Experimental tests on the lifetime Asymmetry

Abstract

The experimental test problem of the left-right polarization-dependent lifetime asymmetry is discussed. It shows that the existing experiments cannot demonstrate the lifetime asymmetry to be right or wrong after analyzing the measurements on the neutron, the muon and the tau lifetime, as well as the $g-2$ experiment. However, It is pointed out emphatically that the SLD and the E158 experiments, the measurements of the left-right integrated cross section asymmetry in $Z$ boson production by $e^{+}{e}^{-}$ collisions and by electron-electron Møller scattering, can indirectly demonstrate the lifetime asymmetry. In order to directly demonstrate the lifetime asymmetry, we propose some possible experiments on the decays of polarized muons. The precise measurement of the lifetime asymmetry could have important significance for building a muon collider, also in cosmology and astrophysics. It would provide a sensitive test of the standard model in particle physics and allow for exploration of the possible $V+A$ interactions.

11 pages, 1 figure

References in corpus (9)

• Precise Measurement of the Positive Muon Anomalous Magnetic Moment
• Precision Measurement of the Weak Mixing Angle in Moller Scattering
• Observation of Parity Nonconservation in Moller Scattering
• Improved Measurement of the Positive Muon Anomalous Magnetic Moment
• A High-Precision Measurement of the Left-Right Z Boson Cross-Section Asymmetry
• Measurement of the Michel Parameter $\rho$ in Muon Decay
• Measurement of the Lifetime of the Tau Lepton
• The Decay Lifetime of Polarized Fermions in Flight
• The Lifetime Asymmetry of Polarized Muons in Flight

Cited by in corpus (2)

• Discrete Symmetry in Relativistic Quantum Mechanics
• Left-Right Asymmetry of Weak Interaction Mass of Polarized Fermions in Flight