrum and angular distribution of neutron beta decay with polarized neutron and electron
• Electroweak baryogenesis and electron EDM in the B-LSSM
• Generating Non-topological Solitons Via Thermal Corrections: Higgs Balls
• NoMoS: An $R\times B$ Drift Momentum Spectrometer for Beta Decay Studies
• Neutrons and the New Standard Model
• Recent design studies for the novel momentum spectrometer NoMoS
• Helicity and nuclear $\beta$ decay correlations
• Z(3) Flavor Symmetry and Possible Implications
• Chiral Symmetries and Low Energy Searches for New Physics