Jul 4 – 11, 2018
COEX, SEOUL
Asia/Seoul timezone

Loop Induced Single Top Partner Production and Decay at the LHC

Jul 5, 2018, 11:30 AM
15m
203 (COEX, Seoul)

203

COEX, Seoul

Parallel Beyond the Standard Model Beyond the Standard Model

Speakers

Ian Lewis (The University of Kansas) K.C. Kong (University of Kansas)

Description

Most searches for top partners, T, are concerned with top partner pair production. However, as these bounds become increasingly stringent, the LHC energy will saturate and single top partner production will become more important. We study the LHC sensitivity to single top partner production in a model where the Standard Model (SM) is extended by an SU(2) singlet top partner and a SM gauge singlet scalar, S. In this model, it is possible that the scalar singlet can mediate loop induced gg → T t production, where t is the SM top quark. In fact, we find that the production rate of this channel can be comparable to top partner pair production at top partner masses of MT > 1.5 TeV. In addition, while most current searches focus on the decays T → tZ, T → th, T → Wb decays, in this model the decay pattern of the top partner can be significantly altered with new decay modes T → gt, T → γt, and T → St. We give an overview of the various production and decay channels of the top partner in this model and classify which modes are dominant in which regions of parameter space. We then project the the sensitivity of the high luminosity LHC to gg → T t.

Primary authors

Ian Lewis (The University of Kansas) Jeong Han Kim (University of Kansas) K.C. Kong (University of Kansas) Haider Alhazmi

Presentation materials