Measurement of exclusive γγ →w+W- production and search for exclusive Higgs boson production in pp collisions at s =8 TeV using the ATLAS detector

(ATLAS Collaboration)

Research output: Contribution to journalArticlepeer-review

Abstract

Searches for exclusively produced W boson pairs in the process pp(γγ)→pW+W-p and an exclusively produced Higgs boson in the process pp(gg)→pHp have been performed using e±μ final states. These measurements use 20.2 fb-1 of pp collisions collected by the ATLAS experiment at a center-of-mass energy s=8 TeV at the LHC. Exclusive production of W+W- consistent with the Standard Model prediction is found with 3.0σ significance. The exclusive W+W- production cross section is determined to be σ(γγ→W+W-→e±μX)=6.9±2.2(stat)±1.4(sys) fb, in agreement with the Standard Model prediction. Limits on anomalous quartic gauge couplings are set at 95% confidence level as -1.7×10-6<a0W/Λ2<1.7×10-6 GeV-2 and -6.4×10-6<aCW/Λ2<6.3×10-6 GeV-2. A 95% confidence-level upper limit on the total production cross section for an exclusive Higgs boson is set to 1.2 pb.

Original languageEnglish
Article number032011
JournalPhysical Review D
Volume94
Issue number3
DOIs
StatePublished - 31 Aug 2016

Funding

FundersFunder number
Not addedST/N000420/1
National Science Foundation1119200, 1410972
Seventh Framework Programme246806
Science and Technology Facilities CouncilST/J005533/1, ST/M000753/1, ST/N000307/1, ST/N000331/1, ST/L003449/1, GRIDPP, ST/L006162/1, ST/J004804/1, PP/E000444/1, ST/N000463/1, ST/K001329/1, ST/N000277/1, ST/L000997/1
Schweizerischer Nationalfonds zur F&#x00F6;rderung der Wissenschaftlichen Forschung163402, 156083

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