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Title: Enhancement of NEST capabilities for simulating low-energy recoils in liquid xenon

The Noble Element Simulation Technique (NEST) is an extensive collection of models explaining both the scintillation light and ionization yields of noble elements as a function of particle type (nuclear recoils, electron recoils, alphas), electric field, and incident energy or energy loss (dE/dx). It is packaged as C++ code for Geant4 that implements said models, overriding the default model which does not account for certain complexities, such as the reduction in yields for nuclear recoils (NR) compared to electron recoils (ER). We present in this paper improvements to the existing NEST models and updates to the code which make the package even more realistic and turn it into a more full-fledged Monte Carlo simulation. All available liquid xenon data on NR and ER to date have been taken into consideration in arriving at the current models. Finally and furthermore, NEST addresses the question of the magnitude of the light and charge yields of nuclear recoils, including their electric field dependence, thereby helping to understand the capabilities of liquid xenon detectors for detection or exclusion of a low-mass dark matter WIMP.
Authors:
 [1] ;  [2] ;  [1] ;  [1]
  1. Univ. of California, Davis, CA (United States). Physics Dept.
  2. Univ. of California, Berkeley, CA (United States). Physics Dept.
Publication Date:
Grant/Contract Number:
NA0000979; FG02-91ER40674
Type:
Accepted Manuscript
Journal Name:
Journal of Instrumentation
Additional Journal Information:
Journal Volume: 8; Journal Issue: 10; Journal ID: ISSN 1748-0221
Publisher:
Institute of Physics (IOP)
Research Org:
Univ. of California, Davis, CA (United States)
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA), Office of Defense Nuclear Nonproliferation (NA-20); USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; noble liquid detectors; Dark Matter detectors; scintillators; scintillation and light emission processes; simulation methods and programs
OSTI Identifier:
1454529

Szydagis, M., Fyhrie, A., Thorngren, D., and Tripathi, M.. Enhancement of NEST capabilities for simulating low-energy recoils in liquid xenon. United States: N. p., Web. doi:10.1088/1748-0221/8/10/C10003.
Szydagis, M., Fyhrie, A., Thorngren, D., & Tripathi, M.. Enhancement of NEST capabilities for simulating low-energy recoils in liquid xenon. United States. doi:10.1088/1748-0221/8/10/C10003.
Szydagis, M., Fyhrie, A., Thorngren, D., and Tripathi, M.. 2013. "Enhancement of NEST capabilities for simulating low-energy recoils in liquid xenon". United States. doi:10.1088/1748-0221/8/10/C10003. https://www.osti.gov/servlets/purl/1454529.
@article{osti_1454529,
title = {Enhancement of NEST capabilities for simulating low-energy recoils in liquid xenon},
author = {Szydagis, M. and Fyhrie, A. and Thorngren, D. and Tripathi, M.},
abstractNote = {The Noble Element Simulation Technique (NEST) is an extensive collection of models explaining both the scintillation light and ionization yields of noble elements as a function of particle type (nuclear recoils, electron recoils, alphas), electric field, and incident energy or energy loss (dE/dx). It is packaged as C++ code for Geant4 that implements said models, overriding the default model which does not account for certain complexities, such as the reduction in yields for nuclear recoils (NR) compared to electron recoils (ER). We present in this paper improvements to the existing NEST models and updates to the code which make the package even more realistic and turn it into a more full-fledged Monte Carlo simulation. All available liquid xenon data on NR and ER to date have been taken into consideration in arriving at the current models. Finally and furthermore, NEST addresses the question of the magnitude of the light and charge yields of nuclear recoils, including their electric field dependence, thereby helping to understand the capabilities of liquid xenon detectors for detection or exclusion of a low-mass dark matter WIMP.},
doi = {10.1088/1748-0221/8/10/C10003},
journal = {Journal of Instrumentation},
number = 10,
volume = 8,
place = {United States},
year = {2013},
month = {10}
}