Published 2003
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Determination of ΔΓs from analysis of untagged decays Bs0→J/ψφ by using the method of angular moments
Creators
- 1. Joint Institute for Nuclear Research, Dubna (Russian Federation)
- 2. Francisk Skarina Gomel State University, Gomel (Belarus)
Description
The performance of the method of angular moments on the ΔΓs determination from analysis of untagged decays Bs0(t), Bs0 bar (t) → J/ψ(→ l+l-)φ(→ K+K-) is examined. The results of Monte Carlo studies with evaluation of measurement errors are presented. The method of angular moments gives stable results for the estimate of ΔΓs and is found to be an efficient and flexible tool for the quantitative investigation of the Bs0→J/ψφ decay. The statistical error of the ratio ΔΓs/Γs for values of this ratio in the interval [0.03, 0.3] was found to be independent of this value, being 0.015 for 105 events
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35007390.pdf
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Additional details
Additional titles
- Original title (English)
- Pis'ma v EhChAYa
Publishing Information
- Imprint Title
- Particles and nuclei, letters
- Imprint Pagination
- 89 p.
- Journal Page Range
- p. 11-28
- Report number
- JINR--2-117-2003
INIS
- Country of Publication
- Joint Institute for Nuclear Research (JINR)
- Country of Input or Organization
- Joint Institute for Nuclear Research (JINR)
- INIS RN
- 35007390
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S99: GENERAL AND MISCELLANEOUS;
- Descriptors DEI
- ANGULAR DISTRIBUTION; ANGULAR MOMENTUM; B NEUTRAL MESONS; B S MESONS; COMPUTERIZED SIMULATION; DATA ANALYSIS; ERRORS; HADRONIC PARTICLE DECAY; J PSI-3097 MESONS; MONTE CARLO METHOD; PHI-1020 MESONS; WEIGHTING FUNCTIONS
- Descriptors DEC
- B MESONS; BEAUTY MESONS; BEAUTY PARTICLES; BOSONS; CALCULATION METHODS; CHARMONIUM; DECAY; DISTRIBUTION; ELEMENTARY PARTICLES; FUNCTIONS; HADRONS; MESONS; PARTICLE DECAY; PSEUDOSCALAR MESONS; QUARKONIUM; SIMULATION; STRANGE MESONS; STRANGE PARTICLES; STRANGEONIUM; VECTOR MESONS
Optional Information
- Notes
- 19 refs., 3 figs., 6 tabs. Imprint:Pis'ma v EhChAYa