Charge asymmetry phenomenon for the leptonically decaying W γ pair at NNLO QCD

Basit Öğe Kaydı
dc.contributor.authorSaygin, Kadir
dc.date.accessioned2026-07-01T11:39:15Z
dc.date.available2026-07-01T11:39:15Z
dc.date.issued2025
dc.departmentDüzce Üniversitesi
dc.description.abstractThe paper presents for the first time a phenomenological assessment which focuses on the charge asymmetry phenomenon for the W gamma production process with subsequent leptonic decay modes W+gamma-+ l+nu l gamma and W-gamma-+ l-nul gamma in proton-proton ( pp) collisions. Charge asymmetry for the leptonic W gamma process is predicted by the inclusion of genuine next-to-next-to-leading order (NNLO) corrections in the QCD perturbation theory. NNLO predictions of asymmetry distributions are assessed for the key observables, including the decay lepton and photon pseudorapidities eta l and eta gamma , respectively, and the lepton-photon pseudorapidity correlation triangle eta(l, gamma). The predictions are presented by focusing on realistic fiducial phase-space definitions in comparison at various pp-collision energies of 13 TeV, 14 TeV, and 100 TeV. The sensitivity of the predicted asymmetry distributions to an important observation known as radiation amplitude zero in the W gamma process is reported. The asymmetry distribution for the triangle eta(l, gamma) is shown to be important for probing the radiation-zero effect in the presence of high-transverse momentum photons. The impact of imposing jet veto for the final state of the W gamma process on the asymmetry distributions is reported for future pp-collision energies. Prospects of phase-space definitions including a jet veto and harder-photon recoil are discussed to compensate for the negative impact of increasing collision energy on the asymmetry distributions. The charge asymmetry distributions are proposed as sensitive observables that offer a unique opportunity for stringent tests of the SM and represent a novel method for probing departure from the SM in indirect searches for new-physics effects, independently from the existing direct searches for anomalous WW gamma coupling regarding the W gamma final state.
dc.identifier.doi10.55730/1300-0101.2791
dc.identifier.issn1300-0101
dc.identifier.issn1303-6122
dc.identifier.issue5
dc.identifier.scopus2-s2.0-105028156427
dc.identifier.scopusqualityQ2
dc.identifier.trdizinid1393297
dc.identifier.urihttps://doi.org/10.55730/1300-0101.2791
dc.identifier.urihttps://search.trdizin.gov.tr/tr/yayin/detay/1393297
dc.identifier.urihttps://hdl.handle.net/20.500.12684/23178
dc.identifier.volume49
dc.identifier.wosWOS:001599189400005
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakTR-Dizin
dc.institutionauthorSaygin, Kadir
dc.language.isoen
dc.publisherTubitak Scientific & Technological Research Council Turkey
dc.relation.ispartofTurkish Journal of Physics
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WOS_20260623
dc.subjectHigh-Energy Physics Phenomenology
dc.subjectGauge Boson Pair Production
dc.subjectCharge Asymmetry In W Gamma Decay Process
dc.subjectRadiation Amplitude Zero Of W Gamma
dc.subjectNnlo Qcd Prediction For W Gamma
dc.titleCharge asymmetry phenomenon for the leptonically decaying W γ pair at NNLO QCD
dc.typeArticle

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu
TR-Dizin İndeksli Yayınlar Koleksiyonu