Double beta decay of 48Ca studied by CaF2(Eu) scintillators

被引：4

作者：

Umehara, S. ^{[1
]}

Kishimoto, T. ^{[1
]}

Ogawa, I. ^{[1
]}

Hazama, R. ^{[2
]}

Miyawaki, H. ^{[1
]}

Yoshida, S. ^{[1
]}

Matsuoka, K. ^{[1
]}

Kishimoto, K. ^{[1
]}

Katsuki, A. ^{[1
]}

Sakai, H. ^{[1
]}

Yokoyama, D. ^{[1
]}

Mukaida, K. ^{[1
]}

Tomii, S. ^{[1
]}

Tatewaki, Y. ^{[1
]}

Kobayashi, T. ^{[1
]}

Yanagisawa, A. ^{[1
]}

机构：

[1] Osaka Univ, Grad Sch Sci, Osaka 5600043, Japan

[2] Hiroshima Univ, Grad Sch Engn, Hiroshima 7398527, Japan

来源：

TAUP2007: TENTH INTERNATIONAL CONFERENCE ON TOPICS IN ASTROPARTICLE AND UNDERGROUND PHYSICS | 2008年 / 120卷

关键词：

D O I：

10.1088/1742-6596/120/5/052058

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report the new limit on the half-life of neutrino-less double beta decay(0 nu beta beta) of Ca-48. In order to achieve the background free measurement, measurement of pulse shape was essential. We have observed no event in the Q(beta beta)-value region. We set the new limit on 0 nu beta beta half-life as T-1/2(0 nu beta beta) > 4.0 x 10(22) year.

引用

页数：3

共 50 条

[1] Neutrino-less double-β decay of 48Ca studied by CaF2(Eu) scintillators
Umehara, S.
Kishimoto, T.
Ogawa, I.
Hazama, R.
Miyawaki, H.
Yoshida, S.
Matsuoka, K.
Kishimoto, K.
Katsuki, A.
Sakai, H.
Yokoyama, D.
Mukaida, K.
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