violation in the semileptonicdecays: A model independent analysis
- 16 April 1999
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 59 (11) , 114005
- https://doi.org/10.1103/physrevd.59.114005
Abstract
violation from physics beyond the standard model is investigated in decays: The semileptonic B-meson decay to a D meson with an emission of a single pion is analyzed with heavy quark effective theory and chiral perturbation theory. In the decay process, we include various excited states as intermediate states decaying to the final hadrons, violation is implemented in a model independent way, in which we extend the leptonic current by including complex couplings of the scalar sector and those of the vector sector in extensions of the standard model. With these complex couplings, we calculate the -odd rate asymmetry and the optimal asymmetry. We find that the optimal asymmetry is sizable and can be detected at level with about -meson pairs, for some reference values of new physics effects.
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