Abstract
Possibilities to test the Lorentz invariance of the weak interaction in muon decay are considered. We derive the direction-dependent muon-decay rate with a general Lorentz-violating addition to the W-boson propagator. We discuss measurements of the directional and boost dependence of the Michel parameters and of the muon lifetime as a function of absolute velocity. The total muon-decay rate in the Lorentz-violating standard model extension is addressed. Suggestions are made for dedicated (re) analyses of the pertinent data and for future experiments.
Original language | English |
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Article number | 116001 |
Journal | Physical Review D |
Volume | 93 |
Issue number | 11 |
DOIs | |
Publication status | Published - 6 Jun 2016 |
Externally published | Yes |
Keywords
- PARITY-NONCONSERVING INTERACTIONS
- ROTATIONAL INVARIANCE
- SPECIAL RELATIVITY
- WEAK INTERACTION
- NEUTRINO TESTS
- COSMIC-RAY
- PROTON
- MODEL
- CPT