Study of the single neutral top pion production process at {gamma}{gamma} collider
Study of the single neutral top pion production process at {gamma}{gamma} collider
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DOI：
10.1103/physrevd.72.095012
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发表时间：
2005-10
影响因子：
5
通讯作者：
Xue-lei Wang;Xiaoxue Wang
中科院分区：
文献类型：
--
作者：
Xue-lei Wang;Xiaoxue Wang
{gamma}{gamma}{yields}{pi}{sub t}{sup 0} is the major production mechanism of the neutral top pion at the linear colliders. In this paper, we calculate the cross section of the process {gamma}{gamma}{yields}{pi}{sub t}{sup 0} and discuss the potential to observe the neutral top pion via its various decay modes at the planned International Linear Collider. The study shows that, among the various neutral top-pion production processes at the linear colliders, the cross section of {gamma}{gamma}{yields}{pi}{sub t}{sup 0} is the largest one which can reach the level of 10{sup 1}-10{sup 2} fb. Because of the existence of the tree-level flavor-changing coupling {pi}{sub t}{sup 0}tc, {gamma}{gamma}{yields}{pi}{sub t}{sup 0}{yields}tc can provide enough number of typical signals to identify the neutral top pion with the clean SM background. Therefore, the process {gamma}{gamma}{yields}{pi}{sub t}{sup 0} plays an important role in searching for the neutral top pion and tests the TC2 model.
