Unitarity triangles and the search for New Physics

2002/06/14 by Francisco J. Botella, F. J. Botella, G. C. Branco +4 · 1 citation
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #Neutrino Physics Research #Particle physics theoretical and experimental studies #hep-ph

paper · pdf · doi:10.1016/s0550-3213(02)01089-1

published as Nucl.Phys. B651 (2003) 174-190 · 20 pages, 7 figures, uses tcilatex

arxiv created 2002/06/14 · openalex publication_date 2003/02/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01

Abstract

Assuming that the Kobayashi-Maskawa mechanism gives the dominant contribution to CP violation at low energies, we propose a novel way of testing the flavour sector of the Standard Model which has the potencial for discovering New Physics. Using 3 x 3 unitarity of the V_CKM matrix and choosing a complete set of rephasing invariant phases, we derive a set of exact relations in terms of measurable quantities, namely moduli of V_CKM and arguments of rephasing invariant quartets. These tests complement the usual analysis in the ρ, ηplane and, if there is New Physics, may reveal its source.

Citations

• Search forTandCPViolation inB0−B¯0Mixing with Inclusive Dilepton Events
• Improved measurement of the CP-violating asymmetry amplitude sin2beta
• Review of Particle Physics

Cited by

• Building the full Pontecorvo-Maki-Nakagawa-Sakata matrix from six independent Majorana-type phases