TeV resonances in top physics at the LHC

Autor:	Han, T, Rainwater, D L, Valencia, G
Jazyk:	angličtina
Rok vydání:	2003
Předmět:	High Energy Physics - Phenomenology High Energy Physics - Phenomenology (hep-ph) High Energy Physics::Phenomenology FOS: Physical sciences Particle Physics - Phenomenology
Popis:	We consider the possibility of studying novel particles at the TeV scale with enhanced couplings to the top quark via top quark pair production at the LHC and VLHC. In particular we discuss the case of neutral scalar and vector resonances associated with a strongly interacting electroweak symmetry breaking sector. We constrain the couplings of these resonances by imposing appropriate partial wave unitarity conditions and known low energy constraints. We evaluate the new physics signals via WW -> tt~ for various models without making approximation for the initial state W bosons, and optimize the acceptance cuts for the signal observation. We conclude that QCD backgrounds overwhelm the signals in both the LHC and a 200 TeV VLHC, making it impossible to study this type of physics in the tt~ channel at those machines. 15p, add. comments to clarify model, +2 ref., version to appear PRD
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::18a49c710848ce2fb06131244bc08606 http://arxiv.org/abs/hep-ph/0301039 Zobrazit plný text záznamu