Search for the decay B0s→D∗∓π±

The LHCb Collaboration; Matthew Needham; Franz Muheim; Peter Clarke; Yuehong Xie; Stephan Eisenhardt

doi:10.1103/PhysRevD.87.071101

Search for the decay B0s→D∗∓π±

The LHCb Collaboration, Matthew Needham, Franz Muheim, Peter Clarke, Yuehong Xie, Stephan Eisenhardt

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

A search for the decay B0s→D∗∓π± 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 to understand the mechanism behind related decays such as B0s→π+π− and B0s→DD−−. Systematic uncertainties are minimised by using B0→D∗∓π± as a normalisation channel. We find no evidence for a signal, and set an upper limit on the branching fraction of B(B0s→D∗∓π±)<6.1(7.8)×10−6 at 90% (95%) confidence level.

Original language	English
Pages (from-to)	071101
Number of pages	1
Journal	Physical Review D, particles, fields, gravitation, and cosmology
Volume	D87
Early online date	26 Feb 2013
DOIs	https://doi.org/10.1103/PhysRevD.87.071101
Publication status	Published - 23 Apr 2013

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10.1103/PhysRevD.87.071101

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title = "Search for the decay B0s→D∗∓π±",

abstract = "A search for the decay B0s→D∗∓π± 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 to understand the mechanism behind related decays such as B0s→π+π− and B0s→DD−−. Systematic uncertainties are minimised by using B0→D∗∓π± as a normalisation channel. We find no evidence for a signal, and set an upper limit on the branching fraction of B(B0s→D∗∓π±)<6.1(7.8)×10−6 at 90% (95%) confidence level. ",

author = "Stephen Playfer and {The LHCb Collaboration} and Matthew Needham and Franz Muheim and Peter Clarke and Yuehong Xie and Stephan Eisenhardt",

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doi = "10.1103/PhysRevD.87.071101",

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T1 - Search for the decay B0s→D∗∓π±

AU - Playfer, Stephen

AU - The LHCb Collaboration

AU - Needham, Matthew

AU - Muheim, Franz

AU - Clarke, Peter

AU - Xie, Yuehong

AU - Eisenhardt, Stephan

PY - 2013/4/23

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AB - A search for the decay B0s→D∗∓π± 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 to understand the mechanism behind related decays such as B0s→π+π− and B0s→DD−−. Systematic uncertainties are minimised by using B0→D∗∓π± as a normalisation channel. We find no evidence for a signal, and set an upper limit on the branching fraction of B(B0s→D∗∓π±)<6.1(7.8)×10−6 at 90% (95%) confidence level.

U2 - 10.1103/PhysRevD.87.071101

DO - 10.1103/PhysRevD.87.071101

M3 - Article

VL - D87

SP - 071101

JO - Physical Review D, particles, fields, gravitation, and cosmology

JF - Physical Review D, particles, fields, gravitation, and cosmology

ER -

Search for the decay B0s→D∗∓π±

Abstract

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