Sensitivity on anomalous neutral triple gauge couplings via ZZ production at FCC-hh

A Yilmaz,A Senol,I Turk Cakir,H Denizli,O Cakir

doi:10.1140/epjc/s10052-020-7731-2

Abstract

We study the sensitivity of anomalous neutral triple gauge couplings (aNTGC) via pp rightarrow ZZ production in the 4ell channel at 100 TeV center of mass energy of future circular hadron collider, FCC-hh. The analysis including the realistic detector effects is performed in the mode where both Z bosons decay into same-flavor, oppositely charged lepton pairs. The sensitivities to the charge–parity (CP)-conserving couplings C_{{tilde{B}}W} / Lambda ^{4} and CP-violating couplings C_{WW} / Lambda ^{4}, C_{BW} / Lambda ^{4} and C_{BB} / Lambda ^{4} obtained at 95% Confidence Level using the invariant mass distribution of the 4ell system reconstructing the leading and sub-leading Z boson candidates are [-,0.09, ,, +,0.09], [-,0.21, ,, +,0.21], [-,0.26, ,, +,0.26], and [-,0.10, ,, +,0.10] in units of hbox {TeV}^{-4}, respectively.

Highlights

The studies on the diboson production at colliders play an important role in testing the non-Abelian SU (2) L × U (1)Y gauge group of the electroweak sector in the Standard Model (SM) and searching for new phenomena at the TeV-energy scale [1]
The pp → Z Z sensitivity is estimated by using events where a further cut is applied for both invariant mass of leading Z and sub-leading Z bosons must be within the range 80
I where NiN P is the total number of events in the existence of effective couplings, NiB is the total number of events of the corresponding SM backgrounds in the ith bin of the invariant mass of the quadruplet-leptons’ distribution, and

Summary

Introduction

The studies on the diboson production at colliders play an important role in testing the non-Abelian SU (2) L × U (1)Y gauge group of the electroweak sector in the Standard Model (SM) and searching for new phenomena at the TeV-energy scale [1]. This high center of mass energy leads to enhancement of the cross-section, which would widen the range of triple gauge coupling studies.

Results

Conclusion