Results 41 to 50 of about 1,737 (176)

Symmetry and mass degeneration in multi-Higgs-doublet models [PDF]

Journal of High Energy Physics, 2011
20 pages.
Olaussen, Kåre, Osland, Per, Solberg, Marius Aase   +2 more
openaire   +7 more sources

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, W. Kotlarski, M. N. Rebelo, I. de Medeiros Varzielas   +3 more
doaj   +1 more source

CP violation in a model with Higgs triplets

Journal of High Energy Physics, 2023
We discuss CP-violation in a model with a real and a complex isospin triplet Higgs fields without introducing any symmetries except for the electroweak gauge symmetry.
Ting-Kuo Chen, Cheng-Wei Chiang, Kei Yagyu   +2 more
doaj   +1 more source

Nullification of multi-Higgs threshold amplitudes in the standard model [PDF]

Physics Letters B, 1993
We show that nullification of all tree-order threshold amplitudes involving Higgs particles in the Standard Model occurs, provided that certain equations relating the masses of all existing elementary particles to the mass of the Higgs scalar are satisfied.
Costas G. Papadopoulos, Ronald Kleiss, E.N. Argyres   +2 more
openaire   +3 more sources

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, Rodrigo Capucha, António Onofre, Rui Santos   +3 more
doaj   +1 more source

Multi-Higgs boson production in the standard model and beyond [PDF]

Physical Review D, 2006
17 pages, 17 ...
T. Binoth, Reinhold Rückl, Nikolas Kauer, S. Karg   +3 more
openaire   +2 more sources

Benchmarking di-Higgs production in various extended Higgs sector models

Journal of High Energy Physics, 2022
We present a comprehensive study on Higgs pair production in various archetypical extended Higgs sectors such as the real and the complex 2-Higgs-Doublet Model, the 2-Higgs-Doublet Model augmented by a real singlet field and the Next-to-Minimal ...
Hamza Abouabid, Abdesslam Arhrib, Duarte Azevedo, Jaouad El Falaki, Pedro M. Ferreira, Margarete Mühlleitner, Rui Santos   +6 more
doaj   +1 more source

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, Marcela Carena, Nina M. Coyle, Aurora Ireland, Carlos E. M. Wagner   +4 more
doaj   +1 more source

process and multi-Higgs doublet model [PDF]

Physics Letters B, 1997
Rare $b$ decay processes are analyzed in the multi-Higgs doublet model. Taking account of the constraint from the $b\to s $ process, the branching ratio and the forward-backward asymmetry of the final leptons for the $b\to s \ell^+ \ell^-$ process are calculated.
Yasuhiro Shimizu, Yasuhiro Shimizu, Minoru Tanaka, Yasuhiro Okada   +3 more
openaire   +4 more sources

Minima of multi-Higgs potentials with triplets of Δ(3n2) and Δ(6n2)

Physics Letters B, 2017
We analyse the minima of scalar potentials for multi-Higgs models where the scalars are arranged as either one triplet or two triplets of the discrete symmetries A4, S4, Δ(27), Δ(54), as well as Δ(3n2) and Δ(6n2) with n>3.
Ivo de Medeiros Varzielas, Stephen F. King, Christoph Luhn, Thomas Neder   +3 more
doaj   +1 more source