Neutrino mass: a positive view.

From: Science News | Date: April 18, 1987| Author: | Copyright information

Neutrino mass: A positive view

Consideration of the evidence fromsupernova 1987A now leads a number of physicists to conclude that neutrinos probably do have a rest mass, in contrast to previous work that interprets the evidence negatively. One group--Hong-Yee Chiu, Yoji Kondo and Kwing L. Chan of the NASA Goddard Space Flight Center in Greenbelt, Md.--finds a value of about 3.6 electron volts (eV) for a possible neutrino mass. Ramanath Cowsik of Washington University in St. Louis and a group at the Max Planck Institute in West Germany both say they find two values, 4 eV and ...

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