scholarly journals Psuedo-Scalar Current and Weak Type Interaction in Fourth Generation Quarks Models

2020 ◽  
Author(s):  
Aayush Verma
Keyword(s):  
Standard Model ◽  
Gauge Boson ◽  
Weak Type ◽  
Fourth Generation ◽  
Vector Gauge ◽  
Type Interaction ◽  
Scalar Current

In this note, the toy-model of Fourth Generation quarks coupling to Standard Model particles through unknown Lagrangian has been figured. Eventually producing a 103 TeV vector gauge boson, which is a special gauge boson that appears in unification models and here as a mediator for WeakSM4 interaction. Another anomaly of different gauge boson has been reported.

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.

TeV Scale B – L Phenomenology at LHC

2007 ◽  
Vol 22 (31) ◽  
pp. 5889-5908 ◽  
Author(s):  
M. Abbas ◽  
W. Emam ◽  
S. Khalil ◽  
M. Shalaby
Keyword(s):  
Standard Model ◽  
Gauge Boson ◽  
Cross Sections ◽  
Branching Ratios ◽  
Higgs Production ◽  
Neutrino Masses ◽  
Natural Explanation ◽  
The Standard Model ◽  
The Cross

We present the phenomenology of the low scale U(1)B–L extension of the standard model and its implications at LHC. We show that this model provides a natural explanation for the presence of three right-handed neutrinos and can naturally account the observed neutrino masses and mixing. We study the decay and production of the extra gauge boson and the SM singlet scalar (heavy Higgs) predicted in this type of models. We find that the cross sections of the SM-like Higgs production are reduced by ~ 20% – 30%, while its decay branching ratios remain intact. The extra Higgs has relatively small cross sections and the branching ratios of Z′ → l+l− are of order ~ 20% compared to ~ 3% of the SM results.

scholarly journals NLO+NLL limits on W′ and Z′ gauge boson masses in general extensions of the Standard Model

2014 ◽  
Vol 2014 (12) ◽  
Author(s):  
Tomáš Ježo ◽  
Michael Klasen ◽  
David R. Lamprea ◽  
Florian Lyonnet ◽  
Ingo Schienbein
Keyword(s):  
Standard Model ◽  
Gauge Boson ◽  
The Standard Model

scholarly journals Fourth-generation standard model imprints inB→K*ℓ+ℓ−decays with polarizedK*

2012 ◽  
Vol 85 (3) ◽  
Author(s):  
Aqeel Ahmed ◽  
Ishtiaq Ahmed ◽  
M. Jamil Aslam ◽  
M. Junaid ◽  
M. Ali Paracha ◽  
...  
Keyword(s):  
Standard Model ◽  
Fourth Generation

EFFECTS OF AN EXTRA NEUTRAL E6 GAUGE BOSON IN e+e− ANNIHILATION INTO HADRONS

1988 ◽  
Vol 03 (12) ◽  
pp. 2959-2970
Author(s):  
F. CSIKOR ◽  
E. LENDVAI ◽  
G. PÓCSIK
Keyword(s):  
Standard Model ◽  
Gauge Boson ◽  
Cross Sections ◽  
Total Cross Sections ◽  
The Standard Model ◽  
Azimuthal Asymmetries

We calculate the influence of an extra neutral E6 gauge boson on the energy weighted and total cross sections in e+e− annihilation into hadrons. Longitudinal and azimuthal asymmetries are sensitive to the various extra U(1) factors and can show noticeable deviations from the standard model.

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