Results 61 to 70 of about 1,737 (176)

Long-lived particle phenomenology in the 2HDM+a model

Journal of High Energy Physics, 2023
Higgs decays displaced from the primary interaction vertex represent a striking experimental signature that is actively searched for by the ATLAS, CMS and LHCb collaborations.
Ulrich Haisch, Luc Schnell
doaj   +1 more source

Influence of new states in searches for negative gauge-Higgs couplings

Journal of High Energy Physics
In this work, we explore how constraints based on interference effects for the negative gauge-Higgs coupling scenario are affected by new physics. Models that achieve this wrong-sign gauge-Higgs coupling inevitably have new charged Higgs states.
Carlos Henrique de Lima, Daniel Stolarski   +1 more
doaj   +1 more source

Dimension-8 SMEFT analysis of minimal scalar field extensions of the Standard Model

Journal of High Energy Physics, 2023
We analyze the constraints obtainable from present data using the Standard Model Effective Field Theory (SMEFT) on extensions of the Standard Model with additional electroweak singlet or triplet scalar fields.
John Ellis, Ken Mimasu, Francesca Zampedri   +2 more
doaj   +1 more source

Multi-Higgs Models: model building, phenomenology and renormalization

, 2021
PhD thesis.
openaire   +2 more sources

The infamous 95 GeV b b ¯ $$ \textrm{b}\overline{\textrm{b}} $$ excess at LEP: two b or not two b?

Journal of High Energy Physics
A small deviation observed around 95 GeV in the diphoton invariant mass distribution in the LHC Run 2 data has been subject to considerable attention in the past couple of years.
Patrick Janot
doaj   +1 more source

Precision Higgs width and couplings with a high energy muon collider

Journal of High Energy Physics
The interpretation of Higgs data is typically based on different assumptions about whether there can be additional decay modes of the Higgs or if any couplings can be bounded by theoretical arguments.
Matthew Forslund, Patrick Meade
doaj   +1 more source

Composite 2-Higgs doublet model: strong effects on Higgs pair production

Journal of High Energy Physics
We show how effects of compositeness emerging in a Composite 2-Higgs Doublet Model can enter Standard Model (SM)-like Higgs boson pair production at the Large Hadron Collider in both resonant and non-resonant mode.
Stefania De Curtis, Luigi Delle Rose, Felix Egle, Stefano Moretti, Margarete Mühlleitner, Kodai Sakurai   +5 more
doaj   +1 more source

Electroweak gauge invariant Higgs multiplets

Journal of High Energy Physics
We investigate the potential of general Higgs multiplets. We establish the domain of general Higgs multiplets within the context of the adjoint representation.
M. Maniatis
doaj   +1 more source

Scalar resonances in leptophilic multi-Higgs models

, 1998
REVTEX, 18 pages total, contain 5 eps figures and 1 ...
Montero, J. C., Pires, C. A. de S., Pleitez, V.   +2 more
openaire   +2 more sources

Family symmetries and alignment in multi-Higgs doublet models

Physics Letters B, 2011
The exact alignment of the Yukawa structures on multi-Higgs doublet models provides cancellation of tree-level flavour changing couplings of neutral scalar fields. We show that family symmetries can provide a suitable justification for the Yukawa alignment.
openaire   +3 more sources