Testing for observability of Higgs effective couplings in triphoton production at FCC-hh
Yükleniyor...
Dosyalar
Tarih
2019
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Iop Publishing Ltd
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
We investigate the potential of the pp -> gamma gamma gamma process to probe CP-conserving and CP-violating dimension-six operators of Higgs-gauge boson interactions in a model-independent Standard Model effective field theory framework at the center of mass energy of 100 TeV, which is designed for the Future Circular hadron-hadron Collider. Signal events assuming the existence of anomalous Higgs boson couplings at H gamma gamma and HZ gamma vertices and the relevant SM background events are generated in MadGraph, then passed through Pythia 8 for parton showering and Delphes to include detector effects. After detailed examination of kinematic variables, we use the invariant mass distribution of the two leading photons with optimized kinematic cuts to obtain constraints on the Wilson coefficients of dimension-six operators. We report that limits at 95% confidence level on (C) over bar gamma and (C) over tilde gamma couplings with an integrated luminosity of 10 ab(-1) are [-0.005 1; 0.003 8] and -0.004 3; 0.004 3] without systematic error, respectively.
Açıklama
Anahtar Kelimeler
Effective Higgs Couplings, Triphoton Production, Proton-Proton Collision
Kaynak
Journal Of Physics G-Nuclear And Particle Physics
WoS Q Değeri
Q2
Scopus Q Değeri
Q1
Cilt
46
Sayı
10
