Limits on the production of the standard model Higgs boson in pp collisions at √s=7 TeV with the ATLAS detector

The ATLAS Collaboration

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

A search for the Standard Model Higgs boson at the Large Hadron Collider (LHC) running at a centre-of-mass energy of 7 TeV is reported, based on a total integrated luminosity of up to 40 pb-1 collected by the ATLAS detector in 2010. Several Higgs boson decay channels: H→γγ, H→ZZ(*)→ℓℓℓℓ, H→ZZ→ℓℓνν, H→ZZ→ℓℓqq, H→WW(*)→ℓνℓν and H→WW→ℓνqq (ℓ is e, μ) are combined in a mass range from 110 GeV to 600 GeV. The highest sensitivity is achieved in the mass range between 160 GeV and 170 GeV, where the expected 95% CL exclusion sensitivity is at Higgs boson production cross sections 2. 3 times the Standard Model prediction. Upper limits on the cross section for its production are determined. Models with a fourth generation of heavy leptons and quarks with Standard Model-like couplings to the Higgs boson are also investigated and are excluded at 95% CL for a Higgs boson mass in the range from 140 GeV to 185 GeV.

Original languageEnglish
Pages (from-to)1-30
Number of pages30
JournalEuropean Physical Journal C
Volume71
Issue number9
DOIs
Publication statusPublished - Sep 2011
Externally publishedYes

Fingerprint

Bosons
Higgs bosons
Detectors
collisions
detectors
sensitivity
Colliding beam accelerators
cross sections
exclusion
center of mass
leptons
Luminance
luminosity
quarks
decay
predictions

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Engineering (miscellaneous)

Cite this

Limits on the production of the standard model Higgs boson in pp collisions at √s=7 TeV with the ATLAS detector. / The ATLAS Collaboration.

In: European Physical Journal C, Vol. 71, No. 9, 09.2011, p. 1-30.

Research output: Contribution to journalArticle

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abstract = "A search for the Standard Model Higgs boson at the Large Hadron Collider (LHC) running at a centre-of-mass energy of 7 TeV is reported, based on a total integrated luminosity of up to 40 pb-1 collected by the ATLAS detector in 2010. Several Higgs boson decay channels: H→γγ, H→ZZ(*)→ℓℓℓℓ, H→ZZ→ℓℓνν, H→ZZ→ℓℓqq, H→WW(*)→ℓνℓν and H→WW→ℓνqq (ℓ is e, μ) are combined in a mass range from 110 GeV to 600 GeV. The highest sensitivity is achieved in the mass range between 160 GeV and 170 GeV, where the expected 95{\%} CL exclusion sensitivity is at Higgs boson production cross sections 2. 3 times the Standard Model prediction. Upper limits on the cross section for its production are determined. Models with a fourth generation of heavy leptons and quarks with Standard Model-like couplings to the Higgs boson are also investigated and are excluded at 95{\%} CL for a Higgs boson mass in the range from 140 GeV to 185 GeV.",
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