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DOE OSTI · 3012613

Beam-beam backgrounds for the Cool Copper Collider

Ntounis, Dimitrios [Stanford Univ., CA (United States); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)] (ORCID:0009000810635620)·Gordon, Laith [Stanford Univ., CA (United States)] (ORCID:0009000459595392)·Gray, Lindsey [Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)] (ORCID:0000000264084288)·Mettner, Elias [Univ. of Wisconsin, Madison, WI (United States)] (ORCID:0000000312678460)·Barklow, Tim [SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)] (ORCID:000000027709037X)·Nanni, Emilio A. [Stanford Univ., CA (United States); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)] (ORCID:0000000219000778)·Vernieri, Caterina [Stanford Univ., CA (United States); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)] (ORCID:0000000202351053)
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Abstract

In this paper, we present a comprehensive characterization of beam-beam backgrounds for the Cool Copper Collider (C 3 ), a proposed linear e + e - collider designed for precision Higgs studies at center-of-mass energies of 250 and 550 GeV. Using a simulation pipeline based on the Key4hep framework, we evaluate incoherent pair production and hadron photoproduction backgrounds through the SiD detector for baseline, power-efficiency, and high-luminosity C 3 operating scenarios. The occupancy induced by the beam-beam background is evaluated for each scenario, validating the compatibility of the existing SiD detector design with operations at C 3 without substantial modifications. Furthermore, at the same time, the modular simulation framework and analysis methodology presented in this paper offer a versatile toolkit for background studies in future collider proposals, contributing to a common platform for different machine designs.

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Ntounis, Dimitrios [Stanford Univ., CA (United States); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)] (ORCID:0009000810635620), Gordon, Laith [Stanford Univ., CA (United States)] (ORCID:0009000459595392), Gray, Lindsey [Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)] (ORCID:0000000264084288), Mettner, Elias [Univ. of Wisconsin, Madison, WI (United States)] (ORCID:0000000312678460), Barklow, Tim [SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)] (ORCID:000000027709037X), Nanni, Emilio A. [Stanford Univ., CA (United States); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)] (ORCID:0000000219000778), Vernieri, Caterina [Stanford Univ., CA (United States); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)] (ORCID:0000000202351053). 2026-02-11. Beam-beam backgrounds for the Cool Copper Collider. https://doi.org/10.1088/1748-0221%2F21%2F02%2Fp02024

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