Supersymmetry and CP violation in {delta}S=1 {tau} decays
- Instituto de Fisica, Universidad de Guanajuato, 37150 Leon, Guanajuato (Mexico)
- Ain Shams University, Faculty of Science, Cairo 11566 (Egypt)
- Departamento de Fisica, Cinvestav, Apdo. Postal 14-740, 07000 Mexico D.F (Mexico)
We compute the supersymmetry (SUSY) effective Hamiltonian that describes the {delta}S=1 semileptonic decays of tau leptons. We provide analytical expressions for supersymmetric contribution to {tau}{yields}us{nu}{sub {tau}} transition in mass insertion approximation. We show that SUSY contributions may enhance the CP asymmetry of {tau}{yields}K{pi}{nu}{sub {tau}} decays by several orders of magnitude with respect to the standard model expectations. However, the resulting asymmetry is still well below the current experimental limits obtained by CLEO Collaborations. We emphasize that measuring CP rate asymmetry in this decay larger than 10{sup -6} would be a clear evidence of physics beyond the supersymmetric extensions of the standard model.
- OSTI ID:
- 20871145
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 74, Issue 5; Other Information: DOI: 10.1103/PhysRevD.74.056004; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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