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Search for invisible decays of the Higgs boson produced in association with a hadronically decaying vector boson in pp collisions at √s = 8 with the ATLAS detector

Journal Article · · European Physical Journal. C, Particles and Fields
 [1];  [2]
  1. Aix-Marseille Univ. and CNRS/IN2P3, Marseille (France)
  2. SLAC National Accelerator Lab., Menlo Park, CA (United States)
+ Show Author Affiliations
A search for Higgs boson decays to invisible particles is performed using 20.3 fb⁻¹ of pp collision data at a centre-of-mass energy of 8 TeV recorded by the ATLAS detector at the Large Hadron Collider. The process considered is Higgs boson production in association with a vector boson (V = W or Z) that decays hadronically, resulting in events with two or more jets and large missing transverse momentum. No excess of candidates is observed in the data over the background expectation. The results are used to constrain V H production followed by H decaying to invisible particles for the Higgs boson mass range 115 < mH < 300 GeV. The 95 % confidence-level observed upper limit on σVH × BR(H → inv.) varies from 1.6 pb at 115 GeV to 0.13 pb at 300 GeV. Assuming Standard Model production and including the gg → H contribution as signal, the results also lead to an observed upper limit of 78% at 95% confidence level on the branching ratio of Higgs bosons decays to invisible particles at a mass of 125 GeV.
Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE; USDOE Office of Science (SC)
Contributing Organization:
ATLAS collaboration; The ATLAS Collaboration
Grant/Contract Number:
AC02-05CH11231; AC02-06CH11357; AC03-76SF00515
OSTI ID:
1208650
Alternate ID(s):
OSTI ID: 1409421
OSTI ID: 1224967
OSTI ID: 1225451
OSTI ID: 22399986
Journal Information:
European Physical Journal. C, Particles and Fields, Journal Name: European Physical Journal. C, Particles and Fields Journal Issue: 7 Vol. 75; ISSN 1434-6044
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (18)

Search for invisible decays of a Higgs boson using vector-boson fusion in pp collisions at s = 8 $$ \sqrt{s}=8 $$ TeV with the ATLAS detector journal January 2016
Searches for invisible decays of the Higgs boson in pp collisions at s $$ \sqrt{s} $$ = 7, 8, and 13 TeV journal February 2017
Search for dark matter produced with an energetic jet or a hadronically decaying W or Z boson at s = 13 $$ \sqrt{s}=13 $$ TeV journal July 2017
The Higgs legacy of the LHC Run I journal August 2015
Measurements of the Higgs boson production and decay rates and constraints on its couplings from a combined ATLAS and CMS analysis of the LHC pp collision data at s = 7 $$ \sqrt{s}=7 $$ and 8 TeV journal August 2016
A stable Higgs portal with vector dark matter journal September 2015
Search for Dark Matter in Events with Missing Transverse Momentum and a Higgs Boson Decaying to Two Photons in p p Collisions at s = 8     TeV with the ATLAS Detector journal September 2015
Improved Limits for Higgs-Portal Dark Matter from LHC Searches journal October 2017
Combination of Searches for Invisible Higgs Boson Decays with the ATLAS Experiment journal June 2019
Measurements of the Higgs boson production and decay rates and coupling strengths using pp collision data at $$\sqrt{s}=7$$ s = 7 and 8 TeV in the ATLAS experiment journal January 2016
Review of LHC dark matter searches journal May 2017
Combination of Searches for Invisible Higgs Boson Decays with the ATLAS Experiment. text January 2019
Tagging Jets in Invisible Higgs Searches journal January 2018
Review of LHC dark matter searches text January 2017
Combination of searches for invisible Higgs boson decays with the ATLAS experiment text January 2019
Searches for invisible decays of the Higgs boson in pp collisions at sqrt(s) = 7, 8, and 13 TeV text January 2016
The Higgs legacy of the LHC Run I text January 2015
Searches for invisible decays of the Higgs boson in pp collisions at √s = 7, 8, and 13 TeV text January 2017

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Search for invisible decays of the Higgs boson produced in association with a hadronically decaying vector boson in pp collisions at $$\sqrt{s} = 8$$ s = 8 TeV with the ATLAS detector
Journal Article · Wed Jul 01 00:00:00 EDT 2015 · European Physical Journal. C, Particles and Fields · OSTI ID:1225451

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