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Study of vector boson scattering and search for new physics in events with two same-sign leptons and two jets (CROSBI ID 228060)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Khachatryan, Vardan ; ... ; Morović, Srećko ; Ferenček, Dinko ; Đurić, Senka ; Godinović, Nikola ; Lelas, Damir ; Polić, Dunja ; Puljak, Ivica ; Antunović, Željko et al. Study of vector boson scattering and search for new physics in events with two same-sign leptons and two jets // Physical review letters, 114 (2015), 5; 051801-1-051801-16. doi: 10.1103/PhysRevLett.114.051801

Podaci o odgovornosti

Khachatryan, Vardan ; ... ; Morović, Srećko ; Ferenček, Dinko ; Đurić, Senka ; Godinović, Nikola ; Lelas, Damir ; Polić, Dunja ; Puljak, Ivica ; Antunović, Željko ; Kovač, Marko ; Brigljević, Vuko ; Kadija, Krešo ; Luetić, Jelena ; Mekterović, Darko ; Sudić, Lucija ; ... ; Woods, Nate

engleski

Study of vector boson scattering and search for new physics in events with two same-sign leptons and two jets

A study of vector boson scattering in pp collisions at a center-of-mass energy of 8 TeV is presented. The data sample corresponds to an integrated luminosity of 19.4 inverse femtobarns collected with the CMS detector. Candidate events are selected with exactly two leptons of the same charge, two jets with large rapidity separation and dijet mass, and moderate missing transverse energy. The signal region is expected to be dominated by electroweak same-sign W-boson pair production. The observation agrees with the standard model prediction. The observed significance is 2.0 standard deviations, where a significance of 3.1 standard deviations is expected based on the standard model. Cross section measurements for W+/- W+/- and WZ processes in the fiducial region are reported. Bounds on the structure of quartic vector-boson interactions are given in the framework of dimension-eight effective field theory operators, as well as limits on the production of doubly- charged Higgs bosons.

High energy physics ; Experimental particle physics ; LHC ; CMS ; Standard Model

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Podaci o izdanju

114 (5)

2015.

051801-1-051801-16

objavljeno

0031-9007

10.1103/PhysRevLett.114.051801

Povezanost rada

Fizika

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