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arXiv · 2203.08484

XCC: An X-ray FEL-based $\gamma\gamma$ Collider Higgs Factory

Tim Barklow·Su Dong·Claudio Emma·Joseph Duris·Zhirong Huang·Adham Naji·Emilio Nanni·James Rosenzweig·Anne Sakdinawat·Sami Tantawi·Glen White
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Abstract

This report describes the design of a $\gamma\gamma$ Higgs factory in which 62.8 GeV electron beams collide with 1 keV X-ray free electron laser (XFEL) beams to produce colliding beams of 62.5 GeV photons. The Higgs boson production rate is 34,000 Higgs bosons per $10^7$ second year, roughly the same as the ILC Higgs rate. The electron accelerator is based on cold copper distributed coupling (C$^3$) accelerator technology. The 0.7 J pulse energy of the XFEL represents a 300-fold increase over the pulse energy of current soft x-ray FEL's. Design challenges are discussed, along with the R\&D to address them, including demonstrators.

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Tim Barklow, Su Dong, Claudio Emma, Joseph Duris, Zhirong Huang, Adham Naji, Emilio Nanni, James Rosenzweig, Anne Sakdinawat, Sami Tantawi, Glen White. 2022-03-16. XCC: An X-ray FEL-based $\gamma\gamma$ Collider Higgs Factory. https://arxiv.org/abs/2203.08484

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