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If the soft Supersymmetry (SUSY) breaking masses and couplings are complex and cancelations do take place in the SUSY induced contributions to the fermionic Electric Dipole Moments (EDMs), then the CP-violating soft phases can drastically…

High Energy Physics - Phenomenology · Physics 2009-10-31 A. Dedes , S. Moretti

We investigate the di-Higgs production at the Large Hadron Collider in the two-Higgs doublet model (2HDM). In particular, we study the production of an extra neutral Higgs boson $\phi$ in association with the Standard Model (SM) Higgs boson…

High Energy Physics - Phenomenology · Physics 2023-04-20 Syuhei Iguro , Teppei Kitahara , Yuji Omura , Hantian Zhang

Higgs pair production is not only sensitive to the trilinear Higgs self-coupling, but it can give access to other anomolous couplings, as e.g. a novel $hht\bar{t}$ coupling. In Composite Higgs Models, this coupling usually leads to a large…

High Energy Physics - Phenomenology · Physics 2018-02-14 Ramona Gröber

We study the cross-section of heavy Higgs production at the LHC within the framework of the Constrained MSSM. It is not only enhanced by tan^2 beta but sometimes is also enhanced by the squark contribution. First, we consider the universal…

High Energy Physics - Phenomenology · Physics 2011-10-17 A. V. Bednyakov , D. I. Kazakov , S. H. Tanyildizi

We investigate resonant di-Higgs production as a means of probing extended scalar sectors that include a 125 GeV Standard Model-like Higgs boson. For concreteness, we consider a gauge singlet Higgs portal scenario leading to two mixed…

High Energy Physics - Phenomenology · Physics 2014-06-11 Jose M. No , Michael Ramsey-Musolf

Current projections suggest that the LHC will have only limited sensitivity to di-Higgs production in the Standard Model (SM), possibly even after the completion of its high luminosity phase. Multi-Higgs final states play a fundamental role…

High Energy Physics - Phenomenology · Physics 2019-04-03 Philipp Basler , Sally Dawson , Christoph Englert , Milada M. Mühlleitner

The program HiggsSignals confronts the predictions of models with arbitrary Higgs sectors with the available Higgs signal rate and mass measurements, resulting in a likelihood estimate. A new version of the program, HiggsSignals-2, is…

High Energy Physics - Phenomenology · Physics 2021-02-24 Philip Bechtle , Sven Heinemeyer , Tobias Klingl , Tim Stefaniak , Georg Weiglein , Jonas Wittbrodt

Strategies for Higgs boson searches require the knowledge of the total production cross section and the transverse momentum spectrum. The large transverse momentum spectrum of the Higgs boson produced in gluon fusion can be quite different…

High Energy Physics - Phenomenology · Physics 2009-11-11 U. Langenegger , M. Spira , A. Starodumov , P. Trueb

A Higgs boson produced in association with one or more bottom quarks is of great theoretical and experimental interest to the high-energy community. A precise prediction of its total and differential cross-section can have a great impact on…

High Energy Physics - Phenomenology · Physics 2008-11-26 B. Field , C. B. Jackson , L. Reina

Triple Higgs boson production (3H) may provide essential information to reconstruct the Higgs potential. We consider 3H-production in the International Linear Collider (ILC) both in the Minimal Supersymmetric Standard Model (MSSM) and in…

High Energy Physics - Phenomenology · Physics 2008-11-26 Giancarlo Ferrera , Jaume Guasch , David Lopez-Val , Joan Sola

Higgs physics at hadron colliders as the LHC is reviewed within the Standard Model (SM) and its minimal supersymmetric extension (MSSM) by summarizing the present state-of-the-art of theoretical predictions for the production cross sections…

High Energy Physics - Phenomenology · Physics 2021-03-15 Michael Spira

We consider the gluon fusion production cross section of a scalar Higgs boson in models where fermion and scalar massive colored particles are present. We report analytic expressions for the matrix elements of $gg\to Hg$, $q\bar{q}\to Hg$,…

High Energy Physics - Phenomenology · Physics 2009-04-23 R. Bonciani , G. Degrassi , A. Vicini

We analyze and compute, within a number of standard model (SM) extensions, the cross sections $\sigma_{A\to VV'}$ for the production of a heavy neutral pseudoscalar Higgs boson/spin-zero resonance at the LHC and its subsequent decays into…

High Energy Physics - Phenomenology · Physics 2011-03-28 Werner Bernreuther , Patrick Gonzalez , Martin Wiebusch

We investigate Higgs boson production process via gluon fusion at LHC in our six dimensional universal extra dimension model compactified on a spherical orbifold S^2/Z_2. We find a striking result that Higgs production cross section in our…

High Energy Physics - Phenomenology · Physics 2014-11-20 Nobuhito Maru , Takaaki Nomura , Joe Sato , Masato Yamanaka

The coupling of Higgs with gauge bosons can receive non-decoupling corrections due to heavy quanta. Deviation from the SM predictions are described by a set of parameters e_V, which can be related to the parameters S,T. The Higgs production…

High Energy Physics - Phenomenology · Physics 2007-05-23 J. Lorenzo Diaz-Cruz

The cross sections for the multiple production of the lightest neutral Higgs boson at high--energy $e^+ e^-$ colliders are presented in the framework of the Minimal Supersymmetric extension of the Standard Model (MSSM). We consider…

High Energy Physics - Phenomenology · Physics 2009-10-28 A. Djouadi , H. E. Haber , P. M. Zerwas

In this contribution a brief review about the status of higher order corrections to Higgs boson production within the Minimal Supersymmetric Standard Model (MSSM) is given. Furthermore the first activities towards third-order corrections in…

High Energy Physics - Phenomenology · Physics 2015-06-16 Matthias Steinhauser

We analyse the predictions of both Higgs and top masses in a generic MSSM satisfying gauge-coupling unification, radiative electroweak symmetry breaking, with a natural (non-splitted) spectrum of soft-breaking terms, and an arbitrary…

High Energy Physics - Phenomenology · Physics 2018-06-06 Gino Isidori , Andrea Pattori

One of the simplest extensions of the Standard Model (SM) is the two-Higgs-doublet model (2HDM), which contains two neutral Higgs bosons, in addition to a 125 GeV one, and a charged pair. At the Large Hadron Collider (LHC), gluon-induced…

High Energy Physics - Phenomenology · Physics 2019-01-01 Rikard Enberg , William Klemm , Stefano Moretti , Shoaib Munir

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…

High Energy Physics - Phenomenology · Physics 2022-09-14 Hamza Abouabid , Abdesslam Arhrib , Duarte Azevedo , Jaouad El Falaki , Pedro. M. Ferreira , Margarete Muhlleitner , Rui Santos