Na-based crystal scintillators for next-generation rare event searches

S. Nagorny; C. Rusconi; S. Sorbino; J. W. Beeman; F. Bellini; L. Cardani; V. D. Grigorieva; L. Pagnanini; S. Nisi; S. Pirro; K. Schäffner; V. N. Shlegel

doi:10.1016/j.nima.2020.164160

arXiv · 1911.13217

Na-based crystal scintillators for next-generation rare event searches

S. Nagorny·C. Rusconi·S. Sorbino·J. W. Beeman·F. Bellini·L. Cardani·V. D. Grigorieva·L. Pagnanini·S. Nisi·S. Pirro·K. Schäffner·V. N. Shlegel

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Abstract

The growing interest in clarifying the controversial situation in the Dark Matter sector has driven the experimental efforts towards new ways to investigate the long-standing DAMA/LIBRA result. Among them, low-temperature calorimeters based on Na-containing scintillating crystals offer the possibility to clarify the nature of the measured signal via particle identification. Here we report the first measurement of Na-containing crystals, based on material different from NaI, i.e. Na$_2$Mo$_2$O$_7$ and Na$_2$W$_2$O$_7$, pointing out their excellent performance in term of energy resolution, light yield, and particle identification.

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S. Nagorny, C. Rusconi, S. Sorbino, J. W. Beeman, F. Bellini, L. Cardani, V. D. Grigorieva, L. Pagnanini, S. Nisi, S. Pirro, K. Schäffner, V. N. Shlegel. 2019-11-26. Na-based crystal scintillators for next-generation rare event searches. https://doi.org/10.1016/j.nima.2020.164160

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