Secondary cascades in the TAXN absorber produce a substantial millicharged particle flux that complements primary production and boosts FORMOSA signals by ~50% for m_χ below 0.1 GeV.
SND@LHC Upgrade for the High-Luminosity LHC: Physics Reach and Installation Scenarios
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abstract
The SND@LHC experiment is currently taking data at the Large Hadron Collider (LHC), exploring the unique forward region at pseudorapidities from 7.2 to 8.4. Its physics programme covers neutrinos originating from heavy-flavour decays and feebly interacting particles produced in proton proton collisions. Building upon the successful operation of the present detector, this paper presents the physics reach of the approved SND@LHC upgrade for Run4 of the LHC, and compares it with an alternative installation scenario. Lowering the detector by approximately 40 cm and shifting it horizontally by about 30 cm, while keeping it off-axis, increases the total neutrino interaction rate by a factor of five. The paper describes the design of the upgraded detector and compare the physics performance in both installation scenarios.
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SM predictions show neutrino trident scattering is potentially observable at HL-LHC SND and SHiP for specific lepton combinations.
citing papers explorer
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A New Source of Millicharged Particles: Secondary Showers in the LHC Forward Absorber
Secondary cascades in the TAXN absorber produce a substantial millicharged particle flux that complements primary production and boosts FORMOSA signals by ~50% for m_χ below 0.1 GeV.
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Probing the neutrino trident process using the Scattering and Neutrino Detector at HL-LHC and SHiP
SM predictions show neutrino trident scattering is potentially observable at HL-LHC SND and SHiP for specific lepton combinations.