Author/Authors :
Hwang، نويسنده , , M.J. and Kwon، نويسنده , , Y.J. and Kim، نويسنده , , H.J. and Kwak، نويسنده , , J.W. and Kim، نويسنده , , S.C and Kim، نويسنده , , S.K and Kim، نويسنده , , T.Y and Kim، نويسنده , , S.Y. and Lee، نويسنده , , H.S and Lee، نويسنده , , M.J. and Myung، نويسنده , , S.S. and Kim، نويسنده , , Y.D. and Lee، نويسنده , , J.I. and Kang، نويسنده , , W.G. and Hahn، نويسنده , , I.S. and Lee، نويسنده , , M.H.، نويسنده ,
Abstract :
A search for the neutrinoless double-beta decay of 124 Sn was carried out using the tin-loaded liquid scintillator for an active source-detector technique. Tin (32.6%) in weight was successfully loaded into the liquid scintillator, and light output was as high as 57% of the unloaded liquid scintillator. A tin-loaded liquid scintillator with 1.1 ℓ volume was installed at the 700 m underground laboratory in YangYang, and data were taken for 5285 h. No evidence for the 0 ν β β decay was found and a lower limit on the 124 Sn half-life was obtained to be 2.0 × 10 19 year with 90% C.L. The new limit represents a significant improvement with respect to those previously available for 124 Sn .
Keywords :
124 Sn , Double-beta decay , Neutrino mass , Tin-loaded liquid scintillator
