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arXiv 1109.4847hep-phhep-ex
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在未来对撞机上测试小希格斯机制

Testing Little Higgs Mechanism at Future Colliders

Keisuke Harigaya, Shigeki Matsumoto, Mihoko M. Nojiri, Kohsaku Tobioka

摘要:

在小希格斯模型框架下,几种相互作用的耦合常数相互关联,保证了希格斯玻色子质量在单圈水平上的稳定性。这种关系被称为小希格斯机制。我们讨论如何准确的关系可以在未来的e+e-对撞机进行测试,特别是专注于使用有效拉格朗日方法的方案的顶部部门。为了在顶部扇区测试该机制,重要的是测量顶部伙伴的汤川耦合。我们考虑了希格斯关联产生和最高伙伴的阈值产生,发现当质心能量足够大时,利用关联产生可以精确地检验该机制。阈值产生也允许我们测试它,即使中心质量能量不是那么大。

英文摘要:

In the framework of the little higgs scenario, coupling constants of several interactions are related to each other to guarantee the stability of the higgs boson mass at one-loop level. This relation is called the little higgs mechanism. We discuss how accurately the relation can be tested at future e+e- colliders, with especially focusing on the top sector of the scenario using a method of effective lagrangian. In order to test the mechanism at the top sector, it is important to measure the Yukawa coupling of the top partner. We consider higgs associated production and threshold production of the top partner, and find that the mechanism can be tested precisely using the associate production when the center of mass energy is large enough. The threshold production also allows us to test it even if the center mass energy is not so large.

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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