Colladay and Kostelecký have proposed a framework for studying Lorentz and CPT violation in a natural extension of the standard model. Although numerous bounds exist on the Lorentz and CPT violating parameters in the gauge boson and fermion sectors, there are no published bounds on the parameters in the Higgs sector. We determine these bounds. The bounds on the CPT-even asymmetric coefficients arise from the one-loop contributions to the photon propagator, those from the CPT-even symmetric coefficients arise from the equivalent cμν coefficients in the fermion sector, and those from the CPT-odd coefficient arise from bounds on the vacuum expectation value of the Z boson.
Physical Review D
- Pub Date:
- July 2004
- Charge conjugation parity time reversal and other discrete symmetries;
- Models beyond the standard model;
- High Energy Physics - Phenomenology
- 17 pages, 1 figure, 1 table