Hunting for the Top Partner in the Littlest Higgs Model with T-parity at the LHC

Simple item page
dc.creatorMatsumoto, Shigeki
dc.creatorNojiri, Mihoko M.
dc.creatorNomura, Daisuke
dc.date2006-12-20
dc.date.accessioned2026-07-07T11:58:58Z
dc.date.available2026-07-07T11:58:58Z
dc.descriptionWe study the Littlest Higgs model with T-parity at the LHC through pair productions of the T-odd top quark partner (T_-) which decays into the top quark and the lightest T-odd particle. We identify the region of parameters favored by the electroweak and cosmological considerations. The signal and background events are simulated with fast detector simulation to study the discovery potential at the LHC. We find that the hemisphere analysis recently proposed by the CMS collaboration is very useful to separate the signal from the t\bar{t} background. We discuss the observability of the top tagged signal in the effective mass (M_{eff}) versus the transverse missing energy (E_{Tmiss}) plane. We show that, for all our sample parameter sets with M_{T_-} \leq 900 GeV, the excess of the signal over the background can be visible as a bump structure in the E_{Tmiss} distribution for 50 fb^{-1} at relatively high M_{eff} intervals.
dc.description27 pages, 11 figures
dc.identifierhttps://arxiv.org/abs/hep-ph/0612249
dc.identifierhttp://arxiv.org/abs/hep-ph/0612249
dc.identifierPhys.Rev.D75:055006,2007
dc.identifierdoi:10.1103/PhysRevD.75.055006
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/206404
dc.subjectHigh Energy Physics - Phenomenology
dc.titleHunting for the Top Partner in the Littlest Higgs Model with T-parity at the LHC
dc.typetext

Files

Collections

arXiv