Results 81 to 90 of about 1,717 (172)

Probing a long-lived pseudoscalar in type-I 2HDM with displaced vertices and jets at the LHC

Journal of High Energy Physics
In the type-I two-Higgs-doublet model, the pseudoscalar A can act as a long-lived particle (LLP) for sufficiently large values of tan β. At the LHC, the A particles are predominantly produced in pairs through pp → W ∗/Z ∗ → H ± /H A, with subsequent ...
Lei Wang, Zeren Simon Wang, Haotian Xu
doaj   +1 more source

Impact of new experimental data on the C2HDM: the strong interdependence between LHC Higgs data and the electron EDM

Journal of High Energy Physics
The complex two-Higgs doublet model (C2HDM) is one of the simplest extensions of the Standard Model with a source of CP-violation in the scalar sector. It has a $${\mathbb{Z}}_{2}$$ symmetry, softly broken by a complex coefficient. There are four ways to
Thomas Biekötter, Duarte Fontes, Margarete Mühlleitner, Jorge C. Romão, Rui Santos, João P. Silva   +5 more
doaj   +1 more source

process and multi-Higgs doublet model [PDF]

Physics Letters B, 1997
Yasuhiro Okada, Yasuhiro Shimizu, Minoru Tanaka   +2 more
openaire   +1 more source

Neutrino masses in a conformal multi-Higgs-doublet model

, 2018
22 ...
Fink, Manuel, Neufeld, Helmut
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Constraining the Higgs trilinear coupling from an SU(2) quadruplet with bounded-from-below conditions

Journal of High Energy Physics
Integrating out a heavy scalar can cause the Higgs trilinear coupling to deviate from its Standard Model value: a good example is provided by an SU(2) quadruplet. Constraints on the full theory, however, can limit the size of the deviation.
K. Kannike
doaj   +1 more source

Effective 2HDM Yukawa interactions and a strong first-order electroweak phase transition

Journal of High Energy Physics
The top quark as the heaviest particle in the Standard Model (SM) defines an important mass scale for Higgs physics and the electroweak scale itself. It is therefore a well-motivated degree of freedom which could reveal the presence of new interactions ...
Anisha, Duarte Azevedo, Lisa Biermann, Christoph Englert, Margarete Mühlleitner   +4 more
doaj   +1 more source

Sensitivity to triple Higgs couplings via di-Higgs production in the RxSM at the (HL-)LHC and future e + e − colliders

Journal of High Energy Physics
The real Higgs singlet extension of the Standard Model (SM) without Z 2 symmetry, the RxSM, is the simplest extension of the SM that features a First Order Electroweak Phase Transition (FOEWPT) in the early universe. The FOEWPT is one of the requirements
F. Arco, S. Heinemeyer, M. Mühlleitner, A. Parra Arnay, N. Rivero González, A. Verduras Schaeidt   +5 more
doaj   +1 more source

Type-II Seesaw Higgs triplet productions and decays at the LHC

Journal of High Energy Physics
The Type-II Seesaw Model provides an attractive scenario to account for Majorana-neutrino masses. Its extended Higgs sector, if sufficiently light, can have a rich and distinctive phenomenology at the LHC while yielding automatically an essentially ...
Otilia A. Ducu, Ana E. Dumitriu, Adam Jinaru, Romain Kukla, Emmanuel Monnier, Gilbert Moultaka, Alexandra Tudorache, Hanlin Xu   +7 more
doaj   +1 more source

CP violation in the Weinberg multi-Higgs model

, 1995
6 pages Latex, all special macros included. To appear in the proceedings of the conference " Beyond the Standard Model IV " Granlibakken, Lake Tahoe, California, Dec. 13-18 1994. Hosted by the Davis Institute for High Energy Physics. Edited by J. Gunion, T.
openaire   +2 more sources

Loop induced H ± W ∓ Z vertices in the general two Higgs doublet model with CP violation

Journal of High Energy Physics
Understanding symmetry of extended Higgs models helps to construct the theory beyond the standard model and gives important insights for testing these models by experiments.
Shinya Kanemura, Yushi Mura
doaj   +1 more source