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arXiv · 1503.07225

Muon-induced neutrons do not explain the DAMA data

J. Klinger·V. A. Kudryavtsev
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Abstract

We present an accurate model of the muon-induced background in the DAMA/LIBRA experiment. Our work challenges proposed mechanisms which seek to explain the observed DAMA signal modulation with muon-induced backgrounds. Muon generation and transport are performed using the MUSIC/MUSUN code, and subsequent interactions in the vicinity of the DAMA detector cavern are simulated with Geant4. We estimate the total muon-induced neutron flux in the detector cavern to be $Φ_n^ν= 1.0\times10^{-9}$ cm$^{-2}$ s$^{-1}$. We predict $3.49\times10^{-5}$ counts/day/kg/keV, which accounts for less than $0.3\%$ of the DAMA signal modulation amplitude.

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J. Klinger, V. A. Kudryavtsev. 2015-03-24. Muon-induced neutrons do not explain the DAMA data. https://doi.org/10.1103/physrevlett.114.151301

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