Neutrino-less Double Beta Decay of 48Ca studied by CaF2(Eu) Scintillators

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dc.creatorUmehara, S.
dc.creatorKishimoto, T.
dc.creatorOgawa, I.
dc.creatorHazama, R.
dc.creatorMiyawaki, H.
dc.creatorYoshida, S.
dc.creatorMatsuoka, K.
dc.creatorKishimoto, K.
dc.creatorKatsuki, A.
dc.creatorSakai, H.
dc.creatorYokoyama, D.
dc.creatorMukaida, K.
dc.creatorTomii, S.
dc.creatorTatewaki, Y.
dc.creatorKobayashi, T.
dc.creatorYanagisawa, A.
dc.date2008-10-27
dc.date.accessioned2026-07-07T12:15:54Z
dc.date.available2026-07-07T12:15:54Z
dc.descriptionWe searched for the neutrino-less double beta decay(0nbb) of 48Ca by using CaF2(Eu) scintillators. Analysis of their pulse shapes was effective to reduce backgrounds. No events are observed in the Q-value region for the data of 3394 kg days. It gives a lower limit (90% confidence level) of T > 2.7 x 10^22 year for the half life of 0nbb of 48Ca. Combined with our previous data for 1553 kg days, we obtained more stringent limit of T > 5.8 x 10^22 year.
dc.descriptionsubmitted to PRC
dc.identifierhttps://arxiv.org/abs/0810.4746
dc.identifierhttp://arxiv.org/abs/0810.4746
dc.identifierPhys.Rev.C78:058501,2008
dc.identifierdoi:10.1103/PhysRevC.78.058501
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/211634
dc.subjectNuclear Experiment
dc.titleNeutrino-less Double Beta Decay of 48Ca studied by CaF2(Eu) Scintillators
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