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Title: Search for a very light NMSSM Higgs boson produced in decays of the 125 GeV scalar boson and decaying into $$\tau$$ leptons in pp collisions at $$\sqrt{s} =$$ 8 TeV

Abstract

Our search for a very light Higgs boson decaying into a pair of t 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, h 1 or h 2, via gluon-gluon fusion and subsequent decay into a pair of the lightest Higgs bosons, a 1 or h 1. The h 1 or h 2 boson is identified with the observed state at a mass of 125 GeV. The analysis searches for decays of the a 1 (h 1) states into pairs of t leptons and covers a mass range for the a 1 (h 1) boson of 4 to 8 GeV. Furthermore, 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 a 1 (h 1) boson mass. The 95% confidence level limit ranges from 4.5 pb at mamore » 1 (mh 1 ) = 8 GeV to 10.3 pb at ma 1 (mh 1 ) = 5 GeV.« less

Authors:
 [1]
  1. Yerevan Physics Inst. (YerPhI) (Armenia). et al.
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Org.:
CMS Collaboration
OSTI Identifier:
1226348
Report Number(s):
FERMILAB-PUB-15-461-CMS
Journal ID: ISSN 1029-8479; arXiv eprint number arXiv:1510.06534
Grant/Contract Number:  
AC02-07CH11359
Resource Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2016; Journal Issue: 079; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Khachatryan, Vardan. Search for a very light NMSSM Higgs boson produced in decays of the 125 GeV scalar boson and decaying into $\tau$ leptons in pp collisions at $\sqrt{s} =$ 8 TeV. United States: N. p., 2016. Web. doi:10.1007/JHEP01(2016)079.
Khachatryan, Vardan. Search for a very light NMSSM Higgs boson produced in decays of the 125 GeV scalar boson and decaying into $\tau$ leptons in pp collisions at $\sqrt{s} =$ 8 TeV. United States. doi:10.1007/JHEP01(2016)079.
Khachatryan, Vardan. Wed . "Search for a very light NMSSM Higgs boson produced in decays of the 125 GeV scalar boson and decaying into $\tau$ leptons in pp collisions at $\sqrt{s} =$ 8 TeV". United States. doi:10.1007/JHEP01(2016)079. https://www.osti.gov/servlets/purl/1226348.
@article{osti_1226348,
title = {Search for a very light NMSSM Higgs boson produced in decays of the 125 GeV scalar boson and decaying into $\tau$ leptons in pp collisions at $\sqrt{s} =$ 8 TeV},
author = {Khachatryan, Vardan},
abstractNote = {Our search for a very light Higgs boson decaying into a pair of t 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 t leptons and covers a mass range for the a1 (h1) boson of 4 to 8 GeV. Furthermore, 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.},
doi = {10.1007/JHEP01(2016)079},
journal = {Journal of High Energy Physics (Online)},
number = 079,
volume = 2016,
place = {United States},
year = {2016},
month = {1}
}

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    Works referencing / citing this record:

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    journal, November 2007


    Observation of the diphoton decay of the Higgs boson and measurement of its properties
    journal, October 2014


    Presentation of search results: the CL s technique
    journal, September 2002


    Natural NMSSM Higgs bosons
    journal, May 2013


    Fermion masses and induction of the weak scale by supergravity
    journal, July 1983


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    journal, July 2005


    Search for a low mass CP-odd Higgs boson in $\mathrm{e^+e^-}$ collisions with the OPAL detector at LEP2
    journal, April 2003


    Parton distributions for the LHC
    journal, July 2009


    A search for pair production of new light bosons decaying into muons
    journal, January 2016


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    journal, November 2010


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    journal, January 2004


    NMSSM Higgs benchmarks near 125 GeV
    journal, July 2012


    A New Method for Combining NLO QCD with Shower Monte Carlo Algorithms
    journal, November 2004


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    journal, April 1984


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    journal, September 2012


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    Transverse-momentum resummation and the spectrum of the Higgs boson at the LHC
    journal, March 2006


    Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
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    NLO Higgs boson production via gluon fusion matched with shower in POWHEG
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    New Generation of Parton Distributions with Uncertainties from Global QCD Analysis
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