6533b858fe1ef96bd12b5756
RESEARCH PRODUCT
Instrumentation and optimization studies for a beam dump experiment (BDX) at MESA — DarkMESA
F. E. MaasM. ChristmannS. BaunackLuca DoriaPatrick AchenbachP.f. BurgerHarald MerkelAchim Denigsubject
PhysicsNuclear and High Energy PhysicsCalorimeter (particle physics)010308 nuclear & particles physicsInstrumentationDetectorParticle accelerator01 natural sciencesDark photonlaw.inventionNuclear physicslaw0103 physical sciencesBeam dump010306 general physicsInstrumentationMicrotronCherenkov radiationdescription
Abstract At the Institute for Nuclear Physics in Mainz the new electron accelerator MESA will go into operation within the next years. The high-power beam dump of the P2 experiment is ideally suited for a parasitic dark sector experiment — DarkMESA. In the first stage 1,000 high density Cherenkov radiators from a previous experiment will be used. The experiment is studied with a simulation based on MadGraph and Geant4 . The simulation includes an optical photon study, where the response of possible calorimeter materials – PbF 2, BGO, the Pb glasses SF5, SF6 and SF57HTultra from Schott – was investigated. The simulation outcomes are compared with the results of prototypes tested at the Mainz Microtron (MAMI) with 6 to 14 MeV electrons. The exclusion limits for PbF2 are shown, together with the limits obtained incrementally adding Pb glass blocks in two successive phases. The current development status of a prototype detector will be described, including a concept for a cosmics veto system.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2020-04-01 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |