Betti, F. (2019) Measurements of lepton universality at LHCb. Il nuovo cimento C, 42 (4). pp. 1-3. ISSN 1826-9885
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Abstract
Lepton universality violation would represent a signal of physics beyond the Standard Model. Anomalies have been observed in the measurement of the branching ratios of semileptonic decays of beauty mesons in third-generation leptons. This contribution reports on the measurements of the observable R(D∗−) = B(B0 → D∗−τ +ντ )/B(B0 → D∗−μ+νμ) and R(J/ψ) = B(B+ c → J/ψτ +ντ )/B(B+ c → J/ψμ+νμ) performed at LHCb with data collected during the Run 1 of the LHC.
| Item Type: | Article |
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| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 21 Dec 2020 13:10 |
| Last Modified: | 21 Dec 2020 13:10 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/20557 |
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