In:
Journal of High Energy Physics, Springer Science and Business Media LLC, Vol. 2023, No. 7 ( 2023-07-17)
Abstract:
The CKM angle γ is determined from CP -violating observables measured in B ± → D [ K ∓ π ± π ± π ∓ ] h ± , ( h = K, π ) decays, where the measurements are performed in bins of the decay phase-space of the D meson. Using proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of 7 , 8 and 13 TeV, corresponding to a total integrated luminosity of 9 fb − 1 , γ is determined to be $$ \gamma ={\left(54.8\begin{array}{c}+6.0\\ {}-5.8\end{array}\begin{array}{c}+0.6\\ {}-0.6\end{array}\begin{array}{c}+6.7\\ {}-4.3\end{array}\right)}^{\circ }, $$ γ = 54.8 + 6.0 − 5.8 + 0.6 − 0.6 + 6.7 − 4.3 ∘ , where the first uncertainty is statistical, the second systematic and the third from the external inputs on the coherence factors and strong phases of the D -meson decays.
Type of Medium:
Online Resource
ISSN:
1029-8479
DOI:
10.1007/JHEP07(2023)138
Language:
English
Publisher:
Springer Science and Business Media LLC
Publication Date:
2023
detail.hit.zdb_id:
2027350-2
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