R_b and R_{\ell} in MSSM without R-parity |
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Authors: | JM Yang |
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Institution: | (1) Institute of Theoretical Physics, Academia Sinica, Beijing 100080, P.R. China , CN |
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Abstract: | We examined and couplings in the minimal supersymmetric model with explicit trilinear R-parity violating interactions. We found that the top quark couplings and can give sizable contributions through top quark loops. When deriving the bounds from and data, we also take into account the loop contributions of R-parity conserving interactions. The bounds from are found to be stronger than those from and serve as the hitherto strongest bounds for some couplings.
Received: 14 October 1999 / Revised version: 2 May 2001 / Published online: 8 June 2001 |
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