skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: A high efficiency photon veto for the Light Dark Matter eXperiment

Abstract

Fixed-target experiments using primary electron beams can be powerful discovery tools for light dark matter in the sub-GeV mass range. The Light Dark Matter eXperiment (LDMX) is designed to measure missing momentum in high-rate electron fixed-target reactions with beam energies of 4 GeV to 16 GeV. A prerequisite for achieving several important sensitivity milestones is the capability to efficiently reject backgrounds associated with few-GeV bremsstrahlung, by twelve orders of magnitude, while maintaining high efficiency for signal. The primary challenge arises from events with photo-nuclear reactions faking the missing-momentum property of a dark matter signal. We present a methodology developed for the LDMX detector concept that is capable of the required rejection. By employing a detailed GEANT4-based model of the detector response, we demonstrate that the sampling calorimetry proposed for LDMX can achieve better than $$10^{-13}$$ rejection of few-GeV photons. This suggests that the luminosity-limited sensitivity of LDMX can be realized at 4 GeV and higher beam energies.

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; more »; ; ; ; ; ; ; ; ; ; ; ; « less
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP)
Contributing Org.:
The LDMX collaboration
OSTI Identifier:
1608809
Alternate Identifier(s):
OSTI ID: 1614743
Report Number(s):
FERMILAB-PUB-19-620-SCD; SLAC-PUB-17495; arXiv:1912.05535
Journal ID: ISSN 1029-8479
Grant/Contract Number:  
AC02-76SF00515; AC02-07CH11359
Resource Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2020; Journal Issue: 4; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY

Citation Formats

Åkesson, Torsten, Blinov, Nikita, Bryngemark, Lene, Colegrove, Owen, Collura, Giulia, Dukes, Craig, Dutta, Valentina, Echenard, Bertrand, Eichlersmith, Thomas, Group, Craig, Hiltbrand, Joshua, Hitlin, David G., Incandela, Joseph, Krnjaic, Gordan, Lazaro, Juan, Li, Amina, Mans, Jeremiah, Masterson, Phillip, McCormick, Jeremy, Moreno, Omar, Mullier, Geoffrey, Nagar, Akshay, Nelson, Timothy, Niendorf, Gavin, Oyang, James, Petersen, Reese, Pöttgen, Ruth, Schuster, Philip, Siegel, Harrison, Toro, Natalia, Tran, Nhan, and Whitbeck, Andrew. A high efficiency photon veto for the Light Dark Matter eXperiment. United States: N. p., 2020. Web. https://doi.org/10.1007/JHEP04(2020)003.
Åkesson, Torsten, Blinov, Nikita, Bryngemark, Lene, Colegrove, Owen, Collura, Giulia, Dukes, Craig, Dutta, Valentina, Echenard, Bertrand, Eichlersmith, Thomas, Group, Craig, Hiltbrand, Joshua, Hitlin, David G., Incandela, Joseph, Krnjaic, Gordan, Lazaro, Juan, Li, Amina, Mans, Jeremiah, Masterson, Phillip, McCormick, Jeremy, Moreno, Omar, Mullier, Geoffrey, Nagar, Akshay, Nelson, Timothy, Niendorf, Gavin, Oyang, James, Petersen, Reese, Pöttgen, Ruth, Schuster, Philip, Siegel, Harrison, Toro, Natalia, Tran, Nhan, & Whitbeck, Andrew. A high efficiency photon veto for the Light Dark Matter eXperiment. United States. https://doi.org/10.1007/JHEP04(2020)003
Åkesson, Torsten, Blinov, Nikita, Bryngemark, Lene, Colegrove, Owen, Collura, Giulia, Dukes, Craig, Dutta, Valentina, Echenard, Bertrand, Eichlersmith, Thomas, Group, Craig, Hiltbrand, Joshua, Hitlin, David G., Incandela, Joseph, Krnjaic, Gordan, Lazaro, Juan, Li, Amina, Mans, Jeremiah, Masterson, Phillip, McCormick, Jeremy, Moreno, Omar, Mullier, Geoffrey, Nagar, Akshay, Nelson, Timothy, Niendorf, Gavin, Oyang, James, Petersen, Reese, Pöttgen, Ruth, Schuster, Philip, Siegel, Harrison, Toro, Natalia, Tran, Nhan, and Whitbeck, Andrew. Wed . "A high efficiency photon veto for the Light Dark Matter eXperiment". United States. https://doi.org/10.1007/JHEP04(2020)003. https://www.osti.gov/servlets/purl/1608809.
@article{osti_1608809,
title = {A high efficiency photon veto for the Light Dark Matter eXperiment},
author = {Åkesson, Torsten and Blinov, Nikita and Bryngemark, Lene and Colegrove, Owen and Collura, Giulia and Dukes, Craig and Dutta, Valentina and Echenard, Bertrand and Eichlersmith, Thomas and Group, Craig and Hiltbrand, Joshua and Hitlin, David G. and Incandela, Joseph and Krnjaic, Gordan and Lazaro, Juan and Li, Amina and Mans, Jeremiah and Masterson, Phillip and McCormick, Jeremy and Moreno, Omar and Mullier, Geoffrey and Nagar, Akshay and Nelson, Timothy and Niendorf, Gavin and Oyang, James and Petersen, Reese and Pöttgen, Ruth and Schuster, Philip and Siegel, Harrison and Toro, Natalia and Tran, Nhan and Whitbeck, Andrew},
abstractNote = {Fixed-target experiments using primary electron beams can be powerful discovery tools for light dark matter in the sub-GeV mass range. The Light Dark Matter eXperiment (LDMX) is designed to measure missing momentum in high-rate electron fixed-target reactions with beam energies of 4 GeV to 16 GeV. A prerequisite for achieving several important sensitivity milestones is the capability to efficiently reject backgrounds associated with few-GeV bremsstrahlung, by twelve orders of magnitude, while maintaining high efficiency for signal. The primary challenge arises from events with photo-nuclear reactions faking the missing-momentum property of a dark matter signal. We present a methodology developed for the LDMX detector concept that is capable of the required rejection. By employing a detailed GEANT4-based model of the detector response, we demonstrate that the sampling calorimetry proposed for LDMX can achieve better than $10^{-13}$ rejection of few-GeV photons. This suggests that the luminosity-limited sensitivity of LDMX can be realized at 4 GeV and higher beam energies.},
doi = {10.1007/JHEP04(2020)003},
journal = {Journal of High Energy Physics (Online)},
number = 4,
volume = 2020,
place = {United States},
year = {2020},
month = {4}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Save / Share:

