scholarly journals Constraining CP violation in neutral meson mixing with theory input

2013 ◽  
Author(s):  
Sascha Turczyk ◽  
Marat Freytsis ◽  
Zoltan Ligeti
Keyword(s):  
Cp Violation ◽  
Neutral Meson ◽  
Meson Mixing

scholarly journals THE NORMALIZATION EFFECT OF NEUTRAL B0MESON ASYMMETRY

2006 ◽  
Vol 21 (12) ◽  
pp. 985-989
Author(s):  
J. C. YOON
Keyword(s):  
Cp Violation ◽  
Decay Rate ◽  
Experimental Analysis ◽  
B Physics ◽  
Neutral Meson ◽  
Normalization Effect

In the study of CP violation asymmetry in CPLEAR, the decay rate of neutral meson is normalized and its experimental analysis has been well established, while normalization effect has been considered in B physics. After investigation on the normalization effect in BABAR, we conclude that it can be justified to neglect this effect due to the suppressed decays that are contributed from both B0and [Formula: see text].

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.

scholarly journals THE EFFECT OF Z′ BOSON ON SAME-SIGN DIMUON CHARGE ASYMMETRY IN $B_q^0-\overline{B_q^0}$ SYSTEM

2013 ◽  
Vol 28 (15) ◽  
pp. 1350060 ◽  
Author(s):  
S. SAHOO ◽  
M. KUMAR ◽  
D. BANERJEE
Keyword(s):  
Model Prediction ◽  
Z Boson ◽  
Recent Observation ◽  
Standard Model Prediction ◽  
Charge Asymmetry ◽  
New Physics ◽  
Neutral Meson ◽  
Flavor Changing ◽  
The Standard Model ◽  
Meson Mixing

The recent observation of the same-sign dimuon charge asymmetry in the B system by the D0 collaboration has 3.9σ deviation from the standard model prediction. However, the recent LHCb data on Bs neutral-meson mixing do not accommodate the D0 collaboration result. In this paper, considering the effect of Z′-mediated flavor-changing neutral currents in the [Formula: see text] mixing, the same-sign dimuon charge asymmetry is calculated. We find the same-sign dimuon charge asymmetry is enhanced from its SM prediction and provides signals for new physics beyond the SM.

scholarly journals Mixing and CPV in Charm Hadrons at LHCb

2018 ◽  
Vol 46 ◽  
pp. 1860067
Author(s):  
Wojciech Krzemien
Keyword(s):  
Cp Violation ◽  
Standard Model ◽  
D Meson ◽  
Charm Physics ◽  
Mixing Parameters ◽  
The Standard Model ◽  
Model Understanding ◽  
Meson Mixing ◽  
Neutral D Meson

LHCb continues to expand its world-leading sample of charmed hadrons collected during LHCs Run 1 (2010-2012) and Run 2 (2015-present). This sample is yielding some of the most stringent tests of the Standard Model understanding of charm physics. This includes precise measurements of the neutral D-meson mixing parameters and some of the most sensitive searches for direct and indirect CP violation in charm interactions.

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