University of Minnesota
School of Physics & Astronomy
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Kenneth Heller

Observation of Tau Neutrino Interactions
DONUT Collaboration (K. Kodama et al.) Minnesota authors: D. Ciampa, C. Erickson, M. Graham, Kenneth J. Heller, R. Rusack, R. Schwienhorst, J. Sielaff, J. Trammell, J. Wilcox, Physical Review Letters


The DONUT experiment has analyzed 203 neutrino interactions recorded in nuclear emulsion targets. A decay search has found evidence of four tau neutrino interactions with an estimated background of 0.34 events. This number is consistent with the Standard Model expectation.