Resonances from Two Universal Extra Dimensions
摘要
Standard model gauge bosons propagating in two universal extra dimensions give rise to heavy spin-1 and spin-0 particles. The lightest of these, carrying Kaluza-Klein numbers (1,0), may be produced only in pairs at colliders, whereas the (1,1) modes, which are heavier by a factor of \sqrt{2}, may be singly produced. We show that the cascade decays of (1,1) particles generate a series of closely-spaced narrow resonances in the t\bar{t} invariant mass distribution. At the Tevatron, s-channel production of (1,1) gluons and electroweak bosons will be sensitive to t\bar{t} resonances up to masses in the 0.5 - 0.7 TeV range. Searches at the LHC for resonances originating from several higher-level modes will further test the existence of two universal extra dimensions.
引用
@article{arxiv.hep-ph/0601186,
title = {Resonances from Two Universal Extra Dimensions},
author = {Gustavo Burdman and Bogdan A. Dobrescu and Eduardo Ponton},
journal= {arXiv preprint arXiv:hep-ph/0601186},
year = {2008}
}
备注
21 pages. The paragraph that includes Eq. (2.31) has been corrected, and a few other statements have been improved