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View of and from Lene Kristian's office window. The office mascot, a small pet pug, is sitting on top of a stack of books on the windowsill. Outside, there is a parking lot, trees and sky in the early dusk of a winter's day.

Lene Kristian Bryngemark

Researcher

View of and from Lene Kristian's office window. The office mascot, a small pet pug, is sitting on top of a stack of books on the windowsill. Outside, there is a parking lot, trees and sky in the early dusk of a winter's day.

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

Author

  • Torsten Åkesson
  • Cameron Bravo
  • Liam Brennan
  • Lene Kristian Bryngemark
  • Pierfrancesco Butti
  • E. Craig Dukes
  • Valentina Dutta
  • Bertrand Echenard
  • Thomas Eichlersmith
  • Jonathan Eisch
  • Einar Elén
  • Ralf Ehrlich
  • Cooper Froemming
  • Andrew Furmanski
  • Niramay Gogate
  • Chiara Grieco
  • Craig Group
  • Hannah Herde
  • Christian Herwig
  • David G. Hitlin
  • Tyler Horoho
  • Joseph Incandela
  • Wesley Ketchum
  • Gordan Krnjaic
  • Amina Li
  • Jeremiah Mans
  • Phillip Masterson
  • Sophie Middleton
  • Omar Moreno
  • Geoffrey Mullier
  • Joseph Muse
  • Timothy Nelson
  • Rory O’Dwyer
  • Leo Östman
  • James Oyang
  • Jessica Pascadlo
  • Ruth Pöttgen
  • Luis G. Sarmiento
  • Philip Schuster
  • Matthew Solt
  • Cristina Mantilla Suarez
  • Lauren Tompkins
  • Natalia Toro
  • Nhan Tran
  • Erik Wallin
  • Andrew Whitbeck
  • Danyi Zhang
Show all

Summary, in English

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. [Figure not available: see fulltext.]

Department/s

  • Particle and nuclear physics
  • Department of Physics
  • Nuclear physics

Publishing year

2023-12

Language

English

Publication/Series

Journal of High Energy Physics

Volume

2023

Issue

12

Document type

Journal article

Publisher

Springer

Topic

  • Subatomic Physics

Keywords

  • Beyond Standard Model
  • Dark Matter
  • Fixed Target Experiments

Status

Published

ISBN/ISSN/Other

  • ISSN: 1029-8479