Neutrino-less Double Beta Decay of 48Ca studied by CaF2Eu Scintillators - Nuclear ExperimentReportar como inadecuado




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Abstract: We searched for the neutrino-less double beta decay0nbb of 48Ca by usingCaF2Eu scintillators. Analysis of their pulse shapes was effective to reducebackgrounds. No events are observed in the Q-value region for the data of 3394kg days. It gives a lower limit 90% confidence level of T > 2.7 x 10^22 yearfor the half life of 0nbb of 48Ca. Combined with our previous data for 1553 kgdays, we obtained more stringent limit of T > 5.8 x 10^22 year.



Autor: S.Umehara, T.Kishimoto, I.Ogawa, R.Hazama, H.Miyawaki, S.Yoshida, K.Matsuoka, K.Kishimoto, A.Katsuki, H.Sakai, D.Yokoyama, K.Muka

Fuente: https://arxiv.org/



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