TECHNICOLOR ENHANCEMENT OF tt̄ PRODUCTION AT TeV-COLLIDERS
نویسنده
چکیده
It is shown that a technicolor theory containing a color-octet technipion, usually denoted by P 0 ′ 8 , will give rise to an enhancement of tt̄ production at the Tevatron, LHC and SSC, via the process gg → P 0′ 8 → tt̄. The relevant cross-sections are computed taking into account the large lower bound on the top mass coming from the ”top search” experiments at LEP and CDF. At the LHC and SSC, the signal is found to be comparable to the QCD background, making the process quite accesible.
منابع مشابه
Discovery Mass Reach for Topgluons Decaying to tt̄ at the Tevatron
In topcolor assisted technicolor, topgluons are massive gluons which couple mainly to top and bottom quarks. We estimate the mass reach for topgluons decaying to tt̄ at the Tevatron as a function of integrated luminosity. The mass reach for topgluons decreases with increasing topgluon width, and is 1.0− 1.1 TeV for Run II (2 fb) and 1.3− 1.4 TeV for TeV33 (30 fb). I. TOPCOLOR AND TOPGLUONS Topco...
متن کاملTop quark associated production of topcolor pions at hadron colliders
We investigate the associated production of a neutral physical pion with top quarks in the context of topcolor assisted technicolor. We find that single-top associated production does not yield viable rates at either the Tevatron or LHC. tt̄-associated production at the Tevatron is suppressed relative to Standard Model tt̄H, but at the LHC is strongly enhanced and would allow for easy observation...
متن کاملTop-quark couplings to TeV resonances at future lepton colliders
We study the processes WLWL → tt̄ and WLZL → tb̄ (t̄b) at future lepton colliders as probes of the couplings of the top quark to resonances at the TeV scale. We consider the cases in which the dominant low energy feature of a strongly interacting electroweak symmetry breaking sector is either a scalar or a vector resonance with mass near 1 TeV. We find that future lepton colliders with high energy...
متن کاملParity Violating Asymmetries in Top Pair Production at Hadron Colliders
We study loop-induced parity violating asymmetries in the strong production of polarized top quark pairs at pp and pp̄ colliders. The electroweak O(α) corrections to the helicity amplitudes of qq̄ → tt̄ and gg → tt̄ are evaluated in a two Higgs doublet model (2HDM) and the minimal supersymmetric standard model (MSSM). While observables in top quark pair production receive little contribution from s...
متن کاملDiscovery Mass Reach for Topgluons Decaying to bb̄ at the Tevatron
In topcolor assisted technicolor, topgluons are massive gluons which couple mainly to top and bottom quarks. We estimate the mass reach for topgluons decaying to bb̄ at the Tevatron as a function of integrated luminosity. The mass reach for topgluons decreases with increasing topgluon width, and is 0.77 − 0.95 TeV for Run II (2 fb) and 1.0−1.2 TeV for TeV33 (30 fb). I. TOPCOLOR AND TOPGLUONS Top...
متن کامل