Results 21 to 30 of about 572 (117)

Neutrino dipole portal at a high energy μ−collider

Journal of High Energy Physics
We study the phenomenology of d = 6 dipole portal operators connecting active and sterile neutrinos at a futuristic muon collider. These operators can be the dominant portal between the Standard Model and the New Physics sector in scenarios in which the ...
Daniele Barducci, Alessandro Dondarini
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Uncovering a chirally suppressed mechanism of 0νββ decay with LHC searches

Journal of High Energy Physics, 2022
∆L = 2 lepton number violation (LNV) at the TeV scale could provide an alternative interpretation of positive signal(s) in future neutrinoless double beta (0νββ) decay experiments.
Michael L. Graesser, Gang Li, Michael J. Ramsey-Musolf, Tianyang Shen, Sebastián Urrutia-Quiroga   +4 more
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Resonant anomaly detection with multiple reference datasets

Journal of High Energy Physics, 2023
An important class of techniques for resonant anomaly detection in high energy physics builds models that can distinguish between reference and target datasets, where only the latter has appreciable signal.
Mayee F. Chen, Benjamin Nachman, Frederic Sala   +2 more
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How many 1-loop neutrino mass models are there?

Journal of High Energy Physics, 2022
It is well-known that at tree-level the d = 5 Weinberg operator can be generated in exactly three different ways, the famous seesaw models. In this paper we study the related question of how many phenomenologically consistent 1-loop models one can ...
Carolina Arbeláez, Ricardo Cepedello, Juan Carlos Helo, Martin Hirsch, Sergey Kovalenko   +4 more
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Oblique corrections from leptoquarks

Journal of High Energy Physics, 2023
We present general formulas for the oblique-correction parameters S, T, U, V, W, and X in a model of New Physics having arbitrary numbers of scalar leptoquarks of the five permissible types.
Francisco Albergaria, Luís Lavoura
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Di-Higgs signatures in neutral naturalness

Journal of High Energy Physics
The Higgs boson was the last fundamental piece of the Standard Model to be experimentally confirmed. LHC is embarked in a quest to probe the possibility that this particle provides a portal to new physics.
Mario W. Barela, Rodolfo Capdevilla
doaj   +1 more source

Interpreting electroweak precision data including the W-mass CDF anomaly

Journal of High Energy Physics, 2022
We perform a global fit of electroweak data, finding that the anomaly in the W mass claimed by the CDF collaboration can be reproduced as a universal new-physics correction to the T parameter or |H † D μ H|2 operator.
Alessandro Strumia
doaj   +1 more source

Neutrino masses in the mirror twin Higgs with spontaneous ℤ 2 breaking

Journal of High Energy Physics
We introduce a mirror twin Higgs model with spontaneous ℤ 2 symmetry breaking that ameliorates the constraints in twin Higgs cosmology and, at the same time, generates the Standard Model neutrino masses.
Pedro Bittar, Davi B. Costa, Gustavo Burdman   +2 more
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Extended color twin Higgs

Journal of High Energy Physics
We describe a novel variation of the mirror twin Higgs model in which the color gauge group in both sectors is extended to SU(4) c and spontaneously broken to SU(3) c exclusively in the visible sector.
Brian Batell, Thomas Cochran, Logan Page, Christopher B. Verhaaren   +3 more
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New physics contributions to moments of inclusive b → c semileptonic decays

Journal of High Energy Physics, 2023
Inclusive semileptonic B → X c ℓ ν ¯ ℓ $$ {X}_c\ell {\overline{\nu}}_{\ell } $$ decays, where ℓ = μ, e, are by now standard candles in the determination of the CKM element |V cb |. These determinations rely on the heavy-quark expansion and use moments of
Matteo Fael, Muslem Rahimi, K. Keri Vos
doaj   +1 more source