XAX: a multi-ton, multi-target detection system for dark matter, double beta decay and pp solar neutrinos

Details XAX: a multi-ton, multi-target detection system for dark matter, double beta decay and pp solar neutrinos XAX: a multi-ton, multi-target detection system for dark matter, double beta decay and pp solar neutrinos

2008-08-28

arxiv.org/abs/0808.3968v3

Astronomy and Astrophysics

Astrophysics

16 pages with 17 figures

Scientific paper

10.1016/j.astropartphys.2008.11.

A multi-target detection system XAX, comprising concentric 10 ton targets of 136Xe and 129/131Xe, together with a geometrically similar or larger target of liquid Ar, is described. Each is configured as a two-phase scintillation/ionization TPC detector, enhanced by a full 4pi array of ultra-low radioactivity Quartz Photon Intensifying Detectors (QUPIDs) replacing the conventional photomultipliers for detection of scintillation light. It is shown that background levels in XAX can be reduced to the level required for dark matter particle (WIMP) mass measurement at a 10^-10 pb WIMP-nucleon cross section, with single-event sensitivity below 10^-11 pb. The use of multiple target elements allows for confirmation of the A^2 dependence of a coherent cross section, and the different Xe isotopes provide information on the spin-dependence of the dark matter interaction. The event rates observed by Xe and Ar would modulate annually with opposite phases from each other for WIMP mass >~100 GeV/c^2. The large target mass of 136Xe and high degree of background reduction allow neutrinoless double beta decay to be observed with lifetimes of 10^27-10^28 years, corresponding to the Majorana neutrino mass range 0.01-0.1 eV, the most likely range from observed neutrino mass differences. The use of a 136Xe-depleted 129/131Xe target will also allow measurement of the pp solar neutrino spectrum to a precision of 1-2%.

Affiliated with

Also associated with

No associations

Rating

XAX: a multi-ton, multi-target detection system for dark matter, double beta decay and pp solar neutrinos does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with XAX: a multi-ton, multi-target detection system for dark matter, double beta decay and pp solar neutrinos, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and XAX: a multi-ton, multi-target detection system for dark matter, double beta decay and pp solar neutrinos will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-327707