Quark Mixing, CKM Unitarity

Preprint

11 December 2003

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ph/0312150

Abstract

In the Standard Model of elementary particles, quark-mixing is expressed in terms of a 3 x 3 unitary matrix V, the so called Cabibbo-Kobayashi-Maskawa (CKM) matrix. Significant unitarity checks are so far possible for the first row of this matrix. This article reviews the experimental and theoretical information on these matrix elements. On the experimental side, we find a 2.2 sigma to 2.7 sigma deviation from unitarity, which conflicts with the Standard Model.

Keywords

ELEMENTARY PARTICLES
STANDARD MODEL
CKM UNITARITY
QUARK MIXING
CONFLICTS
UNITARITY

All Related Versions

Version 1, 2003-12-11, ArXiv
Published version: The European Physical Journal C, 33 (1), 1.

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