(origin is Latin "Hassias" meaning "Hess", the German state.)Discovered by Peter Armbruster, Gottfried Munzenber and co-workers at GSI in Darmstadt,Germany in 1984.
Sources
'The mathematician's patterns, like the painter's or the poets, must be beautiful; the ideas, like the colours or the words, must fit together in a harmonious way. Beauty is the first test: there is no permanent place in the world for ugly mathematics.'