Scientific Results

Muon-induced backgrounds in the CUORICINO experiment

Year: 2010

Authors: Andreotti E., Arnaboldi C., Avignone III F.T., Balata M., Bandac I., Barucci M., Beeman J.W., Bellini F., Bloxham T., Brofferio C., Bryant A., Bucci C., Canonica L., Capelli S., Carbone L., Carrettoni M., Clemenza M., Cremonesi O., Creswick R.J., Di Domizio S., Dolinski M.J., Ejzak L., Faccini R., Farach H.A., Ferri E., Ferroni F., Fiorini E., Foggetta L., Giachero A., Gironi L., Giuliani A., Gorla P., Guardincerri E., Gutierrez T.D., Haller E.E., Kadel R., Kazkaz K., Kraft S., Kogler L., Kolomensky Y.G., Maiano C., Maruyama R.H., Martinez C., Martinez M., Mizouni L., Morganti S., Nisi S., Nones C., Norman E.B., Nucciotti A., Orio F., Pallavicini M., Palmieri V., Pattavina L., Pavan M., Pedretti M., Pessina G., Pirro S., Previtali E., Risegari L., Rosenfeld C., Rusconi C., Salvioni C., Sangiorgio S., Schaeffer D., Scielzo N.D., Sisti M., Smith A.R., Tomei C., Ventura G., Vignati M.

Autors Affiliation: Dipartimento di Fisica e Matematica dell\’Universit dell\’Insubria, Como I-22100, Italy; Sezione INFN di Milano Bicocca, Milano I-20126, Italy; Dipartimento di Fisica dell\’Universit di Milano, Bicocca I-20126, Italy; Department of Physics and Astronomy, University of South Carolina, Columbia, SC 29208, United States; Laboratori Nazionali Del Gran Sasso, Assergi (L\’Aquila) I-67010, Italy; Dipartimento di Fisica dell\’Universit di Firenze and Sezione INFN di Firenze, Firenze I-50125, Italy; Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States; Dipartimento di Fisica dell\’Universit di Roma la Sapienza, Roma I-00185, Italy; Sezione INFN di Roma, Roma I-00185, Italy; Department of Physics, University of California, Berkeley, CA 94720, United States; Dipartimento di Fisica dell\’Universit di Genova and Sezione INFN di Genova, Genova I-16146, Italy; Lawrence Livermore National Laboratory, Livermore, CA 94550, United States; University of Wisconsin, Madison, WI 53706, United States; California Polytechnic State University, San Luis Obispo, CA 93407, United States; Department of Materials Science and Engineering, University of California, Berkeley, CA 94720, United States; Department of Nuclear Engineering, University of California, Berkeley, CA 94720, United States; Laboratori Nazionali di Legnaro, Legnaro (Padova) I-35020, Italy

Abstract: To better understand the contribution of cosmic ray muons to the CUORICINO background, 10 plastic scintillator detectors were installed at the CUORICINO site and operated during the final 3 months of the experiment. From these measurements, an upper limit of 0.0021 counts/(keV kg yr) (95% CL) was obtained on the cosmic ray-induced background in the neutrinoless double beta decay region of interest. The measurements were also compared to Geant4 simulations.

Journal/Review: ASTROPARTICLE PHYSICS

Volume: 34 (1)      Pages from: 18  to: 24

More Information: This work was supported by the US Department of Energy under contract numbers DE-AC52-07NA27344 at LLNL and DE-AC02-05CH11231 at LBNL, and by the INFN of Italy. We also thank Dr. Joel Rynes of the US Department of Homeland Security, José Angel Villar of the Universidad de Zaragoza, and Pierre Lecomte from Eidgenossische Tech. Hochschule Zürich (ETHZ), Switzerland for the loan of plastic scintillator detectors used in the measurements reported here.
KeyWords: Cosmic-ray muons; CUORICINO; Double beta decay; GEANT4 simulation; Plastic scintillator detector; Region of interest; Upper limits, Cosmology, Cosmic rays
DOI: 10.1016/j.astropartphys.2010.04.004

Citations: 23
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