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arXiv 1412.7154hep-phhep-ex
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在100 TeV强子对撞机上的Higgs自耦合测量

Higgs Self-Coupling Measurements at a 100 TeV Hadron Collider

Alan J. Barr, Matthew J. Dolan, Christoph Englert, Danilo Enoque Ferreira de Lima, Michael Spannowsky

摘要:

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预期的敏感性。我们专注于两个b-喷流加双光子的最终状态,包括可能的提高灵敏度,利用双希格斯反冲对硬喷流。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。

英文摘要:

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 the two b-jets plus diphotons final 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.

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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