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arXiv 0802.2818hep-ph
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顶夸克自旋对γγ \to t \bar{t}非粒子耦合的影响

Effect of top quark spin on the unparticle couplings in γγ\to t\bar{t}

I. Sahin

摘要:

我们研究了$γγ$碰撞通过顶-反顶夸克对产生探测标量非粒子耦合的可能性。我们发现95%的置信水平的限制与$500 fb^{-1}$和$\sqrt{s}=1$ TeV的能量的积分亮度的非粒子耦合。研究了顶夸克自旋极化对非粒子耦合的影响。结果表明,自旋极化的顶夸克导致显着改善的灵敏度极限。

英文摘要:

We investigate the potential of $γγ$ collisions to probe scalar unparticle couplings via top-antitop quark pair production. We find 95% confidence level limits on the unparticle couplings with an integrated luminosity of $500 fb^{-1}$ and $\sqrt{s}=1$ TeV energy. We investigate the effect of top quark spin polarization on the unparticle couplings. It is shown that spin polarization of the top quark leads to a significant improvement in the sensitivity limits.

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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