Top quark anomalous FCNC production via tqg couplings at an FCC-hh
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Tarih
2019
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Amer Physical Soc
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
We investigate the top quark anomalous flavor changing neutral current (FCNC) tqg interactions to probe limits on the couplings zeta(c) and zeta(u) through the qg -> l nu b signal suprocess at an FCC-hh collider with center of mass energy of 100 TeV. To separate the signal from relevant Standard Model background processes, selection criteria based on boosted decision trees (BDT) is used with a set of useful kinematic variables. The sensitivities on the anomalous top FCNC couplings zeta(u) and zeta(c) are found to be 1.239 x 10(-4) and 1.149 x 10(-4) for FCC-hh with L-int = 10 ab(-1) at 95% C.L. including realistic detector effects of the FCC-hh baseline detector, respectively. The branchings BR(t -> ug) and BR(t -> cg) converted from obtained limits for FCNC couplings are at the order of 10(-7) which is at least one order of magnitude better than the projected limits of HL-LHC with L-int = 3 ab(-1).
Açıklama
Anahtar Kelimeler
SM, Standard Model (BSM)
Kaynak
Physical Review D
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
99
Sayı
11
