A. Knecht, Z. T. Alexander, Y. Bagdasarova, T. M. Cope, B. G. Delbridge, X. Flechard, A. Garcia, R. Hong, E. Lienard, P. Mueller, O. Naviliat-Cuncic, A. S. C. Palmer, R. G. H. Robertson, D. W. Storm, H. E. Swanson, S. Utsuno, W. Williams, C. Wrede, D. W. Zumwalt
The 6He nucleus is an ideal candidate to study the weak interaction. To this end we have built a high-intensity source of 6He delivering ~10^10 atoms/s to experiments. Taking full advantage of that available intensity we have performed a high-precision measurement of the 6He half-life that directly probes the axial part of the nuclear Hamiltonian. Currently, we are preparing a measurement of the beta-neutrino angular correlation in 6He beta decay that will allow to search for new physics beyond the Standard Model in the form of tensor currents.
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http://arxiv.org/abs/1208.6433
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