Published March 27, 2009
| Version v1
Journal article
Naturalness of CP Violation in the Standard Model
- 1. DAMTP, Centre for Mathematical Sciences, Cambridge University, Wilberforce Road, Cambridge, CB3 0WA (United Kingdom)
- 2. George P. and Cynthia W. Mitchell Institute for Fundamental Physics and Astronomy, Texas A and M University, College Station, Texas 77843-4242 (United States)
- 3. Perimeter Institute for Theoretical Physics, 31 Caroline Street N., Waterloo, Ontario, N2L 2Y5 (Canada)
Description
We construct a natural measure on the space of Cabibbo-Kobayashi-Maskawa matrices in the standard model, assuming the fermion mass matrices are randomly selected from a distribution which incorporates the observed quark mass hierarchy. This measure allows us to assess the likelihood of Jarlskog's CP violation parameter J taking its observed value J≅3x10-5. We find that the observed value, while well below the mathematically allowed maximum, is in fact typical once the observed quark masses are assumed
Additional details
Identifiers
- DOI
- 10.1103/PhysRevLett.102.121802;
- arXiv
- arXiv:0810.4368v2;
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 102
- Journal Issue
- 12
- Journal Page Range
- p. 121802-121802.4
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 40054518
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- CP INVARIANCE; KOBAYASHI-MASKAWA MATRIX; MASS; QUARKS; STANDARD MODEL
- Descriptors DEC
- FERMIONS; FIELD THEORIES; GRAND UNIFIED THEORY; INVARIANCE PRINCIPLES; MATHEMATICAL MODELS; MATRICES; PARTICLE MODELS; QUANTUM FIELD THEORY; UNIFIED GAUGE MODELS
Optional Information
- Notes
- (c) 2009 The American Physical Society