Current status of the standard model CKM fit and constraints on ∆ F =2 new physics
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 α and γ and the status of Bs→μ μ and Bd→μ μ decays. We illustrate the current situation for other unitarity triangles. We also discuss the constraints on generic ∆ F =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.
- Publication:
-
Physical Review D
- Pub Date:
- April 2015
- DOI:
- 10.1103/PhysRevD.91.073007
- arXiv:
- arXiv:1501.05013
- Bibcode:
- 2015PhRvD..91g3007C
- Keywords:
-
- 12.15.Hh;
- 12.15.Ji;
- 12.60.Fr;
- 13.20.-v;
- Determination of Kobayashi-Maskawa matrix elements;
- Applications of electroweak models to specific processes;
- Extensions of electroweak Higgs sector;
- Leptonic semileptonic and radiative decays of mesons;
- High Energy Physics - Phenomenology;
- High Energy Physics - Experiment
- E-Print:
- 13 pages, 11 figures, 6 tables. Accepted for publication in Phys. Rev. D. arXiv admin note: text overlap with arXiv:1106.4041