Production of the neutral toppion at the e gamma colliders

Abstract

In the framework of topcolor-assisted technicolor(TC2) model, we study a neutral toppion production process $e^{-}\gamma \to e^{-}{\Pi }_t^0$ in this paper. Our results show that the production cross section of $e^{-}\gamma \to e^{-}{\Pi }_t^0$ can reach the level of several tens fb, and over $10^3$ neutral toppion events can be produced in the planned $e^{+}{e}^{-}$ linear colliders each year. Therefore, such a toppion production process provides us a unique chance to detect toppion events and test the TC2 model. On the other hand, the cross section of $e^{-}\gamma \to e^{-}{\Pi }_t^0$ is about one order of magnitude larger than those of some similar processes in SM and MSSM(i.e., $e^{-}\gamma \to e^{-}H$ in SM and $e^{-}\gamma \to e^{-}{H}^0(A^0,h^0)$ in MSSM). So, we can easily distinguish the neutral toppion from other neutral Higgs bosons in SM and MSSM.

12 pages, 4 figures, The paper has been accepted by Phys.Rev.D

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Cited by in corpus (9)

• The rare top quark decays $t\to cV$ in the topcolor-assisted technicolor model
• Probing neutral top-pion via a flavor-changing process $\gamma \gamma \to t\bar{c}{\Pi }_t^0$
• Associated production of neutral toppion with a pair of heavy quarks in $\gamma \gamma$ collisions
• Detecting the neutral top-pion at $e^{+}{e}^{-}$ colliders
• Production of the top-pions at the THERA collider based $\gamma p$ collisions
• $H_{TC}{\Pi }^0$ and ${\Pi }^{+}{\Pi }^{-}$ pair productions at the planned $e^{+}{e}^{-}$ colliders in the topcolor-assisted technicolor model
• Study of the single neutral top-pion production process at $\gamma \gamma$ collider
• Detecting the neutral top-pion at future muon colliders
• The productions of the top-pions and top-Higgs associated with the charm quark at the hadron colliders