Current status of the standard model CKM fit and constraints onΔF=2new physics

2015/01/31 by J. Charles, Jérôme Charles, O. Deschamps +20 · 6 citations
Mathematics · Physics and Astronomy · #Cabibbo–Kobayashi–Maskawa matrix #Frequentist inference #Gauge (firearms) #Mathematics #Neutrino Physics Research #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Quantum Chromodynamics and Particle Interactions #Quark #Standard Model (mathematical formulation) #Statistics #Unitarity #hep-ex #hep-ph

paper · pdf · doi:10.1103/physrevd.91.073007

published as Phys. Rev. D 91, 073007 (2015) · 13 pages, 11 figures, 6 tables. Accepted for publication in Phys. Rev. D. arXiv admin note: text overlap with arXiv:1106.4041

openalex publication_date 2015/04/09 · arxiv created 2015/04/10 · arxiv updated 2015/04/16 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

This article summarizes the status of the global fit of the Cabibbo-Kobayashi-Maskawa (CKM) parameters within the Standard Model performed by the CKMfitter group. Special attention is paid to the inputs for the CKM angles \ensuremathα and \ensuremathγ and the status of B_s\ensuremath→\ensuremathμ\ensuremathμ and B_d\ensuremath→\ensuremathμ\ensuremathμ decays. We illustrate the current situation for other unitarity triangles. We also discuss the constraints on generic \mathrm\ensuremathΔF=2 new physics. All results have been obtained with the CKMfitter analysis package, featuring the frequentist statistical approach and using Rfit to handle theoretical uncertainties.

Citations

• Predictions of selected flavor observables within the standard model
• The CKM Matrix and the Unitarity Triangle
• Implications of the Measurement of theBs0B¯s0Mass Difference
• CP violation and the CKM matrix: assessing the impact of the asymmetric B factories
• Lattice QCD inputs to the CKM unitarity triangle analysis
• CP-Violation in the Renormalizable Theory of Weak Interaction
• B-parameters of the complete set of matrix elements of (ΔB = 2) operators from the lattice
• Big-Bang Nucleosynthesis

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• Scalar doublet models confrontτandbanomalies
• Universal Unitarity Triangle 2016 and the tension between Δ M_s,d Δ M s , d and ε _K ε K in CMFV models
• Exploring B→ π π , π K B → π π , π K decays at the high-precision frontier