Results 101 to 110 of about 422,922 (221)

Renormalization of a Standard Model extension with a Dark Abelian Sector and predictions for the W-boson mass

Journal of High Energy Physics
The described Dark Abelian Sector Model (DASM) extends the Standard Model (SM) by a “dark” sector containing a spontaneously broken U(1)d gauge group. Keeping this dark sector quite generic we only add one additional Higgs boson, one Dirac fermion, and ...
Stefan Dittmaier, Jonas Rehberg, Heidi Rzehak   +2 more
doaj   +1 more source

Spectroscopy of family gauge bosons

Physics Letters B, 2014
Spectroscopy of family gauge bosons is investigated based on a U(3) family gauge boson model proposed by Sumino. In his model, the family gauge bosons are in mass eigenstates in a diagonal basis of the charged lepton mass matrix.
Yoshio Koide
doaj   +1 more source

QED and QCD helicity amplitudes in parton-shower gauge

European Physical Journal C: Particles and Fields, 2020
We introduce photon and gluon propagators in which the scalar polarization component is subtracted systematically by making use of the BRST invariance of the off-shell vector boson created from physical on-shell states.
Kaoru Hagiwara, Junichi Kanzaki, Kentarou Mawatari   +2 more
doaj   +1 more source

Anomalous gauge couplings of the Higgs boson at the LHC II: Study of additional backgrounds in semileptonic mode of WW scatterings [PDF]

, 2022
Yonghui Qi, Yu-Ping Kuang
openalex   +1 more source

Light gauge boson in rare K decay

Physics Letters B, 2016
We study the production of a light gauge boson in K−→π−X decay, where the associated new charge current is not conserved. It is found that the process can be generated by the tree-level W-boson annihilation and loop-induced s→dX. We find that it strongly
Chuan-Hung Chen, Takaaki Nomura
doaj   +1 more source

Kinetic mixing and symmetry breaking dependent interactions of the dark photon

Nuclear Physics B, 2014
We examine spontaneous symmetry breaking of a renormalisable U(1)×U(1) gauge theory coupled to fermions when kinetic mixing is present. We do not assume that the kinetic mixing parameter is small.
Biswajoy Brahmachari, Amitava Raychaudhuri   +1 more
doaj   +1 more source

Nonstandard Quartic Self Interactions of Electroweak Vector Bosons within a Gauge Invariant Higher-Derivative Term [PDF]

, 2022
Carsten Grosse-Knetter
openalex   +1 more source

New physics search with the new gauge boson Z′ of the bestest little Higgs model at the muon collider

Nuclear Physics B
The Bestest Little Higgs Model (BLHM) has attracted increasing attention in recent years, mainly because it can explain the hierarchy problem without fine-tuning by introducing one-loop corrections to the Higgs boson mass through heavy top quark partners
A. Gutiérrez-Rodríguez, E. Cruz-Albaro, D. Espinosa-Gómez, T. Cisneros-Pérez, David A. Pérez-Carlos   +4 more
doaj   +1 more source

GAUGE INVARIANCE AND ANOMALOUS GAUGE BOSON COUPLINGS [PDF]

, 2022
Joannis Papavassiliou, Kostas Philippides   +1 more
openalex   +1 more source

Gauge-Higgs Unification Models in Six Dimensions with S2/Z2 Extra Space and GUT Gauge Symmetry

Advances in High Energy Physics, 2012
We review gauge-Higgs unification models based on gauge theories defined on six-dimensional spacetime with S2/Z2 topology in the extra spatial dimensions. Nontrivial boundary conditions are imposed on the extra S2/Z2 space.
Cheng-Wei Chiang, Takaaki Nomura, Joe Sato   +2 more
doaj   +1 more source