Application of Profile Likelihood Ratio and CLs Method in
  Data Analysis of PandaX-II Dark Matter Experiment

doi:10.16183/j.cnki.jsjtu.2019.12.015

Abstract

Abstract: The profile likelihood ratio statistics is used in the leading dark matter direct detection experiments around the world to perform the statistical analysis on the data. The results recently published in PandaX-II experiment present several constraints on the cross sections of dark matter scattering off nucleon via profile likelihood ratio and CLs method. This article introduces profile likelihood ratio and CLs method in detail and discusses how to construct profile likelihood ratio with the data analysis of PandaX-II as an example. The upper limits of the inelastic scattering cross section between dark matter particle and nucleon are obtained with CLs method.

Key words: dark matter direct detection; data analysis; inelastic scattering; profile likelihood ratio; CLs method

CLC Number:

O 4-33

ABDUKERIM Abdusalam，CHEN Xun，IMINNIYAZ Hoernisa. Application of Profile Likelihood Ratio and CLs Method in Data Analysis of PandaX-II Dark Matter Experiment[J]. Journal of Shanghai Jiaotong University, 2019, 53(12): 1508-1514.

References

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Application of Profile Likelihood Ratio and CLs Method in Data Analysis of PandaX-II Dark Matter Experiment

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