Assistant professor Roger Wendell has been awarded the Young Scientist
Award of the Physical Society of Japan for contributions to "The first observation of evidence for the appearance of oscillation-induced atmospheric tau neutrinos." The result of this research have been published in 'Physical Review Letter 110, 181802 (2013)' under the title "Evidence for the appearance of atmospheric tau neutrinos in Super-Kamiokande."
Though neutrino oscillations* were first discovered via the disappearance of atmospheric muon neutrino, this work is the first observation of the tau neutrino that they are thought to oscillate (change) into and thereby lays to rest the final piece of the long standing atmospheric neutrino problem. Further, as an observation of a neutrino after it has undergone oscillations, it has paved the way for the era of neutrino appearance measurements.
Professor Wendell will give a lecture describing these results at the 70th meeting of the Physical Society of Japan, to be held at Waseda University in March 2015.
*Neutrino oscillations: A phenomenon in which a neutrino of one type change into another during flight.