Results 31 to 40 of about 1,567 (100)

Scrutinizing a hidden SM-like gauge model with corrections to oblique parameters

European Physical Journal C: Particles and Fields, 2023
In view of the recent high precision measurement of the Standard Model W boson mass at the CDF II detector, we compute the contributions to the oblique parameters S, T and U coming from the two additional Higgs doublets (one inert and one hidden) as well
Van Que Tran, Thong T. Q. Nguyen, Tzu-Chiang Yuan   +2 more
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CP violation in loop-induced diboson production

Journal of High Energy Physics
We consider the impact of CP-violating Higgs and top interactions on diboson production from gluon fusion within the Standard Model Effective Field Theory framework.
Marion O. A. Thomas, Eleni Vryonidou
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A variant two-Higgs doublet model with a new Abelian gauge symmetry

Physics Letters B, 2019
We consider a two-Higgs doublet model extended with a broken Abelian gauge symmetry under which all Standard Model (SM) quarks, fourth generation fermions and a new SM-singlet scalar boson are charged.
Chuan-Ren Chen, Cheng-Wei Chiang, Kuo-Yen Lin   +2 more
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Search for muon-philic new light gauge boson at Belle II

Journal of High Energy Physics, 2019
Motivated by the long-lasting 3.5σ discrepancy in the anomalous magnetic moment of muon, we consider a new muon-specific force mediated by a light gauge boson, X, with mass m X  
Yongsoo Jho, Youngjoon Kwon, Seong Chan Park, Po-Yan Tseng   +3 more
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Improving fermion mass hierarchy in grand gauge–Higgs unification with localized gauge kinetic terms

European Physical Journal C: Particles and Fields, 2020
Grand gauge–Higgs unification of five dimensional SU(6) gauge theory on an orbifold $$S^1/Z_2$$ S 1 / Z 2 with localized gauge kinetic terms is discussed.
Nobuhito Maru, Yoshiki Yatagai
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Gauge boson signals at the cosmological collider

Journal of High Energy Physics, 2020
We study the production of massive gauge bosons during inflation from the axion-type coupling to the inflaton and the corresponding oscillatory features in the primordial non-Gaussianity.
Lian-Tao Wang, Zhong-Zhi Xianyu
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Gauge boson mass dependence and chiral anomalies in generalized massless Schwinger models

Journal of High Energy Physics
I bosonize the position-space correlators of flavor-diagonal scalar fermion bilinears in arbitrary generalizations of the Schwinger model with n F massless fermions coupled to n A gauge bosons for n F ≥ n A .
Howard Georgi
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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
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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
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W boson mass tension caused by its right-handed gauge coupling at high energies?

Nuclear Physics B, 2022
The CDF collaboration's recent high-precision measurement of the W mass is in 7.0σ disagreement with the Standard Model expectation. This tension will be relieved if the W boson has a non-trivial right-handed gauge coupling at high energies.
She-Sheng Xue
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