Measurement of the background in the NEMO 3 double beta decay experiment
nucl-ex
/ Authors
NEMO Collaboration, J. Argyriades, R. Arnold, C. Augier, J. Baker, A. S. Barabash, M. Bongrand, G. Broudin-Bay, V. B. Brudanin, A. J. Caffrey
and 55 more authors
A. Chapon, E. Chauveau, Z. Daraktchieva, D. Durand, V. G. Egorov, N. Fatemi-Ghomi, R. Flack, A. Freshville, B. Guillon, Ph. Hubert, S. Jullian, M. Kauer, S. King, O. I. Kochetov, S. I. Konovalov, V. E. Kovalenko, D. Lalanne, K. Lang, Y. Lemi`ere, G. Lutter, F. Mamedov, Ch. Marquet, J. Martin-Albo, F. Mauger
/ Abstract
In the double beta decay experiment NEMO~3 a precise knowledge of the background in the signal region is of outstanding importance. This article presents the methods used in NEMO~3 to evaluate the backgrounds resulting from most if not all possible origins. It also illustrates the power of the combined tracking-calorimetry technique used in the experiment.