Sensitivity of anomalous quartic gauge couplings via tri-photon production at FCC-hh
Yükleniyor...
Dosyalar
Tarih
2024
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elseiver
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
A direct investigation of the self-couplings of gauge bosons, completely described by the non-Abelian gauge symmetry of the Standard Model, is extremely valuable in understanding the gauge structure of the SM. Any deviation from the SM predictions on gauge boson self-coupling is to give a hint at the existence of a new physics beyond the SM, which is defined with a modification of the self-interactions using an effective field theory approach. In this paper, we present a detailed Monte Carlo study searching for anomalous quartic gauge dimension-8 couplings related to yyyy and yyyZ vertices at the future hadron-hadron collider (FCC-hh) via tri-photon production at a 100 TeV center of mass energy with an integrated luminosity L1,,, =30 ab-1. Events that have been parton showered and include detector effects are analyzed with a Toolkit for Multivariate Data Analysis (TMVA) using a boosted decision tree to help distinguish between signal and background events to achieve the best sensitivities on anomalous quartic gauge couplings. Our obtained results reveal that the limits on anomalous quartic gauge couplings fT 8/Lambda 4 and fT 9/Lambda 4 at 95% C.L. without systematic errors are about three orders of magnitude stronger compared to the best current experimental limits reported by the ATLAS collaboration at the LHC. Considering a realistic systematic uncertainty such as 10% from possible experimental sources, our obtained limits of anomalous quartic couplings get worse by about one order of magnitude compared to those without systematic uncertainty but are still two orders of magnitude better than those recently reported by ATLAS.
Açıklama
Anahtar Kelimeler
Vector Boson Scattering, Pp Collisions, Root-S=8 Tev, Gamma Production, Higgs Couplings, Events
Kaynak
Nuclear Physics B
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
998
Sayı
Künye
Senol, A., Denizli, H., & Helveci, C. (2024). Sensitivity of anomalous quartic gauge couplings via tri-photon production at FCC-hh. Nuclear Physics B, 998, 116387.
