Results 41 to 50 of about 9,485,608 (197)
The invariant space of multi-Higgs doublet models [PDF]
Journal of High Energy Physics, 2021 Abstract In a model with more than one scalar doublet, the parameter space encloses both physical and unphysical information. Invariant theory provides a detailed description of the counting and characterization of the physical parameter space. The Hilbert series for the 3HDM is computed for the first time using partition analysis,
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3HDM with ∆(27) symmetry and its phenomenological consequences
Journal of High Energy Physics, 2023 We perform a comprehensive analysis of a version of the 3-Higgs doublet model whose scalar potential is invariant under a global ∆(27) discrete symmetry and where the three scalar doublets are chosen to transform as a triplet under this discrete group ...
J. Kalinowski +3 more
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Single charged Higgs boson production at next generation linear colliders [PDF]
, 2000 We study the single production of charged Higgs bosons in e+e- collisions, chiefly in the Minimal Supersymmetric Standard Model. Our analysis complements foregoing studies of the pair production channel especially in regions where the kinematic ...
Moretti, S. +5 more
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A precision constraint on multi-Higgs-doublet models [PDF]
Journal of Physics G: Nuclear and Particle Physics, 2008 We derive a general expression for Delta rho (or, equivalently, for the oblique parameter T) in the SU(2) x U(1) electroweak model with an arbitrary number of scalar SU(2) doublets, with hypercharge +-1/2, and an arbitrary number of scalar SU(2) singlets.
Grimus, Walter +3 more
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, 1999 Abstract The scalar sector of the standard model (SM) consists of only one doublet with weak hypercharge Y = 1/2. Most extensions of the SM include an enlargement of the Higgs sector. There are many theoretical motivations to enlarge the scalar sector of the standard electroweak theory, even if one only considers extensions of that ...
Gustavo Castelo Branco +2 more
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New tools for dissecting the general 2HDM
Journal of High Energy Physics, 2023 Two Higgs doublet models (2HDM) provide the low energy effective theory (EFT) description in many well motivated extensions of the Standard Model. It is therefore relevant to study their properties, as well as the theoretical constraints on these models.
Henning Bahl +4 more
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Limits on the production of the standard model Higgs boson in pp collisions at root s=7 TeV with the ATLAS detector [PDF]
, 2011 A search for the Standard Model Higgs boson at the Large Hadron Collider (LHC) running at a centre-of-mass energy of 7 TeV is reported, based on a total integrated luminosity of up to 40 pb(-1) collected by the ATLAS detector in 2010. Several Higgs boson
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Collider phenomenology of new neutral scalars in a flavored multi-Higgs model
Physical Review D, 2023 In this work, we propose and explore for the first time a new collider signature of heavy neutral scalars typically found in many distinct classes of multi-Higgs models. This signature, particular relevant in the context of the Large Hadron Collider (LHC) measurements, is based on a topology with two charged leptons and four jets arising from first and
Ferreira, Pedro +5 more
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CP-violation, asymmetries and interferences in t t ¯ ϕ $$ t\overline{t}\phi $$
Journal of High Energy Physics, 2022 In this paper, we use the associated production of top-quark pairs ( t t ¯ $$ t\overline{t} $$ ) with a generic scalar boson (ϕ) at the LHC (pp → t t ¯ ϕ $$ t\overline{t}\phi $$ ) to explore the sensitivity of a large set of observables to the sign of ...
Duarte Azevedo +3 more
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Symmetries in multi-Higgs-doublet models
, 2012 We report the recent progress in understanding of symmetries which can be implemented in the scalar sector of electroweak symmetry breaking models with several Higgs doublets. In particular we present the list of finite reparametrization symmetry groups which can appear in the three-Higgs-doublet models.
Ivanov, Igor, Vdovin, Evgeny
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