First observation of the decay B+→π+μ+μ−

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

doi:10.1007/JHEP12(2012)125

First observation of the decay B+→π+μ+μ−

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 discovery of the rare decay B+→π+μ+μ− is presented. This decay is observed for the first time, with 5.2 σ significance. The observation is made using pp collision data, corresponding to an integrated luminosity of 1.0 fb−1, collected with the LHCb detector. The measured branching fraction is (2.3 ± 0.6 (stat.) ± 0.1 (syst.))×10−8, and the ratio of the B+→π+μ+μ− and B+→K+μ+μ− branching fractions is measured to be 0.053 ± 0.014 (stat.) ± 0.001 (syst.).

Original language	Undefined/Unknown
Pages (from-to)	125
Number of pages	1
Journal	Journal of High Energy Physics
Volume	1212
Early online date	9 Oct 2012
DOIs	https://doi.org/10.1007/JHEP12(2012)125
Publication status	Published - Dec 2012

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10.1007/JHEP12(2012)125

Cite this

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title = "First observation of the decay B+→π+μ+μ−",

abstract = "A discovery of the rare decay B+→π+μ+μ− is presented. This decay is observed for the first time, with 5.2 σ significance. The observation is made using pp collision data, corresponding to an integrated luminosity of 1.0 fb−1, collected with the LHCb detector. The measured branching fraction is (2.3 ± 0.6 (stat.) ± 0.1 (syst.))×10−8, and the ratio of the B+→π+μ+μ− and B+→K+μ+μ− branching fractions is measured to be 0.053 ± 0.014 (stat.) ± 0.001 (syst.).",

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 = "10.1007/JHEP12(2012)125",

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T1 - First observation of the decay B+→π+μ+μ−

AU - Playfer, Stephen

AU - The LHCb Collaboration

AU - Needham, Matthew

AU - Muheim, Franz

AU - Clarke, Peter

AU - Xie, Yuehong

AU - Eisenhardt, Stephan

PY - 2012/12

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N2 - A discovery of the rare decay B+→π+μ+μ− is presented. This decay is observed for the first time, with 5.2 σ significance. The observation is made using pp collision data, corresponding to an integrated luminosity of 1.0 fb−1, collected with the LHCb detector. The measured branching fraction is (2.3 ± 0.6 (stat.) ± 0.1 (syst.))×10−8, and the ratio of the B+→π+μ+μ− and B+→K+μ+μ− branching fractions is measured to be 0.053 ± 0.014 (stat.) ± 0.001 (syst.).

AB - A discovery of the rare decay B+→π+μ+μ− is presented. This decay is observed for the first time, with 5.2 σ significance. The observation is made using pp collision data, corresponding to an integrated luminosity of 1.0 fb−1, collected with the LHCb detector. The measured branching fraction is (2.3 ± 0.6 (stat.) ± 0.1 (syst.))×10−8, and the ratio of the B+→π+μ+μ− and B+→K+μ+μ− branching fractions is measured to be 0.053 ± 0.014 (stat.) ± 0.001 (syst.).

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DO - 10.1007/JHEP12(2012)125

M3 - Article

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JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

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