Facts: - employer: harvard university , stanford linear accelerator center - caption: helen quinn at harvard university - occupation: particle physicist - birth date: 19 may 1943 - name: helen quinn - nationality: american - image: helenquinn1.jpg - birth place: melbourne , australia - boards: board -lrb- of nas -rrb- on science education of the national research council - alma mater: stanford at desy university , ph.d. , 1967 , postdoctoral work Based on these bullet points, write a short biography describing the life of helen quinn .
The answer to this question is:
helen rhoda quinn -lrb- born 19 may 1943 in melbourne -rrb- is an australian-born particle physicist whose contributions to the search for a unified theory for the three types of particle interactions -lrb- strong , electromagnetic , and weak -rrb- were recognized by several honors including the dirac medal of the international center for theoretical physics .