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arXiv 0802.1937hep-ph
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e^+e^-碰撞中顶夸克自旋关联的非粒子效应

Unparticle Effects on Top Quark Spin Correlations in e^+e^- Collision

B. Sahin

摘要:

通过过程$e^{+}e^{-}\to t \bar{t}$研究了标量和矢量非粒子对顶夸克自旋关联的影响。除了标准模型图之外,在s-通道中,还发现了一个由非粒子介导的顶-反顶夸克产生过程的新贡献。结果表明,标量和矢量非粒子的贡献,导致相当大的偏离标准模型的顶自旋关联。

英文摘要:

We investigate the effects of scalar and vector unparticles on top quark spin correlations via the process $e^{+}e^{-}\to t \bar{t}$. In addition to the Standard Model diagrams, there is a new contribution to top-antitop quark production process mediated by unparticle in the s-channel. It is shown that scalar and vector unparticle contribution leads to a considerable deviation of the top spin correlations from the Standard Model one.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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