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New UTfitanalysis of the unitarity triangle in the Cabibbo–Kobayashi–Maskawa scheme

Authors :
Bona, Marcella
Ciuchini, Marco
Derkach, Denis
Ferrari, Fabio
Franco, Enrico
Lubicz, Vittorio
Martinelli, Guido
Morgante, Davide
Pierini, Maurizio
Silvestrini, Luca
Simula, Silvano
Stocchi, Achille
Tarantino, Cecilia
Vagnoni, Vincenzo
Valli, Mauro
Vittorio, Ludovico
Source :
Rendiconti Lincei; March 2023, Vol. 34 Issue: 1 p37-57, 21p
Publication Year :
2023

Abstract

Flavour mixing and CP violation as measured in weak decays and mixing of neutral mesons are a fundamental tool to test the Standard Model and to search for new physics. New analyses performed at the LHC experiment open an unprecedented insight into the Cabibbo–Kobayashi–Maskawa metrology and new evidence for rare decays. Important progress has also been achieved in theoretical calculations of several hadronic quantities with a remarkable reduction of the uncertainties. This improvement is essential since previous studies of the Unitarity Triangle did show that possible contributions from new physics, if any, must be tiny and could easily be hidden by theoretical and experimental errors. Thanks to the experimental and theoretical advances, the Cabibbo–Kobayashi–Maskawa picture provides very precise Standard Model predictions through global analyses. We present here the results of the latest global Standard Model analysis performed by the UTfit collaboration including all the most updated inputs from experiments, lattice Quantum Chromo-Dynamics and phenomenological calculations.

Details

Language :
English
ISSN :
20374631 and 23852623
Volume :
34
Issue :
1
Database :
Supplemental Index
Journal :
Rendiconti Lincei
Publication Type :
Periodical
Accession number :
ejs62271128
Full Text :
https://doi.org/10.1007/s12210-023-01137-5