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Measurement of the ratio of the B0→D*−τ+ντ and B0→D*−μ+νμ branching fractions using three-prong τ-lepton decays

Abstract:

The ratio of branching fractions R(D^{*-})≡B(B^{0}→D^{*-}τ^{+}ν_{τ})/B(B^{0}→D^{*-}μ^{+}ν_{μ}) 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}. For the first time, R(D^{*-}) is determined using the τ-lepton decays with three charged pions in the final state. The B^{0}→D^{*-}τ^{+}ν_{τ} yield is normalized to that of the B^{0}→D^{*-}π^{+}π^{-}π^{+} mode...

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

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Publisher copy:
10.1103/physrevlett.120.171802

Authors


Adinolfi, M More by this author
Ajaltouni, Z More by this author
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Publisher:
American Physical Society Publisher's website
Journal:
Physical Review Letters Journal website
Volume:
120
Issue:
17
Pages:
Article: 171802
Publication date:
2018-04-25
Acceptance date:
2018-04-25
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
Pubs id:
pubs:726144
URN:
uri:efdac7d0-daa3-4fec-b5ff-b98759488e63
UUID:
uuid:efdac7d0-daa3-4fec-b5ff-b98759488e63
Local pid:
pubs:726144
Language:
English
Keywords:

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