Search for fractionally charged particles with CUORE

Adams, D.  q.; Alduino, C.; Alfonso, K.; Avignone, F.  t.; Azzolini, O.; Bari, G.; Bellini, F.; Benato, G.; Beretta, M.; Biassoni, M.; Branca, A.; Brofferio, C.; Bucci, C.; Camilleri, J.; Caminata, A.; Campani, A.; Cao, J.; Capelli, S.; Capelli, C.; Cappelli, L.; Cardani, L.; Carniti, P.; Casali, N.; Celi, E.; Chiesa, D.; Clemenza, M.; Copello, S.; Cremonesi, O.; Creswick, R.  j.; D'Addabbo, A.; Dafinei, I.; Del Corso, F.; Dell'Oro, S.; Di Domizio, S.; Di Lorenzo, S.; Dixon, T.; Dompè, V.; Fang, D.  q.; Fantini, G.; Faverzani, M.; Ferri, E.; Ferroni, F.; Fiorini, E.; Franceschi, M.  a.; Freedman, S.  j.; S.  h., Fu; Fujikawa, B.  k.; Ghislandi, S.; Giachero, A.; Girola, M.; Gironi, L.; Giuliani, A.; Gorla, P.; Gotti, C.; Guillaumon, P.  v.; Gutierrez, T.  d.; Han, K.; Hansen, E.  v.; Heeger, K.  m.; Helis, D.  l.; Huang, H.  z.; Keppel, G.; Kolomensky, Yu.  g.; Kowalski, R.; Liu, R.; Ma, L.; Y.  g., Ma; Marini, L.; Maruyama, R.  h.; Mayer, D.; Mei, Y.; Moore, M.  n.; Napolitano, T.; Nastasi, M.; Nones, C.; Norman, E.  b.; Nucciotti, A.; Nutini, I.; O'Donnell, T.; Olmi, M.; Oregui, B.  t.; Ouellet, J.  l.; Pagan, S.; Pagliarone, C.  e.; Pagnanini, L.; Pallavicini, M.; Pattavina, L.; Pavan, M.; Pessina, G.; Pettinacci, V.; Pira, C.; Pirro, S.; Pottebaum, E.  g.; Pozzi, S.; Previtali, E.; Puiu, A.; Quitadamo, S.; Ressa, A.; Rosenfeld, C.; Schmidt, B.; Sharma, V.; Singh, V.; Sisti, M.; Speller, D.; Stark, P.; Surukuchi, P.  t.; Taffarello, L.; Tomei, C.; Torres, A.; Torres, J.  a.; Vetter, K.  j.; Vignati, M.; Wagaarachchi, S.  l.; Welliver, B.; Wilson, J.; Wilson, K.; Winslow, L.  a.; Zimmermann, S.; Zucchelli, S.; Null, Null

doi:10.1103/physrevlett.133.241801

The Cryogenic Underground Observatory for Rare Events (CUORE) is a detector array comprised by 988 5 cm × 5 cm × 5 cm TeO2 crystals held below 20 mK, primarily searching for neutrinoless double- beta decay in 130Te. Unprecedented in size among cryogenic calorimetric experiments, CUORE provides a promising setting for the study of exotic throughgoing particles. Using the first tonne year of CUORE’s exposure, we perform a search for hypothesized fractionally charged particles (FCPs), which are wellmotivated by various standard model extensions and would have suppressed interactions with matter. Across the searched range of charges e=24− e=2 no excess of FCP candidate tracks is observed over background, setting leading limits on the underground FCP flux with charges e=24− e=5 at 90% confidence level. Using the low background environment and segmented geometry of CUORE, we establish the sensitivity of tonne-scale subkelvin detectors to diverse signatures of new physics.

Search for fractionally charged particles with CUORE / Adams, D. Q., Alduino, C., Alfonso, K., Avignone, F. T., Azzolini, O., Bari, G., Bellini, F., Benato, G., Beretta, M., Biassoni, M., Branca, A., Brofferio, C., Bucci, C., Camilleri, J., Caminata, A., Campani, A., Cao, J., Capelli, S., Capelli, C., Cappelli, L., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 133:24(2024), pp. 1-8. [10.1103/physrevlett.133.241801]