I read from various friends and colleagues on Facebook that Prof Raj K Gupta of Panjab University, Chandigarrh, has died. I have read several touching stories about him on Facebook from physicists who knew him and worked closely with him over the years, and it is clear that he had a strong and positive impact on many younger physicists across India.
I worked with him (long-distance) via a collaborator, Suresh Patra, who came to Surrey for several month to work on giant resonances with me. I then got involved a bit in a project on clustering and cluster radioactivity that Suresh worked on with Prof Gupta, it being the latter's specialty. In the end, I published a few papers as co-author with Prof Gupta, as part of this collaboration, though I did not meet him until after this time, during a conference visit to New Delhi. My research interests have evolved since that time, partly into heavy-ion fusion reactions, where I see his name regularly in publications about ioi-ion potentials in which he developed some important results. Judging by those Facebook posts his scientific and personal legacy will both continue after his death.
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