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

0470112 - FZÚ 2017 RIV US eng J - Journal Article
Aaboud, M. - Aad, G. - Abbott, B. - Chudoba, Jiří - Havránek, Miroslav - Hejbal, Jiří - Jakoubek, Tomáš - Kepka, Oldřich - Kupčo, Alexander - Kůs, Vlastimil - Lokajíček, Miloš - Lysák, Roman - Marčišovský, Michal - Mikeštíková, Marcela - Němeček, Stanislav - Penc, Ondřej - Šícho, Petr - Svatoš, Michal - Taševský, Marek - Vrba, Václav … Total 2860 authors
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.
Physical Review D. Roč. 94, č. 3 (2016), s. 1-32, č. článku 032011. ISSN 2470-0010. E-ISSN 2470-0029
Institutional support: RVO:68378271
Keywords : ATLAS * CERN LHC Coll * channel cross section * upper limit * experimental results * exclusive production * measured
Subject RIV: BF - Elementary Particles and High Energy Physics
Impact factor: 4.557, year: 2016

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±μ∓X)=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
Permanent Link: http://hdl.handle.net/11104/0267842