Author/Authors :
W. Trinder، نويسنده , , R. Anne، نويسنده , , M. Lewitowicz، نويسنده , , M.G. Saint Laurent، نويسنده , , C. Donzaud، نويسنده , , D. Guillemaud-Mueller، نويسنده , , S. Leenhardt، نويسنده , , A.C. Mueller، نويسنده , , F. Pougheon، نويسنده , , O. Sorlin، نويسنده , , M. Bhattacharya، نويسنده , , A. Garc?a، نويسنده , , N.I. Kaloskamis، نويسنده , , E.G. Adelberger، نويسنده , , H.E. Swanson، نويسنده ,
Abstract :
40Ti β decay was studied at GANIL using the LISE3 spectrometer. A decay scheme was deduced from twenty-one observed β-delayed proton transitions feeding the ground and first excited states of 39Ca. The 40Ti half-life was found to be 51.7(6) ms. These results imply that the ICARUS 40Ar detector has an effective absorption cross section for 8B solar neutrinos of 14.5(4) × 10−43 cm2; 73% of the total cross section arises from Gamow-Teller transitions that were neglected in early estimates of the ICARUS efficiency.
