2014/02/28 by Yoshiko Ohno, Ohno, Yoshiko
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph
paper · pdf · doi:10.48550/arxiv.1402.7159
5 pages, 6 figures, contribution to KMI International Symposium 2013 on "Quest for the Origin of Particles and the Universe", 11-13 Dec. 2013, KMI, Nagoya University
arxiv created 2014/02/28 · arxiv updated 2014/03/03
A warped extra dimension model proposed by Randall and Sundrum(RS) is one of the attractive candidates to solve the gauge hierarchy problem in the Standard Model. In a simplest version of the RS model, there are only two extra particles beyond the Standard Model - a spin-2 graviton (and its Kaluza-Klein excitations) and a radion which is a spin-0 and electrically neutral particle. In this paper, we discuss a possibility of discovering the radion at a photon collider, which has been considered as an option of e+ e- liner collider (ILC), focusing on characteristic features of radion interactions with photon or gluon, in addition to constraints on mass and coupling of the radion from the SM Higgs boson search at the LHC.