Results 1 to 10 of about 96,912 (161)
Unification with vector-like fermions and signals at LHC
Journal of High Energy Physics, 2018 We look for minimal extensions of Standard Model with vector like fermions leading to precision unification of gauge couplings. Constraints from proton decay, Higgs stability and perturbativity are considered.
Biplob Bhattacherjee +3 more
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W boson mass and grand unification via the type-II seesaw-like mechanism
Nuclear Physics B, 2023 We propose an SU(5) GUT model extended with two additional pairs of 10 representation vector-like fermions. The CDF collaboration W boson mass anomaly is explained by using the VEV of a real SU(2)L triplet scalar coming from the 24 representation Higgs ...
Yusuke Shimizu, Shonosuke Takeshita
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Road map through the desert with scalars
Journal of High Energy Physics, 2022 In the context of the gauge coupling unification, we present a comprehensive analysis of the extensions of the Standard Model with vector-like fermions and scalars.
Ubaldo Cavazos Olivas +2 more
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A natural model of spontaneous CP violation
Journal of High Energy Physics, 2022 We examine the possibility of building a natural non-supersymmetric model of spontaneous CP violation equipped with the Nelson-Barr (NB) mechanism to address the strong CP problem.
Sudhakantha Girmohanta +3 more
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Simplified models of vector SU(4) leptoquarks at the TeV
European Physical Journal C: Particles and Fields, 2022 Assuming confirmation of the anomalies in semi-leptonic B-decays, their explanation in terms of the exchange of a massive vector leptoquark field, $$U_{\mu }^a$$ U μ a , of charge 2/3, appears to require the inclusion of $$U_{\mu }^a$$ U μ a in the ...
Riccardo Barbieri +2 more
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Leptonic cascade decays of a heavy Higgs boson through vectorlike leptons at the LHC
Journal of High Energy Physics, 2022 We demonstrate the potential of fully leptonic cascade decays of a heavy neutral Higgs boson through vectorlike leptons as a simultaneous probe for extended Higgs sectors and extra matter particles at the LHC.
Radovan Dermisek +4 more
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Probing an MeV-scale scalar boson in association with a TeV-Scale top-quark partner at the LHC
Journal of High Energy Physics, 2023 Searches for new low-mass matter and mediator particles have actively been pursued at fixed target experiments and at e + e − colliders. It is challenging at the CERN LHC, but they have been searched for in Higgs boson decays and in B meson decays by the
Bhaskar Dutta +5 more
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Wilson coefficients and natural zeros from the on-shell viewpoint
Journal of High Energy Physics, 2022 We show how to simplify the calculation of the finite contributions from heavy particles to EFT Wilson coefficients by using on-shell methods. We apply the technique to the one-loop calculation of g − 2 and Hγγ, showing how finite contributions can be ...
Luigi Delle Rose +2 more
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Current status on pair-produced muon-philic vectorlike leptons in multilepton channels at the LHC
Journal of High Energy Physics, 2023 In this work, we obtain the current limits on the pair production of vectorlike leptons decaying to a Standard Model gauge boson and a lepton in the second generation using the Run-2 data at the LHC.
Junichiro Kawamura, Seodong Shin
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The two scales of new physics in Higgs couplings
Journal of High Energy Physics, 2023 Higgs coupling deviations from Standard Model predictions contain information about two scales of Nature: that of new physics responsible for the deviation, and the scale where new bosons must appear. The two can coincide, but they do not have to.
Raffaele Tito D’Agnolo +3 more
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