Measurement of the relative B − → D 0 / D * 0 / D * * 0 μ − ν ¯ μ branching fractions using B − mesons from B ¯ s 2 * 0 decays
Name
PhysRevD.99.092009.pdf
Description
Published version
Size
706.35 KB
Format
Unknown
Checksum (MD5)
05c0ba96edc214957f02c271b2cf95c9
Author(s)
The LHCb Collaboration
Boettcher, Thomas Julian
Craik, Daniel C
Weisser, Constantin
Williams, Michael
Date Issued
2019
Journal
Physical Review D
Publisher
American Physical Society (APS)
Version
Final published version
Abstract
© 2019 CERN. for the LHCb Collaboration. Published by the American Physical Society under the terms of the »https://creativecommons.org/licenses/by/4.0/» 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. The decay of the narrow resonance Bs2∗0→B-K+ can be used to determine the B- momentum in partially reconstructed decays without any assumptions on the decay products of the B- meson. This technique is employed for the first time to distinguish contributions from D0, D∗0, and higher-mass charmed states (D∗∗0) in semileptonic B- decays by using the missing-mass distribution. The measurement is performed using a data sample corresponding to an integrated luminosity of 3.0 fb-1 collected with the LHCb detector in pp collisions at center-of-mass energies of 7 and 8 TeV. The resulting branching fractions relative to the inclusive B-→D0Xμ-νμ are fD0=B(B-→D0μ-νμ)/B(B-→D0Xμ-νμ)=0.25±0.06,fD∗∗0=B(B-→(D∗∗0→D0X)μ-νμ)/B(B-→D0Xμ-νμ)=0.21±0.07, with fD∗0=1-fD0-fD∗∗0 making up the remainder.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Terms of Use
Creative Commons Attribution 4.0 International license
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1103/PHYSREVD.99.092009
