Measurement of the CKM angle gamma from a combination of LHCb results

LHCb Collaboration

doi:10.1007/JHEP12(2016)087

Measurement of the CKM angle gamma from a combination of LHCb results

LHCb Collaboration

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Abstract

A combination of measurements sensitive to the CKM angle γ from LHCb is performed. The inputs are from analyses of time-integrated B+→DK+, B0→DK∗0, B0→DK+π− and B+→DK+π+π− tree-level decays. In addition, results from a time-dependent analysis of B0s→D∓sK± decays are included. The combination yields γ=(72.2+6.8−7.3)∘, where the uncertainty includes systematic effects. The 95.5% confidence level interval is determined to be γ∈[55.9,85.2]∘. A second combination is investigated, also including measurements from B+→Dπ+ and B+→Dπ+π−π+ decays, which yields compatible results.

Original language	English
Article number	87
Number of pages	59
Journal	Journal of High Energy Physics
Volume	12
Early online date	19 Dec 2016
DOIs	https://doi.org/10.1007/JHEP12(2016)087
Publication status	Published - Dec 2016

Keywords

B physics
CKM angle gamma
CP violation
Hadron-Hadron scattering (experiments)

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10.1007/JHEP12(2016)087

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This is the final published version of the article (version of record). It first appeared online via Springer at http://link.springer.com/article/10.1007%2FJHEP12%282016%29087. Please refer to any applicable terms of use of the publisher.
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@article{677fe5bba02d40e2b01892a09d48f6f6,

title = "Measurement of the CKM angle gamma from a combination of LHCb results",

abstract = "A combination of measurements sensitive to the CKM angle γ from LHCb is performed. The inputs are from analyses of time-integrated B+→DK+, B0→DK∗0, B0→DK+π− and B+→DK+π+π− tree-level decays. In addition, results from a time-dependent analysis of B0s→D∓sK± decays are included. The combination yields γ=(72.2+6.8−7.3)∘, where the uncertainty includes systematic effects. The 95.5\% confidence level interval is determined to be γ∈[55.9,85.2]∘. A second combination is investigated, also including measurements from B+→Dπ+ and B+→Dπ+π−π+ decays, which yields compatible results. ",

keywords = "B physics, CKM angle gamma, CP violation, Hadron-Hadron scattering (experiments) ",

author = "Jonas Rademacker and Paras Naik and Jaap Velthuis and Marco Adinolfi and Sam Harnew and Jeremy Dalseno and Nicola Skidmore and Sophie Richards and Eugenia Price and Claire Prouve and Konstantinos Petridis and Renato Quagliani and Emma Buchanan and \{LHCb Collaboration\}",

year = "2016",

month = dec,

doi = "10.1007/JHEP12(2016)087",

language = "English",

volume = "12",

journal = "Journal of High Energy Physics",

issn = "1029-8479",

publisher = "Springer Verlag",

}

TY - JOUR

T1 - Measurement of the CKM angle gamma from a combination of LHCb results

AU - Rademacker, Jonas

AU - Naik, Paras

AU - Velthuis, Jaap

AU - Adinolfi, Marco

AU - Harnew, Sam

AU - Dalseno, Jeremy

AU - Skidmore, Nicola

AU - Richards, Sophie

AU - Price, Eugenia

AU - Prouve, Claire

AU - Petridis, Konstantinos

AU - Quagliani, Renato

AU - Buchanan, Emma

AU - LHCb Collaboration

PY - 2016/12

Y1 - 2016/12

N2 - A combination of measurements sensitive to the CKM angle γ from LHCb is performed. The inputs are from analyses of time-integrated B+→DK+, B0→DK∗0, B0→DK+π− and B+→DK+π+π− tree-level decays. In addition, results from a time-dependent analysis of B0s→D∓sK± decays are included. The combination yields γ=(72.2+6.8−7.3)∘, where the uncertainty includes systematic effects. The 95.5% confidence level interval is determined to be γ∈[55.9,85.2]∘. A second combination is investigated, also including measurements from B+→Dπ+ and B+→Dπ+π−π+ decays, which yields compatible results.

AB - A combination of measurements sensitive to the CKM angle γ from LHCb is performed. The inputs are from analyses of time-integrated B+→DK+, B0→DK∗0, B0→DK+π− and B+→DK+π+π− tree-level decays. In addition, results from a time-dependent analysis of B0s→D∓sK± decays are included. The combination yields γ=(72.2+6.8−7.3)∘, where the uncertainty includes systematic effects. The 95.5% confidence level interval is determined to be γ∈[55.9,85.2]∘. A second combination is investigated, also including measurements from B+→Dπ+ and B+→Dπ+π−π+ decays, which yields compatible results.

KW - B physics

KW - CKM angle gamma

KW - CP violation

KW - Hadron-Hadron scattering (experiments)

UR - http://inspirehep.net/record/1496635

U2 - 10.1007/JHEP12(2016)087

DO - 10.1007/JHEP12(2016)087

M3 - Article (Academic Journal)

SN - 1029-8479

VL - 12

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

M1 - 87

ER -

Measurement of the CKM angle gamma from a combination of LHCb results

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Bristol Consolidated Grant 2015-9

Professor Jonas H Rademacker

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Measurement of the CKM angle gamma from a combination of LHCb results

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Keywords

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Bristol Consolidated Grant 2015-9

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Professor Jonas H Rademacker

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