Measurements of electroweak production of a photon in association with two jets in proton-proton collisions at √<i>s</i>=13 TeV
JOURNAL OF HIGH ENERGY PHYSICS, cilt.2026, sa.5, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 2026 Sayı: 5
- Basım Tarihi: 2026
- Doi Numarası: 10.1007/jhep05(2026)020
- Dergi Adı: JOURNAL OF HIGH ENERGY PHYSICS
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, INSPEC, MathSciNet, zbMATH, Directory of Open Access Journals, Academic Search Ultimate (EBSCO), Technology Collection (ProQuest)
- Anahtar Kelimeler: Electroweak Interaction, Hadron-Hadron Scattering, Jets, Photon Production
- İstanbul Üniversitesi Adresli: Evet
Özet
The first observation of electroweak production of a photon in association with two forward jets in proton-proton collisions is presented. The measurement uses data recorded by the CMS experiment at the LHC during 2016-2018 at a center-of-mass energy of 13TeV, corresponding to an integrated luminosity of 138 fb(-1). The analysis is performed in a region enriched in photon production via vector boson fusion, with a requirement on the transverse momentum of the photon to exceed 200 GeV. The cross section is measured to be 202(-32)(+36) fb, at a significance with respect to the null hypothesis that exceeds five standard deviations. This is in agreement with the standard model prediction of 177(-12)(+13) fb. Differential cross sections are measured as a function of various observables. Limits are set on dimension-6 effective field theory operators that contribute to the WW gamma interaction. The observed 95% confidence intervals for the corresponding Warsaw basis Wilson coefficients c(W) and c(HWB) are [- 0.11, 0.16] and [-1.6, 1.5], respectively.