Heavy QQ(bar) "Fireball" Annihilation to Multiple Vector Bosons

preprint2012arXivOpen access

Abstract

Drawing analogy of replacing the nucleon by heavy chiral quark QQ, the pion by Goldstone boson GG, and πNNπNN coupling by GQQGQQ coupling, we construct a statistical model for QQˉ→nGQ\bar Q \to nG annihilation, i.e. into nn longitudinal weak bosons. This analogy is becoming prescient since the LHC direct bound mQ>611m_Q > 611 GeV implies strong Yukawa coupling. Taking mQ∈(1,2)m_Q \in (1, 2) TeV, the mean number <nG><n_G> ranges from 6 to over 10, with negligible two or three boson production. With individual t′t' or b′b' decays suppressed either by phase space or quark mixing, and given the strong Yukawa coupling, QQˉ→nVLQ\bar Q\to nV_L is the likely outcome for very heavy QQˉQ\bar Q production at the LHC.

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