STI Publications - View Publication Form #15641

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Publication Information
Title Beam Dump Experiments with Photon and Electron Beams
Abstract Programs are underway to search for light dark matter (DM) with masses between 1 and 1000~MeV produced by photon and electron interactions in a beam dump. We summarize various strategies being pursued. Details are given on the Beam-Dump eXperiment (BDX) at Jefferson Lab, which will use a $\sim$1 m$^3$ segmented CsI(Tl) scintillator detector placed downstream of Hall A and accumulate 10$^{22}$ electrons-on-target (EOT) in 285 days. The dark matter signal is an electromagnetic shower of few hundreds of MeV, together with a reduced activity in the surrounding active veto counters. This experiment would be sensitive to elastic DM-electron and to inelastic DM scattering at the level of 10 counts per year, reaching the limit of the neutrino irreducible background.The proposed experiment will be sensitive to large regions of DM parameter space, exceeding the discovery potential of existing and planned experiments in the MeV-GeV DM mass range by up to two orders of magnitude.
Author(s) Elton Smith
Publication Date April 2018
Document Type Meeting
Primary Institution Thomas Jefferson National Accelerator Facility, Newport News
Affiliation Exp Nuclear Physics / Experimental Halls / Hall D
Funding Source Nuclear Physics (NP)
Proprietary? No
This publication conveys Literature Review and Summary
Document Numbers
JLAB Number: JLAB-PHY-18-2897 OSTI Number: 1976122
LANL Number: Other Number: DOE/OR/23177-6279
Associated with an experiment No
Associated with EIC No
Supported by Jefferson Lab LDRD Funding No
Meeting / Conference
Meeting Name APS 2018
Meeting Date 4/14/2018
Document Subtype Invited Talk (slides)
Attachments/Datasets/DOI Link
Document(s)
apsApril2018_smith.pdf (STI Document)
Dataset(s) (none)
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