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

A combination of measurements sensitive to the CKM angle gamma from LHCb is performed. The inputs are from analyses of time-integrated B+ -> DK+, B-0 -> DK*(0), B-0 -> DK+ pi(-) and B+ -> DK+ pi(+) pi(-) tree-level decays. In addition, results from a time-dependent analysis of B-s(0) -> (DsK +/-)-K--/+ decays are included. The combination yields = (72: 2(-7.3)(+6:8) 7 : 3)degrees, where the uncertainty includes systematic effects. The 95.5% confidence level interval is determined to be gamma is an element of [55.9, 85.2]degrees. A second combination is investigated, also including measurements from B+ -> DK+, B-0 -> DK*(0), B-0 -> DK+ pi(-) and B+ -> DK+ pi(+) pi decays, which yields compatible results.

Title: 

Measurement of the CKM angle gamma from a combination of LHCb results
Authors: Aaij, R.
Adeva, B.
Adinolfi, M.
Keywords: B physics
Hadron-Hadron scattering (experiments)
CP violation
CKM angle gamma
Issue Date: 2016
Publisher: SPRINGER, 233 SPRING ST, NEW YORK, NY 10013 USA
Citation: ISIKNOWLEDGE
Abstract: A combination of measurements sensitive to the CKM angle gamma from LHCb is performed. The inputs are from analyses of time-integrated B+ -> DK+, B-0 -> DK*(0), B-0 -> DK+ pi(-) and B+ -> DK+ pi(+) pi(-) tree-level decays. In addition, results from a time-dependent analysis of B-s(0) -> (DsK +/-)-K--/+ decays are included. The combination yields = (72: 2(-7.3)(+6:8) 7 : 3)degrees, where the uncertainty includes systematic effects. The 95.5% confidence level interval is determined to be gamma is an element of [55.9, 85.2]degrees. A second combination is investigated, also including measurements from B+ -> DK+, B-0 -> DK*(0), B-0 -> DK+ pi(-) and B+ -> DK+ pi(+) pi decays, which yields compatible results.
Description: JOURNAL OF HIGH ENERGY PHYSICS Issue: 12 Article Number: 087 ; 59 p. ; TNS06532
URI: http://repository.vnu.edu.vn/handle/VNU_123/29681
Appears in Collections:Bài báo của ĐHQGHN trong Web of Science

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