Higgs self-coupling measurements at a 100 TeV hadron collider
Higgs self-coupling measurements at a 100 TeV hadron collider
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DOI：
10.1007/jhep02(2015)016
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发表时间：
2014-12
影响因子：
5.4
通讯作者：
A. Barr;M. Dolan;C. Englert;D. D. Lima-D.;M. Spannowsky
中科院分区：
文献类型：
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作者：
A. Barr;M. Dolan;C. Englert;D. D. Lima-D.;M. Spannowsky
下一代可能的高能强子对撞机的一个重要物理目标将是精确描述希格斯扇区和电弱对称性破缺。理解电弱对称性破缺的本质的一个关键部分是测量希格斯粒子的自相互作用。我们研究双希格斯生产质子-质子碰撞在100 TeV中心的质量能量，以估计这样的机器将有变化的三线性希格斯耦合周围的标准模型的期望的灵敏度。我们专注于最后的状态，包括利用双希格斯反冲对硬喷流的灵敏度可能的增强。我们发现，它应该是可能的测量三线性自耦合与40%的精度给定3/ab和12%与30/ab的数据。
An important physics goal of a possible next-generation high-energy hadron collider will be precision characterisation of the Higgs sector and electroweak symmetry breaking. A crucial part of understanding the nature of electroweak symmetry breaking is measuring the Higgs self-interactions. We study dihiggs production in proton-proton collisions at 100 TeV centre of mass energy in order to estimate the sensitivity such a machine would have to variations in the trilinear Higgs coupling around the Standard Model expectation. We focus on thefinal state, including possible enhancements in sensitivity by exploiting dihiggs recoils against a hard jet. We find that it should be possible to measure the trilinear self-coupling with 40% accuracy given 3/ab and 12% with 30/ab of data.