Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2004-03-10
Phys.Rev. D70 (2004) 016001
Physics
High Energy Physics
High Energy Physics - Phenomenology
17 pages, 1 figure, 1 table; Clarifications and changes to text, results unchanged. References added. Version to be published
Scientific paper
10.1103/PhysRevD.70.016001
Colladay and Kostelecky 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 c_{\mu\nu} coefficients in the fermion sector, and those from the CPT-odd coefficient arise from bounds on the vacuum expectation value of the Z-boson.
Anderson David L.
Sher Marc
Turan Ismail
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