DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

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, 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 ) =more » 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)
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. https://doi.org/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. https://doi.org/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 = {Wed Jan 13 00:00:00 EST 2016},
month = {Wed Jan 13 00:00:00 EST 2016}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 12 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

Higgs bosons at 98 and 125 GeV at LEP and the LHC
journal, January 2013

  • Bélanger, Geneviève; Ellwanger, Ulrich; Gunion, John F.
  • Journal of High Energy Physics, Vol. 2013, Issue 1
  • DOI: 10.1007/JHEP01(2013)069

NMSSM Higgs benchmarks near 125 GeV
journal, July 2012


The Next-to-Minimal Supersymmetric Standard Model
journal, November 2010


The μ-problem and the strong CP-problem
journal, April 1984


Measurement of the properties of a Higgs boson in the four-lepton final state
journal, May 2014


A general framework for implementing NLO calculations in shower Monte Carlo programs: the POWHEG BOX
journal, June 2010

  • Alioli, Simone; Nason, Paolo; Oleari, Carlo
  • Journal of High Energy Physics, Vol. 2010, Issue 6
  • DOI: 10.1007/JHEP06(2010)043

Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
journal, September 2012


PYTHIA 6.4 physics and manual
journal, May 2006


Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
journal, September 2012


The MSSM fine tuning problem: a way out
journal, January 2004


The τ decay library TAUOLA, version 2.4
journal, August 1993


Quantum effects and SU(2)×U(1) breaking in supergravity gauge theories
journal, May 1984


Natural NMSSM Higgs bosons
journal, May 2013


Transverse-momentum resummation: Higgs boson production at the Tevatron and the LHC
journal, November 2011

  • de Florian, Daniel; Ferrera, Giancarlo; Grazzini, Massimiliano
  • Journal of High Energy Physics, Vol. 2011, Issue 11
  • DOI: 10.1007/JHEP11(2011)064

Escaping the Large Fine-Tuning and Little Hierarchy Problems in the Next to Minimal Supersymmetric Model and h a a Decays
journal, July 2005


Matching NLO QCD computations with parton shower simulations: the POWHEG method
journal, November 2007


Weak interaction breakdown induced by supergravity
journal, January 1983


Diagnosing Degenerate Higgs Bosons at 125 GeV
journal, January 2013


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


NLO Higgs boson production via gluon fusion matched with shower in POWHEG
journal, April 2009


Observation and measurement of Higgs boson decays to W W * with the ATLAS detector
journal, July 2015


New Generation of Parton Distributions with Uncertainties from Global QCD Analysis
journal, July 2002


The Next-To-Minimal Supersymmetric Extension of the Standard Model Reviewed
journal, July 2010


Supergauge transformations in four dimensions
journal, February 1974


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


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


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


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


Confidence level computation for combining searches with small statistics
journal, September 1999

  • Junk, Thomas
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 434, Issue 2-3
  • DOI: 10.1016/S0168-9002(99)00498-2

Gauge models with spontaneously broken local supersymmetry
journal, December 1982


Difficult scenarios for NMSSM Higgs discovery at the LHC
journal, July 2005


Cancellation of quadratically divergent mass corrections in globally supersymmetric spontaneously broken gauge theories
journal, May 1982


Geant4—a simulation toolkit
journal, July 2003

  • Agostinelli, S.; Allison, J.; Amako, K.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 506, Issue 3
  • DOI: 10.1016/S0168-9002(03)01368-8

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


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


A light NMSSM pseudoscalar Higgs boson at the LHC redux
journal, February 2015

  • Bomark, N. -E.; Moretti, S.; Munir, S.
  • Journal of High Energy Physics, Vol. 2015, Issue 2
  • DOI: 10.1007/JHEP02(2015)044

Performance of CMS muon reconstruction in pp collision events at √s = 7 TeV
journal, October 2012


Description and performance of track and primary-vertex reconstruction with the CMS tracker
journal, October 2014


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


Observation of a new Boson at a mass of 125 gev with the cms Experiment at the lhc
conference, March 2015

  • Mariotti, Chiara
  • Proceedings of the MG13 Meeting on General Relativity, The Thirteenth Marcel Grossmann Meeting
  • DOI: 10.1142/9789814623995_0019

Evidence for the direct decay of the 125 GeV Higgs boson to fermions
text, January 2018


Observation of the diphoton decay of the Higgs boson and measurement of its properties
text, January 2014


Measurement of the properties of a Higgs boson in the four-lepton final state
text, January 2014


Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
text, January 2018


Parton distributions for the LHC
text, January 2007

  • Thorne, R. S.; Martin, A. D.; Stirling, W. J.
  • Deutsches Elektronen-Synchrotron, DESY, Hamburg
  • DOI: 10.3204/proc07-01/27

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