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| Author | LHCb Collaboration (Aaij, R. et al); Martinez-Vidal, F.; Oyanguren, A.; Ruiz Valls, P.; Sanchez Mayordomo, C. | ||||
| Title | Observation of the Lambda(0)(b) -> J / psi p pi(-) decay | Type | Journal Article | ||
| Year | 2014 | Publication | Journal of High Energy Physics | Abbreviated Journal | J. High Energy Phys. |
| Volume | 07 | Issue | 7 | Pages  |
103 - 19pp |
| Keywords | B physics; CP violation; Branching fraction; Flavor physics; Hadron-Hadron Scattering | ||||
| Abstract | The first observation of the Cabibbo-suppressed decay Lambda(0)(b) -> J / psi p pi(-) is reported using a data sample of proton-proton collisions at 7 and 8TeV, corresponding to an integrated luminosity of 3 fb(-1). A prominent signal is observed and the branching fraction relative to the decay mode Lambda(0)(b) -> J / psi pK(-) is determined to be B(Lambda(0)(b) -> J / psi p pi(-))/ B(Lambda(0)(b) -> J / psi pK(-)) = 0.0824 +/- 0.0025 (stat) +/- 0.0042 (syst). A search for direct CP violation is performed. The difference in the CP asymmetries between these two decays is found to be ACP(Lambda(0)(b) -> J / psi p pi(-))/ A(CP)(Lambda(0)(b) -> J / psi pK(-)) = (+5.7 +/- 2.4 (stat) +/- 1.2 (syst))%, which is compatible with CP symmetry at the 2.2 sigma level. | ||||
| Address | [Bediagal, I.; De Miranda, J. M.; Ferreira Rodrigues, F.; Gomes, A.; Hicheuri, A.; Massafferri, A.; dos Reis, A. C.; Rodrigues, A. B.] CBPF, Rio De Janeiro, Brazil, Email: patrick.koppenburg@cern.ch | ||||
| Corporate Author | Thesis | ||||
| Publisher | Springer | Place of Publication | Editor | ||
| Language | English | Summary Language | Original Title | ||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1029-8479 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | WOS:000346567700001 | Approved | no | ||
| Is ISI | yes | International Collaboration | yes | ||
| Call Number | IFIC @ pastor @ | Serial | 2058 | ||
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