【摘 要】
：
在TC2模型框架下研究了强子对撞机Tevatron和LHC上中性top-pion介子∏0t的产生过程pp(p-p)→∏0t∏0t和pp(p-p)→b∏0t.研究结果表明,在Tevatron上,这两个过程的产生截面都很
【机 构】
：
河南师范大学物理与信息工程学院,河南省南阳理工学院电子系
论文部分内容阅读
在TC2模型框架下研究了强子对撞机Tevatron和LHC上中性top-pion介子∏0t的产生过程pp(p-p)→∏0t∏0t和pp(p-p)→b∏0t.研究结果表明,在Tevatron上,这两个过程的产生截面都很小,通过这两个过程我们无法探测到中性top-pion介子.在LHC上,产生截面会大大增加,但通过∏0t∏0t的产生仍无法探测到中性top-pion介子.b∏0t在LHC上的产生截面能达到几百个fb甚至pb的量级,LHC每年能产生104-105个b∏0t事例.另外,味改变耦合∏0tt-c的存在,使得实验能通过背景非常干净的衰变道∏0t→t-c来探测∏0t.因此,通过b∏0t这一产生机制,未来的LHC实验应能获得足够多的可鉴别的∏0t事例.我们的研究结果,可为LHC上寻找中性top-pions介子检验TC2模型提供有价值的理论指导.
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