Effects of R-parity violation on CP asymmetries in Λb-->pπ decay
Abstract
We study new CP violating effects in the Λb-->pπ decay mode that can arise in the minimal supersymmetric standard model with R-parity violation. We estimate how much R-parity violation modifies the standard model predictions for CP asymmetries within the present bounds. We find that in the R-parity violating model, the rate asymmetry (acp) is suppressed (about 10 times) and the asymmetry parameter A(α) is enhanced [approximately O(102) times] with respect to the SM predictions.
- Publication:
-
Physical Review D
- Pub Date:
- March 2001
- DOI:
- 10.1103/PhysRevD.63.056006
- arXiv:
- arXiv:hep-ph/0005240
- Bibcode:
- 2001PhRvD..63e6006M
- Keywords:
-
- 11.30.Er;
- 12.60.Jv;
- 13.30.Eg;
- Charge conjugation parity time reversal and other discrete symmetries;
- Supersymmetric models;
- Hadronic decays;
- High Energy Physics - Phenomenology
- E-Print:
- Latex, 8 pages