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Search for the decay B-s(0) -> D*(-/+)pi(+/-)

AutorLHCb Collaboration; Aaij, R.; Oyanguren, Arantza ; Ruiz Valls, Pablo
Palabras claveCP Violation
Package
Fecha de publicación23-abr-2013
EditorAmerican Physical Society
CitaciónPhysical Review - Section D - Particles and Fields 87 (7): 071101 - 8 (2013)
ResumenA search for the decay B-s(0) -> D*(-/+)pi(+/-) is presented using a data sample corresponding to an integrated luminosity of 1.0 fb(-1) of pp collisions collected by LHCb. This decay is expected to be mediated by a W-exchange diagram, with little contribution from rescattering processes, and therefore a measurement of the branching fraction will help us to understand the mechanism behind related decays such as B-s(0) -> pi(+)pi(-) and B-s(0) -> D (D) over bar. Systematic uncertainties are minimized by using B-0 -> D*(-/+)pi(+/-) as a normalization channel. We find no evidence for a signal, and set an upper limit on the branching fraction of B(B-s(0) -> D*(-/+)pi(+/-) < 6.1(7.8) x 10(-6) at 90% (95%) confidence level.
Versión del editorhttp://dx.doi.org/10.1103/PhysRevD.87.071101
URIhttp://hdl.handle.net/10261/125981
DOI10.1103/PhysRevD.87.071101
ISSN1550-7998
E-ISSN1550-2368
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