Fully covering the MSSM Higgs sector at the LHC

By Abdelhak Djouadi, L. Maiani, A. Polosa, J. Quevillon, V. Riquer. 2015

164 citations recorded by the source corpus.

A bstractIn the context of the Minimal Supersymmetric extension of the Standard Model (MSSM), we reanalyze the search for the heavier CP-even H and CP-odd A neutral Higgs bosons at the LHC in their production in the gluon-fusion mechanism and their decays into gauge and lighter h bosons and into top quark pairs. We show that only when considering these processes, that one can fully cover the entire parameter space of the Higgs sector of the model. Indeed, they are sensitive to the low tan β and high Higgs mass ranges, complementing the traditional searches for high mass resonances decaying into τ -lepton pairs which are instead sensitive to the large and moderate tan β regions. The complementarity of the various channels in the probing of the complete [tan β, MA] MSSM parameter space at the previous and upcoming phases of the LHC is illustrated in a recently proposed simple and model independent approach for the Higgs sector, the hMSSM, that we also refine in this paper.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/7b3862ca4b9f1f1df9eb50bfd39fd0a693ebe53b

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Citations in the corpus

Simplified dark matter models with two Higgs doublets: I. Pseudoscalar mediators (2017, background): “The pp → H/A → tt̄ channel provides hence an interesting but challenging opportunity for hadron colliders to search for additional spin-0 bosons (see for instance [54, 55] for recent phenomenological discussions).”
Dark Matter through the Higgs portal (2019, methodology): “Figure 87: The CP–even H mass as a function of MA for representative tan β values (left) and the coupling squared cos2(β−α) in the [MA, tan β] plane (right) in the hMSSM [422].”
Constraints on new phenomena via Higgs boson couplings and invisible decays with the ATLAS detector (2015, background): “the mass matrix of the neutral CP-even Higgs bosons h and H can be written as [81]:”
The hunt for the rest of the Higgs bosons (2015, background): “look for new Higgs states heavier than about 350 GeV and with SM-like coupling strength to the top quark is in gg!H=A!tt. It has been known since the seminal work of [39] (and recently emphasized in [37]) that this channel provides an interesting and challenging opportunity for hadron colliders. In ”