Works referenced in this record:

Geant4—a simulation toolkit
journal, July 2003

  • Agostinelli, S.; Allison, J.; Amako, K.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 506, Issue 3
  • DOI: 10.1016/S0168-9002(03)01368-8

Photoproduction of Positive Pions at Backward Angles in the Energy Range 1-3 GeV
journal, September 1968


Analysis of response data for several organic scintillators
journal, April 1970


Multiple hadron production by 14.5 GeV electron and positron scattering from nuclear targets
journal, August 1994

  • Degtyarenko, P. V.; Button-Shafer, J.; Elouadrhiri, L.
  • Physical Review C, Vol. 50, Issue 2
  • DOI: 10.1103/PhysRevC.50.R541

High-Energy Photoproduction of Charged Pions at Backward Angles
journal, September 1969


Recent developments in Geant4
journal, November 2016

  • Allison, J.; Amako, K.; Apostolakis, J.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 835
  • DOI: 10.1016/j.nima.2016.06.125

MadGraph/MadEvent v4: the new web generation
journal, September 2007


Inclusive photoproton spectra from 12C at intermediate energies
journal, September 1986


Combined search for light dark matter with electron and muon beams at NA64
journal, September 2019


A model for low-pT hadronic reactions with generalizations to hadron-nucleus and nucleus-nucleus collisions
journal, January 1987


Analyzing the Discovery Potential for Light Dark Matter
journal, December 2015


The Geant4 Bertini Cascade
journal, December 2015

  • Wright, D. H.; Kelsey, M. H.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 804
  • DOI: 10.1016/j.nima.2015.09.058