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Study of the decay B0→Λc+pπ+π- and its intermediate states
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BaBar Collaboration (Including: Gershon, T. J., Harrison, P. F. and Latham, Thomas). (2013) Study of the decay B0→Λc+pπ+π- and its intermediate states. Physical Review D (Particles, Fields, Gravitation and Cosmology), Volume 87 (Number 9). Article number 092004 . doi:doi: 10.5606/tgkdc.dergisi.2013.6683 ISSN 1550-7998.
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Official URL: http://dx.doi.org/10.1103/PhysRevD.87.092004
Abstract
We study the decay B̅ 0→Λc+p̅ π+π-, reconstructing the Λc+ baryon in the pK-π+ mode, using a data sample of 467×106 BB̅ pairs collected with the BABAR detector at the PEP-II storage rings at SLAC. We measure branching fractions for decays with intermediate Σc baryons to be B[B̅ 0→Σc(2455)++p̅ π-]=(21.3±1.0±1.0±5.5)×10-5, B[B̅ 0→Σc(2520)++p̅ π-]=(11.5±1.0±0.5±3.0)×10-5, B[B̅ 0→Σc(2455)0p̅ π+]=(9.1±0.7±0.4±2.4)×10-5, and B[B̅ 0→Σc(2520)0p̅ π+]=(2.2±0.7±0.1±0.6)×10-5, where the uncertainties are statistical, systematic, and due to the uncertainty on the Λc+→pK-π+ branching fraction, respectively. For decays without Σc(2455) or Σc(2520) resonances, we measure B[B̅ 0→Λc+p̅ π+π-]non-Σc= (79±4±4±20)×10-5. The total branching fraction is determined to be B[B̅ 0→Λc+p̅ π+π-]total=(123±5±7±32)×10-5. We examine multibody mass combinations in the resonant three-particle Σcp̅ π final states and in the four-particle Λc+p̅ π+π- final state, and observe different characteristics for the p̅ π combination in neutral versus doubly charged Σc decays.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Alternative Title: | Study of the decay (B)over-bar(0) -> Lambda(+)(c) (p)over-bar pi(+) pi(-) and its intermediate states | ||||
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
| Journal or Publication Title: | Physical Review D (Particles, Fields, Gravitation and Cosmology) | ||||
| Publisher: | American Physical Society | ||||
| ISSN: | 1550-7998 | ||||
| Official Date: | 2013 | ||||
| Dates: |
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| Volume: | Volume 87 | ||||
| Number: | Number 9 | ||||
| Page Range: | Article number 092004 | ||||
| DOI: | doi: 10.5606/tgkdc.dergisi.2013.6683 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access |
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