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Test of lepton flavor universality by the measurement of the branching fraction using three-prong decays

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...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Publisher's Version

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Publisher copy:
10.1103/PhysRevD.97.072013

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Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics
Subgroup:
Particle Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics
Subgroup:
Particle Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics
Subgroup:
Particle Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics
Subgroup:
Particle Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics
Subgroup:
Particle Physics
Role:
Author
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior More from this funder
Conselho Nacional de Desenvolvimento Científico e Tecnológico More from this funder
Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro More from this funder
Financiadora de Estudos e Projetos More from this funder
Ministry of Science and Technology of China More from this funder
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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:

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