Published March 23, 2007
| Version v1
Journal article
Lifetime Difference and CP-Violating Phase in the Bs0 System
Creators
- Abazov, V. M.1
- Alexeev, G. D.1
- Kalinin, A. M.1
- Kharzheev, Y. M.1
- Malyshev, V. L.1
- Tokmenin, V. V.1
- Eijk, B. van1
- Vertogradov, L. S.1
- Yatsunenko, Y. A.1
- Abbott, B.2
- Gutierrez, P.2
- Hall, I.2
- Jain, S.2
- Kopal, M.2
- Pompos, A.2
- Severini, H.2
- Skubic, P.2
- Strauss, M.2
- Abolins, M.3
- Benitez, J. A.3
- and others
- D0 Collaboration
- 1. Joint Institute for Nuclear Research, Dubna (Russian Federation)
- 2. University of Oklahoma, Norman, Oklahoma 73019 (United States)
- 3. Michigan State University, East Lansing, Michigan 48824 (United States)
Description
From an analysis of the decay Bs0→J/ψφ, we obtain the width difference between the light and heavy mass eigenstates ΔΓ≡(ΓL-ΓH)=0.17±0.09(stat)±0.02(syst) ps-1 and the CP-violating phase φs=-0.79±0.56(stat)-0.01+0.14(syst). Under the hypothesis of no CP violation (φs≡0), we obtain 1/Γ= τ(Bs0)=1.52±0.08(stat)-0.03+0.01(syst) ps and ΔΓ=0.12-0.10+0.08(stat)±0.02(syst) ps-1. The data sample corresponds to an integrated luminosity of about 1.1 fb-1 accumulated with the D0 detector at the Fermilab Tevatron collider. This is the first direct measurement of the CP-violating mixing phase in the Bs0 system
Additional details
Identifiers
- DOI
- 10.1103/PhysRevLett.98.121801;
- arXiv
- arXiv:hep-ex/0701012v1;
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 98
- Journal Issue
- 12
- Journal Page Range
- p. 121801-121801.7
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 38101342
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- B NEUTRAL MESONS; BEAM LUMINOSITY; CP INVARIANCE; EIGENSTATES; FERMILAB TEVATRON; J PSI-3097 MESONS; LIFETIME; MASS; PARTICLE DECAY; PARTICLE PRODUCTION; PARTICLE WIDTHS; PHI MESONS
- Descriptors DEC
- ACCELERATORS; B MESONS; BEAUTY MESONS; BEAUTY PARTICLES; BOSONS; CHARMONIUM; CYCLIC ACCELERATORS; DECAY; ELEMENTARY PARTICLES; HADRONS; INVARIANCE PRINCIPLES; MESONS; PARTICLE PROPERTIES; PSEUDOSCALAR MESONS; QUARKONIUM; SYNCHROTRONS; VECTOR MESONS
Optional Information
- Notes
- (c) 2007 The American Physical Society
- Collaborations
- D0 Collaboration