Biancofiore, P. (2014) On the anomalies recently discovered in semileptonic B decays to the third family. Il nuovo cimento C, 37 (1). pp. 268-269. ISSN 1826-9885
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Abstract
The ratios R(D-(*)) = B(B -> D-(*) t (nu) over bar (tau))/B(B -> D-(*) mu(nu) over bar (mu)) measured by BABAR Collaboration deviate from the standard model expectations; at the same time the purely leptonic channel B -> tau(nu) over bar (tau) has been found in better consistency with the standard model. We provide an attempt to reconcile these two experimental facts, within a New Physics Scenario, by adding a tensor operator in the effective weak Hamiltonian. We calculate the effects of such an operator in a set of observables, in semileptonic B -> D-(*) modes as well as in semileptonic B and B-s decays to excited positive parity charmed mesons.
| Item Type: | Article |
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| Uncontrolled Keywords: | Decays of bottom mesons ; Models beyond the standard model |
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 12 May 2020 14:51 |
| Last Modified: | 12 May 2020 14:51 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/18513 |
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