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arXiv 2005.10289hep-phhep-ex
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multi-TeV μ子对撞机上的矢量玻色子融合

Vector boson fusion at multi-TeV muon colliders

Antonio Costantini, Federico De Lillo, Fabio Maltoni, Luca Mantani, Olivier Mattelaer, Richard Ruiz, Xiaoran Zhao

摘要:

高能轻子对撞机的质心能量在几TeV范围内,目前被认为是最具挑战性和影响深远的未来加速器项目之一。到目前为止,研究主要集中在轻子-反轻子湮灭通道中的新现象。在这项工作中,我们观察到,从碰撞机能量的几个TeV,电弱(EW)矢量玻色子融合/散射(VBF)在轻子对撞机成为主导生产模式的所有标准模型过程相关的研究EW部门。在许多情况下,我们发现这也适用于新物理学。我们量化的大小和增长的VBF截面与对撞机能量的一些SM和新的物理过程。通过考虑在μ子对撞机上实现的亮度场景,我们得出结论,这样的机器将有效地成为“高亮度弱玻色子对撞机”,并随后提供广泛的机会来精确测量EW和希格斯耦合以及发现新粒子。

英文摘要:

High-energy lepton colliders with a centre-of-mass energy in the multi-TeV range are currently considered among the most challenging and far-reaching future accelerator projects. Studies performed so far have mostly focused on the reach for new phenomena in lepton-antilepton annihilation channels. In this work we observe that starting from collider energies of a few TeV, electroweak (EW) vector boson fusion/scattering (VBF) at lepton colliders becomes the dominant production mode for all Standard Model processes relevant to studying the EW sector. In many cases we find that this also holds for new physics. We quantify the size and the growth of VBF cross sections with collider energy for a number of SM and new physics processes. By considering luminosity scenarios achievable at a muon collider, we conclude that such a machine would effectively be a "high-luminosity weak boson collider," and subsequently offer a wide range of opportunities to precisely measure EW and Higgs coupling as well as to discover new particles.

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