skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: NMSSM Higgs boson search strategies at the LHC and the mono-Higgs signature in particular

Authors:
; ; ;
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1372564
Grant/Contract Number:
SC007859
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 95; Journal Issue: 11; Related Information: CHORUS Timestamp: 2017-06-29 22:10:37; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English

Citation Formats

Baum, Sebastian, Freese, Katherine, Shah, Nausheen R., and Shakya, Bibhushan. NMSSM Higgs boson search strategies at the LHC and the mono-Higgs signature in particular. United States: N. p., 2017. Web. doi:10.1103/PhysRevD.95.115036.
Baum, Sebastian, Freese, Katherine, Shah, Nausheen R., & Shakya, Bibhushan. NMSSM Higgs boson search strategies at the LHC and the mono-Higgs signature in particular. United States. doi:10.1103/PhysRevD.95.115036.
Baum, Sebastian, Freese, Katherine, Shah, Nausheen R., and Shakya, Bibhushan. Thu . "NMSSM Higgs boson search strategies at the LHC and the mono-Higgs signature in particular". United States. doi:10.1103/PhysRevD.95.115036.
@article{osti_1372564,
title = {NMSSM Higgs boson search strategies at the LHC and the mono-Higgs signature in particular},
author = {Baum, Sebastian and Freese, Katherine and Shah, Nausheen R. and Shakya, Bibhushan},
abstractNote = {},
doi = {10.1103/PhysRevD.95.115036},
journal = {Physical Review D},
number = 11,
volume = 95,
place = {United States},
year = {Thu Jun 29 00:00:00 EDT 2017},
month = {Thu Jun 29 00:00:00 EDT 2017}
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on June 29, 2018
Publisher's Accepted Manuscript

Citation Metrics:
Cited by: 1work
Citation information provided by
Web of Science

Save / Share:
  • We explore the potential of the Large Hadron Collider to observe the h{sub 1{yields}}a{sub 1}a{sub 1{yields}}4{mu} signal from the lightest scalar Higgs boson (h{sub 1}) decaying into the two lightest pseudoscalar Higgs bosons (a{sub 1}), followed by their decays into four muons in the next-to-minimal supersymmetric standard model (NMSSM). The signature under study applies to the region of the NMSSM parameter space in which m{sub a{sub 1}}<2m{sub {tau},} which has not been studied previously. In such a scenario, the suggested strategy of searching for a four-muon signal with the appropriate background suppression would provide a powerful method to discover themore » lightest CP-even and CP-odd NMSSM Higgs bosons h{sub 1} and a{sub 1}.« less
  • 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 ormore » 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 ma 1 (mh 1 ) = 8 GeV to 10.3 pb at ma 1 (mh 1 ) = 5 GeV.« less
  • We examine the exclusive signature {ital e}{sup {plus_minus}}({mu}{sup {plus_minus}})+{ital b{bar b}} in the associated production of the intermediate mass Higgs boson with a {ital W} boson. We show that it is feasible to use this signature to identify the Higgs boson in the lower intermediate mass region (90 to 130 GeV) at the CERN LHC with reasonable acceptance cuts by assuming effective bottom-jet identification. We further demonstrate that the background can be reduced with judicious cuts down to the level of the signal.
  • A systematic analysis of the like-sign dilepton signature for gluino production at the CERN LHC is performed in the {ital R}-conserving minimal supersymmetric standard model, taking into account the top quark and Higgs boson effects in the cascade decay. We consider two representative values of the gluino mass, 300 and 800 GeV, along with those of the other SUSY parameters. While the top quark contribution is kinematically suppressed for the former case, it is very important for the latter. Ways of separating the signal from the background are discussed. One expects a viable like-sign dilepton signal up to a gluinomore » mass of {similar_to}800 (1200) GeV at the low (high) luminosity option of the LHC over practically the full parameter space of the MSSM.« less
  • The opposite states of the {tau} polarization resulting from the charged Higgs boson and the {ital W} boson decays can be exploited to enhance the {ital H}{sup {plus_minus}} signal in the inclusive one-prong hadronic decay channel of {tau}. We suggest practical methods of sharpening up the {ital H}{sup {plus_minus}} signature in the top quark decay at the CERN LHC using this idea. As a result one can carry on the charged Higgs boson search to within {approximately}20 GeV of the parent top quark mass over the full parameter space of the MSSM. {copyright} {ital 1996 The American Physical Society.}