A. Baha Balantekin
June 20 - July 22, 2005
The science that can be done best deep underground is very broad. It includes nucleon stability, particle dark matter, very long baseline studies of neutrino neutrino properties (the leptonic mixing matrix and possible CP violation in the lepton sector), astrophysics/cosmic rays (atmospheric neutrino oscillations, supernova neutrino detection) double beta decay, solar neutrinos, and low-energy accelerators for precision nuclear astrophysics cross sections. There is also broad interest in applications of low-background detection in areas ranging from fundamental and applied physics (synthesis of pure materials) to national security (test ban verification by isotope analysis).
The proposed program will involve both theorists and experimentalists interested in physics underground. The intent will be to allow this community to further define its science goals and how those goals might influence the design and operations of a deep US laboratory. The program will focus on topics such as the synergy between accelerator and astrophysical long-baseline tests of the neutrino mass; next generation particle dark matter searches; the possibility of precision long-baseline neutrino oscillation experiments to measure CP violation; the construction of very large proton decay detectors, and whether those detectors could also be exploited to measure the neutrino "light curves" of galactic supernovae; the need for low-level counting facilities for generic detector development; and the possibility of a low-energy underground accelerator for measuring nuclear astrophysics cross sections in the Gamow peak by inverse kinematics.