Characterization of cubic Li$_{2}$$^{100}$MoO$_4$ crystals for the CUPID experiment
Abstract
The CUPID Collaboration is designing a tonne-scale, background-free detector to search for double beta decay with sufficient sensitivity to fully explore the parameter space corresponding to the inverted neutrino mass hierarchy scenario. One of the CUPID demonstrators, CUPID-Mo, has proved the potential of enriched LiMoO crystals as suitable detectors for neutrinoless double beta decay search. In this work, we characterised cubic crystals that, compared to the cylindrical crystals used by CUPID-Mo, are more appealing for the construction of tightly packed arrays. We measured an average energy resolution of (6.70.6) keV FWHM in the region of interest, approaching the CUPID target of 5 keV FWHM. We assessed the identification of particles with and without a reflecting foil that enhances the scintillation light collection efficiency, proving that the baseline design of CUPID already ensures a complete suppression of this -induced background contribution. We also used the collected data to validate a Monte Carlo simulation modelling the light collection efficiency, which will enable further optimisations of the detector.
Keywords
Cite
@article{arxiv.2011.13656,
title = {Characterization of cubic Li$_{2}$$^{100}$MoO$_4$ crystals for the CUPID experiment},
author = {A. Armatol and E. Armengaud and W. Armstrong and C. Augier and F. T. Avignone and O. Azzolini and A. Barabash and G. Bari and A. Barresi and D. Baudin and F. Bellini and G. Benato and M. Beretta and L. Bergè and M. Biassoni and J. Billard and V. Boldrini and A. Branca and C. Brofferio and C. Bucci and J. Camilleri and S. Capelli and L. Cappelli and L. Cardani and P. Carniti and N. Casali and A. Cazes and E. Celi and C. Chang and M. Chapellier and A. Charrier and D. Chiesa and M. Clemenza and I. Colantoni and F. Collamati and S. Copello and F. Cova and O. Cremonesi and R. J. Creswick and A. Cruciani and A. D'Addabbo and G. D'Imperio and I. Dafinei and F. A. Danevich and M. de Combarieu and M. De Jesus and P. de Marcillac and S. Dell'Oro and S. Di Domizio and V. Dompé and A. Drobizhev and L. Dumoulin and G. Fantini and M. Fasoli and M. Faverzani and E. Ferri and F. Ferri and F. Ferroni and E. Figueroa-Feliciano and J. Formaggio and A. Franceschi and C. Fu and S. Fu and B. K. Fujikawa and J. Gascon and A. Giachero and L. Gironi and A. Giuliani and P. Gorla and C. Gotti and P. Gras and M. Gros and T. D. Gutierrez and K. Han and E. V. Hansen and K. M. Heeger and D. L. Helis and H. Z. Huang and R. G. Huang and L. Imbert and J. Johnston and A. Juillard and G. Karapetrov and G. Keppel and H. Khalife and V. V. Kobychev and Yu. G. Kolomensky and S. Konovalov and Y. Liu and P. Loaiza and L. Ma and M. Madhukuttan and F. Mancarella and R. Mariam and L. Marini and S. Marnieros and M. Martinez and R. H. Maruyama and B. Mauri and D. Mayer and Y. Mei and S. Milana and D. Misiak and T. Napolitano and M. Nastasi and X. F. Navick and J. Nikkel and R. Nipoti and S. Nisi and C. Nones and E. B. Norman and V. Novosad and I. Nutini and T. O'Donnell and E. Olivieri and C. Oriol and J. L. Ouellet and S. Pagan and C. Pagliarone and L. Pagnanini and P. Pari and L. Pattavina and B. Paul and M. Pavan and H. Peng and G. Pessina and V. Pettinacci and C. Pira and S. Pirro and D. V. Poda and T. Polakovic and O. G. Polischuk and S. Pozzi and E. Previtali and A. Puiu and A. Ressa and R. Rizzoli and C. Rosenfeld and C. Rusconi and V. Sanglard and J. A. Scarpaci and B. Schmidt and V. Sharma and V. Shlegel and V. Singh and M. Sisti and D. Speller and P. T. Surukuchi and L. Taffarello and O. Tellier and C. Tomei and V. I. Tretyak and A. Tsymbaliuk and A. Vedda and M. Velazquez and K. J. Vetter and S. L. Wagaarachchi and G. Wang and L. Wang and B. Welliver and J. Wilson and K. Wilson and L. A. Winslow and M. Xue and L. Yan and J. Yang and V. Yefremenko and V. Yumatov and M. M. Zarytskyy and J. Zhang and A. Zolotarova and S. Zucchelli},
journal= {arXiv preprint arXiv:2011.13656},
year = {2020}
}