$WW\gamma/Z$ production in the Randall-Sundrum model at LHC and CLIC

TL;DR

This paper investigates how the Randall-Sundrum model's Kaluza-Klein gravitons influence $WW\gamma/Z$ production at the LHC and CLIC, highlighting differences in signatures and the potential of CLIC to better explore these effects.

Contribution

It provides a comparative analysis of RS KK-graviton effects on $WW\gamma/Z$ production at LHC and CLIC, emphasizing the unique resonance signatures and experimental advantages of CLIC.

Findings

RS discrepancies differ between LHC and CLIC in transverse momentum and rapidity distributions.

Resonance signatures of RS KK-gravitons are distinct from large extra dimensions models.

CLIC's high precision enhances detection prospects of RS effects.

Abstract

We study the $W^+W^-\gamma(Z)$ productions at both the CERN Large Hadron Collider (LHC) and the Compact Linear Collider (CLIC) in the framework of the Randall-Sundrum (RS) model. The impacts of the virtual RS Kaluza-Klein (KK) graviton on these processes are studied and compared with the standard model (SM) background. We present the integrated and differential cross sections in both the RS model and the SM. The results show that the relative RS discrepancies at the CLIC differ from those at the LHC, particularly in the transverse momentum and rapidity distributions. We also find that the RS signature performance, as a result of the resonance character of the RS KK-graviton spectrum, is distinctively unlike that in the large extra dimensions model. We conclude that the CLIC with unprecedented precision and high center-of-mass energy has a potential advantage over the LHC in exploring the effects of the RS KK graviton on the $W^+W^-\gamma(Z)$ production processes.