scholarly journals Sub-GeV U(1)R gauge boson to address the proton radius discrepancy

2021 ◽  
Vol 104 (11) ◽  
Author(s):  
Carlos Alvarado ◽  
Alfredo Aranda ◽  
Cesar Bonilla
Keyword(s):  
Gauge Boson ◽  
Proton Radius

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 Pair production of the heavy leptons associated with a gauge boson γ or Z at the ILC

2012 ◽  
Vol 860 (1) ◽  
pp. 152-166 ◽  
Author(s):  
Qing-Guo Zeng ◽  
Chong-Xing Yue ◽  
Jiao Zhang
Keyword(s):  
Pair Production ◽  
Gauge Boson ◽  
Heavy Leptons

GAUGE BOSON MASSES FROM FERMION MASSES?

1992 ◽  
Vol 07 (22) ◽  
pp. 1991-1996 ◽  
Author(s):  
R. FOOT ◽  
S. TITARD
Keyword(s):  
Gauge Boson ◽  
Z Boson ◽  
Heavy Fermions ◽  
Mass Matrix ◽  
Gauge Bosons ◽  
Fermion Masses ◽  
The Masses

We examine the possibility that the masses of the W and Z gauge bosons are induced radiatively from the masses of heavy fermions. From experiment we know that [Formula: see text][Formula: see text]. We point out that this relation can be naturally obtained if the W and Z boson masses are radiatively generated from heavy fermions which arise from a mass matrix which has large electroweak violating masses as well as very large electroweak invariant masses. Two examples of this are considered: The usual see-saw neutrino model and the SU(5)c/quark-lepton symmetric models.

A NONSTANDARD TRIPLE GLUON DECAY

1995 ◽  
Vol 10 (02) ◽  
pp. 115-120
Author(s):  
XIN-ZHOU LI ◽  
JIAN-ZU ZHANG
Keyword(s):  
Production Process ◽  
Gauge Boson ◽  
Effective Action ◽  
Boson Production

In this letter we show a nonstandard decay of technion P0′ into three gluons in Wess–Zumino-type effective action in the technicolor scheme. The implication of this new anomaly gauge boson production process is discussed.

scholarly journals The proton radius (puzzle?) and its relatives

2021 ◽  
pp. 103901
Author(s):  
Clara Peset ◽  
Antonio Pineda ◽  
Oleksandr Tomalak
Keyword(s):  
Proton Radius ◽  
Proton Radius Puzzle

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.

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