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Measurement of the Wγ Production Cross Section in Proton-Proton Collisions at s =13 TeV and Constraints on Effective Field Theory Coefficients

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A fiducial cross section for Wγ production in proton-proton collisions is measured at a center-of-mass energy of 13 TeV in 137 fb-1 of data collected using the CMS detector at the LHC. The W→eν and μν decay modes are used in a maximum-likelihood fit to the lepton-photon invariant mass distribution to extract the combined cross section. The measured cross section is compared with theoretical expectations at next-to-leading order in quantum chromodynamics. In addition, 95% confidence level intervals are reported for anomalous triple-gauge couplings within the framework of effective field theory. © 2021 CERN. CERN, for the CMS Collaboration.

Anahtar Kelimeler

Quantum theoryTellurium compoundsA-centerCenter-of-mass energiesCentre-of-mass energiesCMS detectorsDecay modeEffective field theoryMaximum-likelihoodMeasurements ofProduction cross sectionProton proton collisionsMaximum likelihood
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AlanDeğerDil
dc.contributor.authorSirunyan, A.M.
dc.contributor.authorTumasyan, A.
dc.contributor.authorAdam, W.
dc.contributor.authorAndrejkovic, J.W.
dc.contributor.authorBergauer, T.
dc.contributor.authorChatterjee, S.
dc.contributor.authorDragicevic, M.
dc.contributor.authorEscalante Del Valle, A.
dc.contributor.authorFrühwirth, R.
dc.contributor.authorJeitler, M.
dc.contributor.authorKrammer, N.
dc.contributor.authorLechner, L.
dc.contributor.authorLiko, D.
dc.contributor.authorMikulec, I.
dc.contributor.authorPitters, F.M.
dc.contributor.authorSchieck, J.
dc.contributor.authorSchöfbeck, R.
dc.contributor.authorSpanring, M.
dc.contributor.authorTempl, S.
dc.contributor.authorWaltenberger, W.
dc.contributor.authorWulz, C.-E.
dc.contributor.authorChekhovsky, V.
dc.contributor.authorLitomin, A.
dc.contributor.authorMakarenko, V.
dc.contributor.authorDarwish, M.R.
dc.contributor.authorDe Wolf, E.A.
dc.contributor.authorJanssen, X.
dc.contributor.authorKello, T.
dc.contributor.authorLelek, A.
dc.contributor.authorRejeb Sfar, H.
dc.contributor.authorVan Mechelen, P.
dc.contributor.authorVan Putte, S.
dc.contributor.authorVan Remortel, N.
dc.contributor.authorBlekman, F.
dc.contributor.authorBols, E.S.
dc.contributor.authorD'Hondt, J.
dc.contributor.authorDe Clercq, J.
dc.contributor.authorDelcourt, M.
dc.contributor.authorLowette, S.
dc.contributor.authorMoortgat, S.
dc.contributor.authorMorton, A.
dc.contributor.authorMüller, D.
dc.contributor.authorSahasransu, A.R.
dc.contributor.authorTavernier, S.
dc.contributor.authorVan Doninck, W.
dc.contributor.authorVan Mulders, P.
dc.contributor.authorBeghin, D.
dc.contributor.authorBilin, B.
dc.contributor.authorClerbaux, B.
dc.contributor.authorDe Lentdecker, G.
dc.date.accessioned2026-10-18T20:28:02.147438311Z
dc.date.available2026-10-18T20:28:02.147438311Z
dc.date.issued2021
dc.description.abstractA fiducial cross section for Wγ production in proton-proton collisions is measured at a center-of-mass energy of 13 TeV in 137 fb-1 of data collected using the CMS detector at the LHC. The W→eν and μν decay modes are used in a maximum-likelihood fit to the lepton-photon invariant mass distribution to extract the combined cross section. The measured cross section is compared with theoretical expectations at next-to-leading order in quantum chromodynamics. In addition, 95% confidence level intervals are reported for anomalous triple-gauge couplings within the framework of effective field theory. © 2021 CERN. CERN, for the CMS Collaboration.
dc.description.sponsorshipWe congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC and thank the technical and administrative staffs at CERN and at other CMS institutes for their contributions to the success of the CMS effort. In addition, we gratefully acknowledge the computing centers and personnel of the Worldwide LHC Computing Grid and other centers for so effectively delivering the computing infrastructure essential to our analyses. Finally, we acknowledge the enduring support for the construction and operation of the LHC, the CMS detector, and the supporting computing infrastructure provided by the following funding agencies: BMBWF and FWF (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, FAPERGS, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES and CSF (Croatia); RIF (Cyprus); SENESCYT (Ecuador); MoER, ERC PUT, and ERDF (Estonia); Academy of Finland, MEC, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); NKFIA (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); MSIP and NRF (Republic of Korea); MES (Latvia); LAS (Lithuania); MOE and UM (Malaysia); BUAP, CINVESTAV, CONACYT, LNS, SEP, and UASLP-FAI (Mexico); MOS (Montenegro); MBIE (New Zealand); PAEC (Pakistan); MSHE and NSC (Poland); FCT (Portugal); JINR (Dubna); MON, RosAtom, RAS, RFBR, and NRC KI (Russia); MESTD (Serbia); SEIDI, CPAN, PCTI, and FEDER (Spain); MOSTR (Sri Lanka); Swiss Funding Agencies (Switzerland); MST (Taipei); ThEPCenter, IPST, STAR, and NSTDA (Thailand); TUBITAK and TAEK (Turkey); NASU (Ukraine); STFC (United Kingdom); DOE and NSF (USA).
dc.identifier.doi10.1103/physrevlett.126.252002
dc.identifier.issn0031-9007
dc.identifier.issue25
dc.identifier.pmid34241533
dc.identifier.scopus2-s2.0-85108908811
dc.identifier.startpage252002
dc.identifier.urihttps://rdlopen.rawdatalibrary.net/r/ebyu/13195
dc.identifier.volume126
dc.language.isoen
dc.publisherAmerican Physical Society
dc.relation.ispartofPhysical Review Letters
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectQuantum theory
dc.subjectTellurium compounds
dc.subjectA-center
dc.subjectCenter-of-mass energies
dc.subjectCentre-of-mass energies
dc.subjectCMS detectors
dc.subjectDecay mode
dc.subjectEffective field theory
dc.subjectMaximum-likelihood
dc.subjectMeasurements of
dc.subjectProduction cross section
dc.subjectProton proton collisions
dc.subjectMaximum likelihood
dc.titleMeasurement of the Wγ Production Cross Section in Proton-Proton Collisions at s =13 TeV and Constraints on Effective Field Theory Coefficients
dc.typeArticle
dspace.entity.typePublication
rdl.citation.scopus25
rdl.oa.statusgold
rdl.source.indexSCOPUS