Search for a very light NMSSM Higgs boson produced in decays of the 125 GeV scalar boson and decaying into τ leptons in pp collisions at √s=8 TeV

The CMS Collaboration

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

A search for a very light Higgs boson decaying into a pair of τ leptons is presented within the framework of the next-to-minimal supersymmetric standard model. This search is based on a data set corresponding to an integrated luminosity of 19.7 fb−1 of proton-proton collisions collected by the CMS experiment at a centre-of-mass energy of 8 TeV. The signal is defined by the production of either of the two lightest scalars, h1 or h2, via gluon-gluon fusion and subsequent decay into a pair of the lightest Higgs bosons, a1 or h1. The h1 or h2 boson is identified with the observed state at a mass of 125 GeV. The analysis searches for decays of the a1 (h1) states into pairs of τ leptons and covers a mass range for the a1 (h1) boson of 4 to 8 GeV. The search reveals no significant excess in data above standard model background expectations, and an upper limit is set on the signal production cross section times branching fraction as a function of the a1 (h1) boson mass. The 95% confidence level limit ranges from 4.5 pb at ma1(mh1) = 8 GeV to 10.3 pb at ma1(mh1)=5 GeV.

Original languageEnglish
Article number79
Pages (from-to)1-46
Number of pages46
JournalJournal of High Energy Physics
Volume2016
Issue number1
DOIs
Publication statusPublished - 2016 Jan 1

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Higgs bosons
leptons
bosons
scalars
collisions
decay
protons
center of mass
confidence
fusion
luminosity
cross sections
energy

Keywords

  • Hadron-Hadron scattering
  • Higgs physics
  • Supersymmetry

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Search for a very light NMSSM Higgs boson produced in decays of the 125 GeV scalar boson and decaying into τ leptons in pp collisions at √s=8 TeV. / The CMS Collaboration.

In: Journal of High Energy Physics, Vol. 2016, No. 1, 79, 01.01.2016, p. 1-46.

Research output: Contribution to journalArticle

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