Probing neutral top-pion via a flavor-changing process $\gamma \gamma \to t\bar{c}{\Pi }_t^0$

Abstract

In the framework of topcolor-assisted-technicolor model(TC2), we study a flavor-changing neutral top-pion production process $\gamma \gamma \to t\bar{c}{\Pi }_t^0$. The study shows that there exists a resonance effect which can enhance the cross section up to a few fb even tens fb. For a yearly luminosity 100 $f{b}^{-1}$ at future linear colliders, there might be hundreds even thousands events to be produced. On the other hand, the background of such flavor-changing process is very clean due to the GIM mechanism in SM . With such sufficient events and clean background, neutral toppion could be detected at future linear colliders with high center of energy and luminosity. Our study provides a possible way to test TC2 model.

arXiv comment10 pages, 4 figures,has been accepted by Phys.Rev.D

References in corpus (14)

• Topcolor Assisted Technicolor
• Natural Topcolor--Assisted Technicolor
• GIM Violation and New Dynamics of the Third Generation
• New Method for Detecting Charged (Pseudo-)Scalars at Colliders
• Symmetry Breaking and Generational Mixing in Topcolor--Assisted Technicolor
• Threshold Effects on Heavy Quark Production in $\gamma \gamma$ Interactions
• Associated production of Intermediate Higgs or Z-boson with $t\bar{t}$ pair in $\gamma \gamma$ collision
• Probing Topcolor-Assisted Technicolor from Top-Charm Associated Production at LHC
• Neutral top-pion and top-charm production in high energy $e^{+}{e}^{-}$ collisions
• Production and decay of the neutral top-pion in high energy $e^{+}{e}^{-}$ colliders
• The study of a flavor-changing neutral toppion production process $e^{+}{e}^{-}\to t\bar{c}{\Pi }_t^0$
• Production of the neutral toppion at the e gamma colliders
• Associated production of neutral toppion with a pair of heavy quarks in $\gamma \gamma$ collisions
• Signatures of the neutral top-pion in $e\gamma$ collisions

Cited by in corpus (10)

• The flavor-changing single-top quark production in the littlest Higgs model with T parity at the LHC
• The flavor-changing top-charm quark production in the littlest Higgs model with T parity at the ILC
• Study of the single neutral top-pion production process at $\gamma \gamma$ collider
• $H_{TC}{\Pi }^0$ and ${\Pi }^{+}{\Pi }^{-}$ pair productions at the planned $e^{+}{e}^{-}$ colliders in the topcolor-assisted technicolor model
• The productions of the top-pions and top-Higgs associated with the charm quark at the hadron colliders
• Lepton flavor violating signals of the neutral top-pion in future lepton colliders
• Collapse of a self-similar cylindrical scalar field with non-minimal coupling II: strong cosmic censorship
• The flavor-changing top-charm associated productions at ILC in littlest Higgs model with T parity
• Associated production of a neutral top-Higgs with a heavy-quark pair in the γγcollisions at ILC
• The single t-quark productions via the flavor-changing processes in the topcolor-assisted technicolor model at the hadron colliders