- Abstract:
-
The ratio of branching fractions R(D∗-)≡B(B0→D∗-τ+ντ)/B(B0→D∗-μ+νμ) is measured using a data sample of proton-proton collisions collected with the LHCb detector at center-of-mass energies of 7 and 8 TeV, corresponding to an integrated luminosity of 3 fb-1. The τ lepton is reconstructed with three charged pions in the final state. A novel method is used that exploits the different vertex topologies of signal and backgrounds to isolate samples of semitauonic decays of b hadrons with high purity...
Expand abstract - Publication status:
- Published
- Peer review status:
- Peer reviewed
- Version:
- Publisher's Version
- Files:
-
-
(pdf, 1.2MB)
-
- Publisher copy:
- 10.1103/PhysRevD.97.072013
-
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- Publisher:
- American Physical Society Publisher's website
- Journal:
- Physical Review D Journal website
- Volume:
- 97
- Pages:
- 072013
- Publication date:
- 2018-04-25
- Acceptance date:
- 2018-04-25
- DOI:
- EISSN:
-
2470-0029
- ISSN:
-
2470-0010
- Pubs id:
-
pubs:746955
- URN:
-
uri:52b21532-f4cf-4ceb-a78b-7b91a41fb466
- UUID:
-
uuid:52b21532-f4cf-4ceb-a78b-7b91a41fb466
- Local pid:
- pubs:746955
- Keywords:
- Copyright holder:
- CERN
- Copyright date:
- 2018
- Notes:
- © 2018 CERN, for the LHCb Collaboration. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.
Journal article
Test of lepton flavor universality by the measurement of the branching fraction using three-prong decays
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
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Conselho Nacional de Desenvolvimento Científico e Tecnológico
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Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro
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Financiadora de Estudos e Projetos
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Ministry of Science and Technology of China
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