Insights and puzzles in particle physics
arXiv:1410.4000 · doi:10.1142/S0217751X15300100
Abstract
I briefly review the conceptual developments that led to the Standard Model and discuss some of its remarkable qualitative features. On the way, I draw attention to several puzzling aspects that are beyond the reach of our present understanding of the basic laws of physics.
Contribution to 'Fifty Years of Quarks', H. Fritzsch and M. Gell-Mann, eds. (World Scientific, Singapore)