1. Tri Alpha Energy, Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688, USA
2. Department of Physics and Astronomy, University of California at Los Angeles, Los Angeles, California 90095-1547, USA
3. General Atomic, P.O. Box 85608, San Diego, California 92186-5608, USA
4. Department of Physics, University of Pisa, Largo B. Pontecorvo 3, 56127 Pisa, Italy
5. Budker Institute of Nuclear Physics, 11 Lavrentyev Avenue, 630090 Novosibirsk, Russia