Journal article
Measurement of the cross section for electroweak production of Zγ in association with two jets and constraints on anomalous quartic gauge couplings in proton–proton collisions at √s = 8 TeV
Physics letters. B Nuclear, elementary particle and high-energy physics, Vol.770, pp.380-402
07/10/2017
DOI: 10.1016/j.physletb.2017.04.071
Abstract
A measurement is presented of the cross section for the electroweak production of a Z boson and
a photon in association with two jets in proton–proton collisions at √s = 8 TeV. The Z bosons are
identified through their decays to electron or muon pairs. The measurement is based on data collected
with the CMS detector corresponding to an integrated luminosity of 19.7 fb−1. The electroweak
contribution has a significance of 3.0 standard deviations, and the measured fiducial cross section is
1.86+0.90
−0.75 (stat)+0.34
−0.26 (syst) ± 0.05 (lumi) fb, while the summed electroweak and quantum chromodynamic
total cross section in the same region is observed to be 5.94+1.53
−1.35 (stat)+0.43
−0.37 (syst) ± 0.13 (lumi) fb. Both
measurements are consistent with the leading-order standard model predictions. Limits on anomalous
quartic gauge couplings are set based on the Zγ mass distribution.
Details
- Title: Subtitle
- Measurement of the cross section for electroweak production of Zγ in association with two jets and constraints on anomalous quartic gauge couplings in proton–proton collisions at √s = 8 TeV
- Creators
- CMS Collaboration (Institution)B. Bilki - University of IowaW Clarida - University of IowaKamuran Dilsiz - University of Iowa, Physics and AstronomyS. Durgut - University of IowaR. P. Gandrajula - University of IowaM. Haytmyradov - University of IowaV Khristenko - University of IowaJ-P Merlo - University of IowaH Mermerkaya - University of IowaAlexi Mestvirishvili - University of Iowa, Physics and AstronomyA. Moeller - University of IowaJane M Nachtman - University of Iowa, Physics and AstronomyHasan Ogul - University of Iowa, Physics and AstronomyYasar Onel - University of Iowa, Physics and AstronomyF. Ozok - University of IowaAldo Penzo - University of Iowa, Physics and AstronomyC. Snyder - University of IowaE. Tiras - University of IowaKai Yi - University of Iowa, Physics and AstronomyJames W Wetzel - University of Iowa, Physics and Astronomy
- Resource Type
- Journal article
- Publication Details
- Physics letters. B Nuclear, elementary particle and high-energy physics, Vol.770, pp.380-402
- DOI
- 10.1016/j.physletb.2017.04.071
- ISSN
- 0370-2693
- eISSN
- 1873-2445
- Publisher
- Elsevier
- Grant note
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- Date published
- 07/10/2017
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984439158802771
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