Searches for new physics at SND@LHC

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Abstract

SND@LHC is an approved experiment equipped to detect scatterings of neutrinos produced in the far-forward direction at the LHC, and aimed to measure their properties. In addition, the detector has a potential to search for new feebly interacting particles (FIPs) that may be produced in proton-proton collisions. In this paper, we discuss signatures of new physics at SND@LHC for two classes of particles: stable FIPs that may be detected via their scattering, and unstable FIPs that decay inside the detector. We estimate the sensitivity of SND@LHC to probe scatterings of leptophobic dark matter and decays of neutrino, scalar, and vector portal particles. Finally, we also compare and qualitatively analyze the potential of SND@LHC and FASER/FASERν experiments for these searches.

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Boyarsky, A., Mikulenko, O., Ovchynnikov, M., & Shchutska, L. (2022). Searches for new physics at SND@LHC. Journal of High Energy Physics, 2022(3). https://doi.org/10.1007/JHEP03(2022)006

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