Top quark associated production of the neutral top-pion at high energy $e^{+}e^{-}$ colliders

Details Top quark associated production of the neutral top-pion at high energy $e^{+}e^{-}$ colliders Top quark associated production of the neutral top-pion at high energy $e^{+}e^{-}$ colliders

2002-04-03

arxiv.org/abs/hep-ph/0204033v1

Phys.Rev. D65 (2002) 095010

Physics

High Energy Physics

High Energy Physics - Phenomenology

Latex files, 10 pages and 3 figures

Scientific paper

10.1103/PhysRevD.65.095010

In the context of topcolor-assisted technicolor (TC2) models, we calculate the associated production of the neutral top-pion $\pi_{t}^{0}$ with a pair of top quarks via the process $e^{+}e^{-}\longrightarrow t\bar{t}\pi_{t}^{0}$. We find that the production cross section is larger than that of the process $ e^{+}e^{-}\longrightarrow t\bar{t}H$ both in the standard model (SM) and in the minimal supersymmetric SM. With reasonable values of the parameters in TC2 models, the cross section can reach $20fb$. The neutral top-pion $\pi_{t}^{0}$ may be direct observed via this process.

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