Published January 20, 2014
| Version v1
Journal article
Measurement of the flavour-specific CP-violating asymmetry asls in Bs0 decays
Creators
- 1. Nikhef National Institute for Subatomic Physics, Amsterdam (Netherlands)
- 2. Universidad de Santiago de Compostela, Santiago de Compostela (Spain)
- 3. H.H. Wills Physics Laboratory, University of Bristol, Bristol (United Kingdom)
- 4. CPPM, Aix-Marseille Université, CNRS/IN2P3, Marseille (France)
- 5. Oliver Lodge Laboratory, University of Liverpool, Liverpool (United Kingdom)
- 6. Clermont Université, Université Blaise Pascal, CNRS/IN2P3, LPC, Clermont-Ferrand (France)
- 7. Fakultät Physik, Technische Universität Dortmund, Dortmund (Germany)
- 8. European Organization for Nuclear Research (CERN), Geneva (Switzerland)
- 9. School of Physics and Astronomy, University of Glasgow, Glasgow (United Kingdom)
- 10. Petersburg Nuclear Physics Institute (PNPI), Gatchina (Russian Federation)
- 11. Sezione INFN di Roma La Sapienza, Roma (Italy)
- 12. Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro (Brazil)
- 13. Sezione INFN di Padova, Padova (Italy)
- 14. LAL, Université Paris-Sud, CNRS/IN2P3, Orsay (France)
- 15. Sezione INFN di Firenze, Firenze (Italy)
- 16. Physik-Institut, Universität Zürich, Zürich (Switzerland)
- 17. University of Cincinnati, Cincinnati, OH (United States)
- 18. University of Maryland, College Park, MD (United States)
Description
The CP-violating asymmetry asls is studied using semileptonic decays of Bs0 and B¯s0 mesons produced in pp collisions at a centre-of-mass energy of 7 TeV at the LHC, exploiting a data sample corresponding to an integrated luminosity of 1.0 fb−1. The reconstructed final states are Ds±μ∓, with the Ds± particle decaying in the ϕπ± mode. The Ds±μ∓ yields are summed over B¯s0 and Bs0 initial states, and integrated with respect to decay time. Data-driven methods are used to measure efficiency ratios. We obtain asls=(−0.06±0.50±0.36)%, where the first uncertainty is statistical and the second systematic
Availability note (English)
Available from http://dx.doi.org/10.1016/j.physletb.2013.12.030Additional details
Identifiers
- DOI
- 10.1016/j.physletb.2013.12.030;
- arXiv
- arXiv:1308.1048v2;
- PII
- S0370-2693(13)01005-8;
Publishing Information
- Journal Title
- Physics Letters. Section B
- Journal Volume
- 728
- Journal Page Range
- p. 607-615
- ISSN
- 0370-2693
- CODEN
- PYLBAJ
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 45063005
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- ASYMMETRY; CERN LHC; CP INVARIANCE; D S MESONS; FLAVOR MODEL; PROTON-PROTON INTERACTIONS; SEMILEPTONIC DECAY; TEV RANGE 01-10
- Descriptors DEC
- ACCELERATORS; BARYON-BARYON INTERACTIONS; BOSONS; CHARM PARTICLES; CHARMED MESONS; COMPOSITE MODELS; CYCLIC ACCELERATORS; DECAY; ELEMENTARY PARTICLES; ENERGY RANGE; HADRON-HADRON INTERACTIONS; HADRONS; INTERACTIONS; INVARIANCE PRINCIPLES; MATHEMATICAL MODELS; MESONS; NUCLEON-NUCLEON INTERACTIONS; PARTICLE DECAY; PARTICLE INTERACTIONS; PARTICLE MODELS; PROTON-NUCLEON INTERACTIONS; PSEUDOSCALAR MESONS; QUARK MODEL; STORAGE RINGS; STRANGE MESONS; STRANGE PARTICLES; SYNCHROTRONS; TEV RANGE; WEAK PARTICLE DECAY
Optional Information
- Copyright
- Copyright (c) 2013 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.