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http://hdl.handle.net/2445/114431| Title: | First observation of the rare B+ → D+K+π− decay |
| Author: | Abellan Beteta, Carlos Camboni, Alessandro Comerma Montells, Albert Garrido Beltrán, Lluís Graciani Díaz, Ricardo Graugés Pous, Eugeni Pérez-Calero Yzquierdo, Antonio Picatoste Olloqui, Eduardo Rives Molina, Vicente José LHCb Collaboration |
| Keywords: | Hadrons Mesons (Física nuclear) Hadrons Mesons (Nuclear physics) |
| Issue Date: | 3-Mar-2016 |
| Publisher: | American Physical Society |
| Abstract: | The B+ -> D+K+pi(-) decay is observed in a data sample corresponding to 3.0 fb(-1) of pp collision data recorded by the LHCb experiment during 2011 and 2012. The signal significance is 8 sigma and the branching fraction is measured to be B(B+ -> D+K+pi(-)) = (5.31 +/- 0.90 +/- 0.48 +/- 0.35) x 10(-6), where the uncertainties are statistical, systematic and due to the normalization mode B+ -> D-K+pi(+), respectively. The Dalitz plot appears to be dominated by broad structures. Angular distributions are exploited to search for quasi-two-body contributions from B+ -> D*(2)(2460)K-0(+) and B+ -> (D+K*)(892)(0) decays. No significant signals are observed and upper limits are set on their branching fractions. |
| Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.93.051101 |
| It is part of: | Physical Review D, 2016, vol. 93, num. 5 |
| URI: | http://hdl.handle.net/2445/114431 |
| Related resource: | https://doi.org/10.1103/PhysRevD.93.051101 |
| ISSN: | 2470-0010 |
| Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) |
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