scholarly journals Probing squared four-fermion operators of SMEFT with meson-mixing

2022 ◽  
Author(s):  
Luiz Vale Silva
Keyword(s):  
Meson Mixing

scholarly journals Flavour Anomalies in a U(1) SUSY Extension of the SM

Symmetry ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 191
Author(s):  
Alexander Bednyakov ◽  
Alfiia Mukhaeva
Keyword(s):  
Standard Model ◽  
Parameter Space ◽  
Gauge Boson ◽  
New Physics ◽  
Low Energy ◽  
Effective Theory ◽  
The Standard Model ◽  
Meson Mixing ◽  
Additional Anomaly ◽  
Lepton Flavour

Flavour anomalies have attracted a lot of attention over recent years as they provide unique hints for possible New Physics. Here, we consider a supersymmetric (SUSY) extension of the Standard Model (SM) with an additional anomaly-free gauge U(1) group. The key feature of our model is the particular choice of non-universal charges to the gauge boson Z′, which not only allows a relaxation of the flavour discrepancies but, contrary to previous studies, can reproduce the SM mixing matrices both in the quark and lepton sectors. We pay special attention to the latter and explicitly enumerate all parameters relevant for our calculation in the low-energy effective theory. We find regions in the parameter space that satisfy experimental constraints on meson mixing and LHC Z′ searches and can alleviate the flavour anomalies. In addition, we also discuss the predictions for lepton-flavour violating decays B+→K+μτ and B+→K+eτ.

scholarly journals Interacting kinks and meson mixing

2019 ◽  
Vol 400 ◽  
pp. 346-365 ◽  
Author(s):  
J.R. Morris
Keyword(s):  
Meson Mixing

QCD corrections to QED and isospin breaking in the baryon spectrum and vector-meson mixing

1991 ◽  
Vol 43 (3) ◽  
pp. 860-868 ◽  
Author(s):  
G. J. Stephenson ◽  
Kim Maltman ◽  
T. Goldman
Keyword(s):  
Vector Meson ◽  
Isospin Breaking ◽  
Baryon Spectrum ◽  
Meson Mixing

scholarly journals Averages of b-hadron, c-hadron, and $$\tau $$-lepton properties as of 2018

2021 ◽  
Vol 81 (3) ◽  
Author(s):  
Y. Amhis ◽  
Sw. Banerjee ◽  
E. Ben-Haim ◽  
F. U. Bernlochner ◽  
M. Bona ◽  
...  
Keyword(s):  
Branching Fractions ◽  
Semileptonic Decays ◽  
Tau Lepton ◽  
Neutral Meson ◽  
Matrix Elements ◽  
Common Input ◽  
Common Values ◽  
Mixing Parameters ◽  
Input Parameters ◽  
Meson Mixing

AbstractThis paper reports world averages of measurements of b-hadron, c-hadron, and $$\tau $$ τ -lepton properties obtained by the Heavy Flavour Averaging Group using results available through September 2018. In rare cases, significant results obtained several months later are also used. For the averaging, common input parameters used in the various analyses are adjusted (rescaled) to common values, and known correlations are taken into account. The averages include branching fractions, lifetimes, neutral meson mixing parameters, $$C\!P$$ C P  violation parameters, parameters of semileptonic decays, and Cabibbo–Kobayashi–Maskawa matrix elements.

Vector-meson mixing and hadronic decays ofψ

1983 ◽  
Vol 28 (11) ◽  
pp. 2767-2771 ◽  
Author(s):  
L. J. Clavelli ◽  
Gerald W. Intemann
Keyword(s):  
Vector Meson ◽  
Hadronic Decays ◽  
Meson Mixing

scholarly journals Renormalization scale setting for D-meson mixing

2020 ◽  
Vol 102 (9) ◽  
Author(s):  
Alexander Lenz ◽  
Maria Laura Piscopo ◽  
Christos Vlahos
Keyword(s):  
D Meson ◽  
Renormalization Scale ◽  
Meson Mixing
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