Tipus de document

Article

Versió

Versió publicada

Data de publicació

Tots els drets reservats

Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/114431

First observation of the rare B+ → D+K+π− decay

Títol de la revista

Director/Tutor

Contribució addicional

ISSN de la revista

Títol del volum

Resum

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.

Matèries (anglès)

Citació

Citació

ABELLAN BETETA, Carlos, et al. First observation of the rare B+ → D+K+π− decay. Physical Review D. 2016. Vol. 93, num. 5. ISSN 2470-0010. [consulted: 30 of October of 2026]. Available at: https://hdl.handle.net/2445/114431

Exportar metadades

JSON - METS

Compartir registre