scholarly journals Self-cancellation of a scalar in neutral meson mixing and implications for the LHC

2015 ◽  
Vol 92 (8) ◽  
Author(s):  
M. Nebot ◽  
João P. Silva
Keyword(s):  
Neutral Meson ◽  
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.

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 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 Critical basis dependence in bounding R-parity breaking couplings from neutral meson mixing

1999 ◽  
Vol 446 (3-4) ◽  
pp. 285-289 ◽  
Author(s):  
Katri Huitu ◽  
Kai Puolamäki ◽  
Da-Xin Zhang
Keyword(s):  
Neutral Meson ◽  
Meson Mixing ◽  
Parity Breaking

UNPARTICLE PHYSICS AND NEUTRAL MESON MIXING

2008 ◽  
Vol 23 (21) ◽  
pp. 3339-3342 ◽  
Author(s):  
ZHENG-TAO WEI
Keyword(s):  
Scale Invariance ◽  
Tree Level ◽  
Neutral Meson ◽  
Meson Mixing

The concept of exact and broken scale invariance is discussed. We give a brief introduction to unparticle physics. The neutral meson mixing can be caused by exchange of unparticle at the tree level. The constraints on interaction between unparticle and SM quarks are discussed.

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