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In the next-to-minimal supersymmetric (NMS) Standard Model (SM), it is possible for either one of the additional singlet-like scalar and pseudoscalar Higgs bosons to be almost degenerate in mass with the ~125 GeV SM-like Higgs state. In the…

High Energy Physics - Phenomenology · Physics 2017-08-18 Biswaranjan Das , Stefano Moretti , Shoaib Munir , Poulose Poulose

New physics frameworks like the Next-to-Minimal Supersymmetric Standard Model and the Next-to-2-Higgs-doublet Model contain three neutral CP-even Higgs bosons. It is possible for the heavier two of these states to have masses identical to…

High Energy Physics - Phenomenology · Physics 2021-05-05 Biswaranjan Das , Stefano Moretti , Shoaib Munir , Poulose Poulose

In the Next-to-Minimal Supersymmetric Standard Model (NMSSM), the presence of light pseudoscalars can have a dramatic effect on the decays of the Standard Model-like Higgs boson. These pseudoscalars are naturally light if supersymmetry…

High Energy Physics - Phenomenology · Physics 2008-11-26 David E. Morrissey , Aaron Pierce

We study resonant production of pairs of Standard Model (SM)-like Higgs bosons, in the presence of new neutral Higgs states together with new coloured scalars (stops or sbottoms) in loops within the Next-to-Minimal Supersymmetric SM…

High Energy Physics - Phenomenology · Physics 2025-08-05 Stefano Moretti , Luca Panizzi , Jörgen Sjölin , Harri Waltari

In this work, we investigate the degenerate heavy Higgs bosons in the Next-to-Minimal Supersymmetric Standard Model (NMSSM) by introducing vector-like particles. Such an extension is well motivated from the top-down view since some grand…

High Energy Physics - Phenomenology · Physics 2017-10-11 Fei Wang , Wenyu Wang , Lei Wu , Jin Min Yang , Mengchao Zhang

Many extensions of the Standard Model contain (pseudo)scalar bosons with masses in the TeV range. At hadron colliders, such particles would predominantly be produced in gluon fusion and would decay into top quark pair final sates, a signal…

High Energy Physics - Phenomenology · Physics 2019-05-01 Abdelhak Djouadi , John Ellis , Andrey Popov , Jérémie Quevillon

The heavy, doublet-dominated Higgs bosons expected in Two-Higgs-Doublet-Model-like extensions of the Standard Model are obvious targets for searches at high-energy colliders, and considerable activity in this sense is currently employed in…

High Energy Physics - Phenomenology · Physics 2022-11-23 Florian Domingo , Sebastian Paßehr

We study the Higgs sector of the Next to Minimal Supersymmetric Standard Model (NMSSM) in light of the discovery of the SM-like Higgs boson at the LHC. We perform a broad scan over the NMSSM parameter space and identify the regions that are…

High Energy Physics - Phenomenology · Physics 2015-06-15 Neil D. Christensen , Tao Han , Zhen Liu , Shufang Su

The measurements of the properties of the Higgs boson still leave room for a non minimal scalar sector. Extensions of the Standard Model typically involve multiple neutral Higgs fields which can interfere among themselves. We show that…

High Energy Physics - Phenomenology · Physics 2015-02-05 Ezio Maina

We review possible properties of Higgs bosons in the NMSSM, which allow to discriminate this model from the MSSM: masses of mostly Standard-Model-like Higgs bosons at or above 140 GeV, or enhanced branching fractions into two photons, or…

High Energy Physics - Phenomenology · Physics 2015-05-30 Ulrich Ellwanger

Complex parameters in the MSSM lead to mixing and interference between the two heavier neutral CP-even and CP-odd Higgs states. These effects can become very large in the case of almost degenerate states. In a CP-violating benchmark…

High Energy Physics - Phenomenology · Physics 2017-05-19 Elina Fuchs , Georg Weiglein

There could be another scalar in nature quasi-degenerate with the observed one (h125). This is possible in models such as the Next-to-Minimal Supersymmetric Standard Model (NMSSM). The scenario(s) with a single Higgs boson can be compared…

High Energy Physics - Phenomenology · Physics 2019-05-23 Shehu AbdusSalam

A low mass Standard Model Higgs boson should be visible at the Large Hadron Collider through its production via gluon-gluon fusion and its decay to two photons. We compute the interference of this resonant process, gg -> H -> gamma gamma,…

High Energy Physics - Phenomenology · Physics 2010-11-15 Lance Dixon , M. Stewart Siu

The next-to-minimal supersymmetric standard model (NMSSM) with an extended Higgs sector offers one of the Higgs boson as the Standard model (SM) like Higgs with a mass around 125 GeV along with other Higgs bosons with lighter and heavier…

High Energy Physics - Phenomenology · Physics 2017-04-10 Monoranjan Guchait , Jacky Kumar

The Next-to-Minimal Supersymmetric Standard Model (NMSSM) offers a rich framework embedding physics beyond the Standard Model as well as consistent interpretations of the results about the Higgs signal detected at the LHC. We investigate…

High Energy Physics - Phenomenology · Physics 2018-12-05 Florian Domingo , Sven Heinemeyer , Sebastian Paßehr , Georg Weiglein

We study the phenomenology of Higgs bosons close to 126 GeV within the scale invariant unconstrained next-to-minimal supersymmetric Standard Model (NMSSM), focusing on the regions of parameter space favoured by low fine-tuning…

High Energy Physics - Phenomenology · Physics 2015-06-12 Stephen F. King , Margarete Muhlleitner , Roman Nevzorov , Kathrin Walz

We study the features of the additional Higgs bosons in the Next-to-Minimal Supersymmetric Standard Model where the lightest beyond Standard Model Higgs boson does not dominantly couple to up-type quarks. The new state is dominantly…

High Energy Physics - Phenomenology · Physics 2019-06-04 Debottam Das

The Next-to-Minimal Supersymmetric Standard Model (NMSSM), the singlet extension of the MSSM which fixes many of the MSSM's shortcomings, is shown to be within reach of the upcoming runs of the Large Hadron Collider (LHC). A systematic…

High Energy Physics - Phenomenology · Physics 2019-04-08 Sebastian Baum , Nausheen R. Shah , Katherine Freese

After the discovery of the 125 GeV Higgs boson, the Next-to-Minimal Supersymmetric Standard Model (NMSSM) has become more interesting as a model for new physics since new tree-level contributions to the Higgs mass makes it easier to…

High Energy Physics - Phenomenology · Physics 2015-10-12 N. -E. Bomark , S. Moretti , S. Munir , L. Roszkowski

The Higgs portal interaction to a singlet sector of the standard model (SM) gauge group is widely-studied. In this Letter, we show that a quantum effect is important if the Higgs field mixes with another singlet scalar field whose decay…

High Energy Physics - Phenomenology · Physics 2023-06-28 Kodai Sakurai , Wen Yin
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