arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1504.05596hep-ph
收藏

什么是循环?双希格斯粒子产生的剖析

What's in the Loop? The Anatomy of Double Higgs Production

S. Dawson, A. Ismail, Ian Low

摘要:

通过胶子聚变产生的双希格斯粒子来确定希格斯粒子的自相互作用是当前和未来对撞机实验的一个主要目标。我们指出,这个通道可以帮助解开和解决紫外线贡献的希格斯耦合到两个胶子的性质。利用运动学阈值附近的双希格斯振幅的解析性质,研究了标量粒子和费米子圈粒子介导的相互作用所产生的特征。聚焦于HH不变质谱,我们考虑了反常的顶部和底部汤川耦合,以及标量和费米子圈粒子的影响。特别是,在高hh不变质量的光谱是敏感的粒子在环的自旋。

英文摘要:

Determination of Higgs self-interactions through the double Higgs production from gluon fusion is a major goal of current and future collider experiments. We point out this channel could help disentangle and resolve the nature of ultraviolet contributions to Higgs couplings to two gluons. Analytic properties of the double Higgs amplitudes near kinematic threshold are used to study features resulting from scalar and fermionic loop particles mediating the interaction. Focusing on the hh invariant mass spectrum, we consider the effect from anomalous top and bottom Yukawa couplings, as well as from scalar and fermionic loop particles. In particular, the spectrum at high hh invariant mass is sensitive to the spin of the particles in the loop.

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。

↑