Measurement of electroweak-induced production of Wγ with two jets in pp collisions at s√=8 TeV and constraints on anomalous quartic gauge couplings

CMS Collaboration; B. Bilki; W Clarida; Kamuran Dilsiz; S. Durgut; R. P. Gandrajula; M. Haytmyradov; V Khristenko; J-P Merlo; H Mermerkaya; Alexi Mestvirishvili; A. Moeller; Jane M Nachtman; Hasan Ogul; Yasar Onel; F. Ozok; Aldo Penzo; C. Snyder; E. Tiras; Kai Yi; James W Wetzel

doi:10.1007/JHEP06(2017)106

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Measurement of electroweak-induced production of Wγ with two jets in pp collisions at s√=8 TeV and constraints on anomalous quartic gauge couplings

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Measurement of electroweak-induced production of Wγ with two jets in pp collisions at s√=8 TeV and constraints on anomalous quartic gauge couplings

CMS Collaboration, B. Bilki, W Clarida, Kamuran Dilsiz, S. Durgut, R. P. Gandrajula, M. Haytmyradov, V Khristenko, J-P Merlo, H Mermerkaya, …

Journal of high energy physics : JHEP, Vol.2017, 106

01/01/2017

DOI: 10.1007/JHEP06(2017)106

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Abstract

A measurement of electroweak-induced production of Wγ and two jets is performed, where the W boson decays leptonically. The data used in the analysis correspond to an integrated luminosity of 19.7 fb−1 collected by the CMS experiment in s√=8 TeV proton-proton collisions produced at the LHC. Candidate events are selected with exactly one muon or electron, missing transverse momentum, one photon, and two jets with large rapidity separation. An excess over the hypothesis of the standard model without electroweak production of Wγ with two jets is observed with a significance of 2.7 standard deviations. The cross section measured in the fiducial region is 10.8 ± 4.1(stat) ± 3.4(syst) ± 0.3(lumi) fb, which is consistent with the standard model electroweak prediction. The total cross section for Wγ in association with two jets in the same fiducial region is measured to be 23.2 ± 4.3(stat) ± 1.7(syst) ± 0.6(lumi) fb, which is consistent with the standard model prediction from the combination of electroweak and quantum chromodynamics-induced processes. No deviations are observed from the standard model predictions and experimental limits on anomalous quartic gauge couplings f M,0−7 /Λ4, f T,0−2 /Λ4, and f T,5−7 /Λ4 are set at 95% confidence level. ISSN:1126-6708 ISSN:1029-8479

High Energy Physics

Electroweak interaction

Experiment

Hadron

Hadron scattering (experiments)

Phenomenology

proton

proton scattering

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Title: Subtitle: Measurement of electroweak-induced production of Wγ with two jets in pp collisions at s√=8 TeV and constraints on anomalous quartic gauge couplings
Creators: CMS Collaboration (Institution)
B. Bilki - University of Iowa
W Clarida - University of Iowa
Kamuran Dilsiz - University of Iowa, Physics and Astronomy
S. Durgut - University of Iowa
R. P. Gandrajula - University of Iowa
M. Haytmyradov - University of Iowa
V Khristenko - University of Iowa
J-P Merlo - University of Iowa
H Mermerkaya - University of Iowa
Alexi Mestvirishvili - University of Iowa, Physics and Astronomy
A. Moeller - University of Iowa
Jane M Nachtman - University of Iowa, Physics and Astronomy
Hasan Ogul - University of Iowa, Physics and Astronomy
Yasar Onel - Physics and Astronomy
F. Ozok - University of Iowa
Aldo Penzo - University of Iowa, Physics and Astronomy
C. Snyder - University of Iowa
E. Tiras - University of Iowa
Kai Yi - University of Iowa, Physics and Astronomy
James W Wetzel - University of Iowa, Physics and Astronomy
Resource Type: Journal article
Publication Details: Journal of high energy physics : JHEP, Vol.2017, 106
DOI: 10.1007/JHEP06(2017)106
ISSN: 1126-6708
eISSN: 1029-8479
Publisher: Springer
Language: English
Date published: 01/01/2017
Academic Unit: Physics and Astronomy
Record Identifier: 9984429060002771

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