Top Quark Pairs at High Invariant Mass - A Model-Independent Discriminator of New Physics at the LHC

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dc.creatorBarger, Vernon
dc.creatorHan, Tao
dc.creatorWalker, Devin G. E.
dc.date2006-12-02
dc.date2007-12-12
dc.date.accessioned2026-07-07T11:22:15Z
dc.date.available2026-07-07T11:22:15Z
dc.descriptionWe study top quark pair production to probe new physics at the LHC. We propose reconstruction methods for $t\bar{t}$ semileptonic events and use them to reconstruct the $t\bar{t}$ invariant mass. The angular distribution of top quarks in their c.m. frame can determine the spin and production subprocess for each new physics resonance. Forward-backward asymmetry and CP-odd variables can be constructed to further delineate the nature of new physics. We parametrize the new resonances with a few generic parameters and show high invariant mass top pair production may provide an early indicator for new physics beyond the Standard Model.
dc.description5 pages, 4 figures; version to appear in PRL
dc.identifierhttps://arxiv.org/abs/hep-ph/0612016
dc.identifierhttp://arxiv.org/abs/hep-ph/0612016
dc.identifierPhys.Rev.Lett.100:031801,2008
dc.identifierdoi:10.1103/PhysRevLett.100.031801
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/194509
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Experiment
dc.titleTop Quark Pairs at High Invariant Mass - A Model-Independent Discriminator of New Physics at the LHC
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