Optimization of a single module of CUPID

Ressa, Alberto; Armatol, A.; Armengaud, E.; Armstrong, W.; Augier, C.; Avignone, F. T.; Azzolini, O.; Barabash, A.; Bari, G.; Barresi, A.; Baudin, D.; Bellini, F.; Benato, G.; Beretta, M.; Bergé, L.; Biassoni, M.; Billard, J.; Boldrini, V.; Branca, A.; Brofferio, C.; Bucci, C.; Camilleri, J.; Capelli, S.; Cappelli, L.; Cardani, L.; Carniti, P.; Casali, N.; Cazes, A.; Celi, E.; Chang, A.; Chapellier, M.; Charrier, A.; Chiesa, D.; Clemenza, M.; Colantoni, I.; Collamati, F.; Copello, S.; Cremonesi, O.; Creswick, R. J.; Cruciani, A.; Addabbo, A. D’; Imperio, G. D’; Dafinei, I.; Danevich, F. A.; Combarieu, M. de; Jesus, M. De; Marcillac, P. de; Dell’Oro, S.; Domizio, S. Di; Dompè, V.; Drobizhev, A.; Dumoulin, L.; Fantini, G.; Faverzani, M.; Ferri, E.; Ferri, F.; Ferroni, F.; Figueroa-Feliciano, E.; Formaggio, J.; Franceschi, A.; Fu, C.; Fu, S.; Fujikawa, B. K.; Gascon, J.; Giachero, A.; Gironi, L.; Giuliani, A.; Gorla, P.; Gotti, C.; Gras, P.; Gros, M.; Gutierrez, T. D.; Han, K.; Hansen, E. V.; Heeger, K. M.; Helis, B. L.; Huang, H. Z.; Huang, R. G.; Imbert, L.; Johnston, J.; Juillard, A.; Karapetrov, G.; Keppel, G.; Khalife, H.; Kobychev, V. V.; Kolomensky, Yu. G.; Konovalov, S.; Liu, Y.; Loaiza, P.; Ma, L.; Madhukuttan, M.; Mancarella, F.; Mariam, R.; Marini, L.; Marnieros, S.; Martinez, M.; Maruyama, R. H.; Mauri, B.; Mayer, D.; Mei, Y.; Milana, S.; Misiak, D.; Napolitano, T.; Nastasi, M.; Navick, X. F.; Nikkel, J.; Nipoti, R.; Nisi, S.; Nones, C.; Norman, C. B.; Novosad, V.; Nutini, I.; O’Donnell, T.; Olivieri, E.; Oriol, C.; Ouellet, J. L.; Pagan, S.; Pagliarone, C.; Pagnanini, L.; Pari, P.; Pattavina, L.; Paul, B.; Pavan, M.; Peng, H.; Pessina, G.; Pettinacci, V.; Pira, C.; Pirro, S.; Poda, D. V.; Polakovic, T.; Polischuk, O. G.; Pozzi, S.; Previtali, E.; Puiu, A.; Ressa, A.; Rizzoli, R.; Rosenfeld, C.; Rusconi, C.; Sanglard, V.; Scarpaci, J.; Schmidt, B.; Sharma, V.; Shlegel, V.; Singh, V.; Sisti, M.; Speller, D.; Surukuchi, P. T.; Taffarello, L.; Tellier, O.; Tomei, C.; Tretyak, V. I.; Tsymbaliuk, A.; Velazquez, M.; Vetter, K. J.; Wagaarachchi, S. L.; Wang, G.; Wang, L.; Welliver, B.; Wilson, J.; Wilson, K.; Winslow, L. A.; Xue, M.; Yan, L.; Yang, J.; Yefremenko, V.; Yumatov, V.; Zarytskyy, M. M.; Zhang, J.; Zolotarova, A.; Zucchelli, S.

doi:10.1088/1742-6596/2156/1/012228

CUPID is the next generation experiment which will use scintillatine us an important hint to explain the lack of antimatter in the universe. This ambitious search needs a detector with unique characteristics such as an extremely low background level and an excellent energy resolution. CUPID is now in advanced R&D state to optimize the detector design in order to completely exploit the potentialities of scintillating cryogenic calorimeters. In the following I will describe the test performed at the LNGS (Laboratori Nazionali del Gran Sasso) of a single module of the future CUPID detector. In this contribution we present the performance obtained with a novel assembly concept, proving that it matches the requirements for CUPID.g cryogenic calorimeters to search for the neutrinoless double Œ≤ decay. This unobserved process would shed light on the nature of the neutrino, which up to our knowledge could be a Majorana or a Dirac particle, and would giv