CKM Matrix Elements

2011/10/27 by T. N. Pham, Pham, T. N.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.1110.6050

openalex publication_date 2011/10/27 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The current analysis of the Cabibbo-Kobayashi-Maskawa(CKM) quark mixing matrix uses the standard parametrisation by 3 mixing angles and the CP-violating KM phase. However it would be more convenient to express these mixing angle parameters in terms of the known CKM matrix elements like V_ud, V_us, V_ub, V_cb and the CP-violating phase δ. The other CKM matrix elements are then expressed in terms of these known matrix elements instead of the standard mixing angles. In this paper, using V_ud, V_us, V_ub and V_cb from the current global fit, we show that the measured values for |V_td/V_ts| and sinβ imply γ=(68± 3)^∘ at which sinβ and sinα are near its maximum, consistent with the global fit.

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