A Global Analysis of Light and Charge Yields in Liquid Xenon [electronic resource].
- Washington, D.C. : United States. National Nuclear Security Administration, 2015. and Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
- Physical Description:
- pages 3,387-3,396 : digital, PDF file
- Additional Creators:
- Lawrence Livermore National Laboratory, United States. National Nuclear Security Administration, and United States. Department of Energy. Office of Scientific and Technical Information
- Here, we present an updated model of light and charge yields from nuclear recoils in liquid xenon with a simultaneously constrained parameter set. A global analysis is performed using measurements of electron and photon yields compiled from all available historical data, as well as measurements of the ratio of the two. These data sweep over energies from keV and external applied electric fields from V/cm. The model is constrained by constructing global cost functions and using a simulated annealing algorithm and a Markov Chain Monte Carlo approach to optimize and find confidence intervals on all free parameters in the model. This analysis contrasts with previous work in that we do not unnecessarily exclude datasets nor impose artificially conservative assumptions, do not use spline functions, and reduce the number of parameters used in NEST v 0.98. Here, we report our results and the calculated best-fit charge and light yields. These quantities are crucial to understanding the response of liquid xenon detectors in the energy regime important for rare event searches such as the direct detection of dark matter particles.
- Published through SciTech Connect., 11/04/2015., "llnl-jrnl--664499", IEEE Transactions on Nuclear Science 62 6 ISSN 0018-9499 AM, and Brian Lenardo; Kareem Kazkaz; Aaron Manalaysay; Jeremy Mock; Matthew Szydagis; Mani Tripathi.
- Funding Information:
- AC52-07NA27344, FG02-91ER40674, and NA0000979
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