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Pierfrancesco Butti
Project Scientist - SLAC
Experimental Particle Physics PhD '17, University of Amsterdam
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Publications
6

Photon-rejection power of the Light Dark Matter eXperiment in an 8 GeV beam

Pierfrancesco ButtiJan 13, 2024
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The Light Dark Matter eXperiment (LDMX) is an electron-beam fixed-target experiment designed to achieve comprehensive model independent sensitivity to dark matter particles in the sub-GeV mass region. An upgrade to the LCLS-II accelerator will increase the beam energy available to LDMX from 4 to 8 GeV. Using detailed GEANT4-based simulations, we investigate the effect of the increased beam energy on the capabilities to separate signal and background, and demonstrate that the veto methodology developed for 4 GeV successfully rejects photon-induced backgrounds for at least 2 × 1014 electrons on target at 8 GeV.