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http://hdl.handle.net/2445/131835
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DC Field | Value | Language |
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dc.contributor.author | Graugés Pous, Eugeni | - |
dc.contributor.author | BABAR Collaboration | - |
dc.date.accessioned | 2019-04-08T13:46:50Z | - |
dc.date.available | 2019-04-08T13:46:50Z | - |
dc.date.issued | 2013-05-01 | - |
dc.identifier.issn | 1550-7998 | - |
dc.identifier.uri | http://hdl.handle.net/2445/131835 | - |
dc.description.abstract | We study the decay ¯¯¯ B 0 → Λ + c ¯ p π + π − , reconstructing the Λ + c baryon in the p K − π + mode, using a data sample of 467 × 10 6 B ¯¯¯ B pairs collected with the BABAR detector at the PEP-II storage rings at SLAC. We measure branching fractions for decays with intermediate Σ c baryons to be B [ ¯¯¯ B 0 → Σ c ( 2455 ) ++ ¯ p π − ] = ( 21.3 ± 1.0 ± 1.0 ± 5.5 ) × 10 − 5 , B [ ¯¯¯ B 0 → Σ c ( 2520 ) ++ ¯ p π − ] = ( 11.5 ± 1.0 ± 0.5 ± 3.0 ) × 10 − 5 , B [ ¯¯¯ B 0 → Σ c ( 2455 ) 0 ¯ p π + ] = ( 9.1 ± 0.7 ± 0.4 ± 2.4 ) × 10 − 5 , and B [ ¯¯¯ B 0 → Σ c ( 2520 ) 0 ¯ p π + ] = ( 2.2 ± 0.7 ± 0.1 ± 0.6 ) × 10 − 5 , where the uncertainties are statistical, systematic, and due to the uncertainty on the Λ + c → p K − π + branching fraction, respectively. For decays without Σ c ( 2455 ) or Σ c ( 2520 ) resonances, we measure B [ ¯¯¯ B 0 → Λ + c ¯ p π + π − ] non − Σ c = ( 79 ± 4 ± 4 ± 20 ) × 10 − 5 . The total branching fraction is determined to be B [ ¯¯¯ B 0 → Λ + c ¯ p π + π − ] total = ( 123 ± 5 ± 7 ± 32 ) × 10 − 5 . We examine multibody mass combinations in the resonant three-particle Σ c ¯ p π final states and in the four-particle Λ + c ¯ p π + π − final state, and observe different characteristics for the ¯ p π combination in neutral versus doubly charged Σ c decays. | - |
dc.format.extent | 17 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | American Physical Society | - |
dc.relation.isformatof | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.87.092004 | - |
dc.relation.ispartof | Physical Review D, 2013, vol. 87, num. 9, p. 092004 | - |
dc.relation.uri | https://doi.org/10.1103/PhysRevD.87.092004 | - |
dc.rights | (c) American Physical Society, 2013 | - |
dc.source | Articles publicats en revistes (Física Quàntica i Astrofísica) | - |
dc.subject.classification | Física de partícules | - |
dc.subject.classification | Experiments | - |
dc.subject.other | Particle physics | - |
dc.subject.other | Experiments | - |
dc.title | Study of the decay B¯0→Λc+p¯π+π- and its intermediate states | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 628982 | - |
dc.date.updated | 2019-04-08T13:46:51Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
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628982.pdf | 1.51 MB | Adobe PDF | View/Open |
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