Martin Perl, the author mentioned in the paper, was a Nobel prize winner and one of the first people I met when I got to SLAC. His office was across the hall fr

Martin Perl, the author mentioned in the paper, was a Nobel prize winner and one of the first people I met when I got to SLAC. His office was across the hall from mine. Unfortunately, Martin passed away this year. He was a very nice, smart, and humble man.