Experimental signatures of a light singlet-like scalar in NMSSM

Marcin Badziak; Marek Olechowski; Stefan Pokorski

Experimental signatures of a light singlet-like scalar in NMSSM

High Energy Physics - Phenomenology 2014-06-06 v1

Authors: Marcin Badziak , Marek Olechowski , Stefan Pokorski

Abstract

NMSSM with a light singlet-like scalar and strongly suppressed couplings to $b$ and $\tau$ is investigated. It is shown that in such a scenario the singlet-like scalar to diphoton signal can be larger than for the SM Higgs for a wide range of masses between 60 and 110 GeV, in agreement with all the LEP and LHC data. Enhancement of the singlet-like scalar to diphoton signal is correlated with positive correction to the SM-like Higgs mass from mixing between SM-like Higgs and the singlet. It is also shown that the couplings to $b$ and $\tau$ and, in consequence, branching ratios of the SM-like Higgs are anti-correlated with those of the singlet-like scalar. If the singlet-like scalar to diphoton signal is enhanced, the signal strengths of the 125 GeV Higgs in the diphoton and $WW^*/ZZ^*$ channels are predicted to be smaller than for the SM Higgs.

Keywords

nmssm light singlet-like scalar diphoton signal higgs mass correction coupling suppression lep and lhc data

Cite

@article{arxiv.1406.1492,
  title  = {Experimental signatures of a light singlet-like scalar in NMSSM},
  author = {Marcin Badziak and Marek Olechowski and Stefan Pokorski},
  journal= {arXiv preprint arXiv:1406.1492},
  year   = {2014}
}

Comments

Talk given at 49th Rencontres de Moriond on EW Interactions and Unified Theories, 15-22 March 2014, based on arXiv:1304.5437 and arXiv:1310.4518

Experimental signatures of a light singlet-like scalar in NMSSM

Abstract

Keywords

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