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arXiv 1605.06372hep-ph
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100 TeV胶子聚变中多Higgs粒子的产生

Multi-Higgs production in gluon fusion at 100 TeV

Celine Degrande, Valentin V. Khoze, Olivier Mattelaer

摘要:

我们对未来圆形强子对撞机相关的高能区和高Higgs多重数极限(> 20)下胶子熔合通道中的多Higgs产生过程进行了详细的研究。我们的结果是基于计算领先的多边形-三角形,盒子,五边形和六边形-散射过程,进一步结合后续的分支,以达到高的最终状态多重性。图数量的阶乘增长导致如此大的多重性横截面呈指数级增强,并最终导致微扰性的破坏。我们发现,这些微扰率变得高度增强,并随着能量的增加而增长的特征能量和多重性尺度是在100 TeV的制度与130希格斯(或更多)的顺序在最终状态。我们还表明,已经为50 TeV的强子对撞机的微扰截面为140玻色子的皮巴水平。

英文摘要:

We carry out a detailed study of multi-Higgs production processes in the gluon fusion channel in the high energy regime relevant to Future Circular hadron colliders and in the high-Higgs-multiplicity limit (> 20). Our results are based on the computation of the leading polygons - the triangles, boxes, pentagons and hexagons - to the scattering processes, further combined with the subsequent branchings to reach high final state multiplicities. The factorial growth of the number of diagrams leads to an exponential enhancement of such large multiplicity cross-sections and, ultimately, in breaking of perturbativity. We find that the characteristic energy and multiplicity scales where these perturbative rates become highly enhanced and grow with increasing energy are within the 100 TeV regime with of the order of 130 Higgses (or more) in the final state. We also show that already for a 50 TeV hadron collider the perturbative cross-sections for 140 bosons are at picobarn level.

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