XXth International Conference on Neutrino Physics and Astrophysics
Y.Zdesenko (Institute for Nuclear Research, Kiev, Ukraine)
Background simulation and evaluation of XMASS experiment for the low
energy solar neutrinos detection
The high sensitivity XMASS project is designed for the low energy
solar neutrinos observation with the help of the liquid Xe
scintillation detector with the 10 t inner fiducial volume (total mass
of 23.3 t). The Monte Carlo simulation (with GEANT and DECAY 4 codes)
evidently shows that p-p solar neutrino flux would be observed with
the help of XMASS set up. At the same time, using 1.6 t inner volume
of the detector filled with the enriched 136-Xe the sensitivity of the
XMASS experiment in terms of the half-life limit for the neutrinoless
2beta decay of 136-Xe is T_1/2 > 10^27 yr, which corresponds to the
neutrino mass constrain < 0.05 eV.
Based on a paper in
Proc. International Workshop on Technique and Application of
Xenon Detectors, December 3-4, 2001, Tokyo, Japan (2002) in press.