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Analysis of the resonant components in B[over ¯]_{s}^{0}→J/ψπ^{+}π^{-}
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. (2012) Analysis of the resonant components in B[over ¯]_{s}^{0}→J/ψπ^{+}π^{-}. Physical Review D (Particles, Fields, Gravitation and Cosmology), Vol.86 (No.5). Article no. 052006. ISSN 1550-7998 Full text not available from this repository.
Official URL: http://dx.doi.org/10.1103/PhysRevD.86.052006
Abstract
The decay Bso→J/ψπ +π - can be exploited to study CP violation. A detailed understanding of its structure is imperative in order to optimize its usefulness. An analysis of this three-body final state is performed using a 1.0fb -1 sample of data produced in 7TeV pp collisions at the LHC and collected by the LHCb experiment. A modified Dalitz plot analysis of the final state is performed using both the invariant mass spectra and the decay angular distributions. The π +π - system is shown to be dominantly in an S-wave state, and the CP-odd fraction in this B̄s0 decay is shown to be greater than 0.977 at 95%confidence level. In addition, we report the first measurement of the J/ψπ +π - branching fraction relative to J/ψ of (19.79±0.47±0.52)%. © 2012 CERN. Published by the American Physical Society under the terms of the.
| Item Type: | Journal Article |
|---|---|
| Divisions: | Faculty of Science > Physics |
| Journal or Publication Title: | Physical Review D (Particles, Fields, Gravitation and Cosmology) |
| Publisher: | American Physical Society |
| ISSN: | 1550-7998 |
| Date: | 2012 |
| Volume: | Vol.86 |
| Number: | No.5 |
| Page Range: | Article no. 052006 |
| Identification Number: | 10.1103/PhysRevD.86.052006 |
| Status: | Peer Reviewed |
| Publication Status: | Published |
| Access rights to Published version: | Restricted or Subscription Access |
| URI: | http://wrap.warwick.ac.uk/id/eprint/50199 |
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