Séminaires

Matthew Kenzie (CERN) : Results of LHCb combination of CKM angle gamma

Europe/Paris
Amphi Georges Charpak (LPNHE)

Amphi Georges Charpak

LPNHE

Description
The CKM angle γ is the least well known constraint of the B0 unitarity triangle and is a vital measurement for understanding CP violation in the Standard Model. Any inconsistency between direct and indirect determination of γ would be a clear sign of new physics. It can be accessed by, theoretically clean, tree level decays of B+->D0K+ and B+ -> D0bar K+, where the D0 and D0bar decay to the same final state. An updated combination of several LHCb measurements is presented for which γ is found to be (70.9 + 7.1 -8.5) degrees. This is the most precise single-experiment measurement of γ to date.
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