‘The most perfect microscopic structures in the known universe’ – that is the exquisite description of sub-nuclear scattering amplitudes given by theorist Lance Dixon, based at the Stanford Linear Accelerator in California. Having made his name as a string theorist in the 1980s, Dixon became one of the leading pioneers in the field of scattering-amplitudes, developing a host of ingenious ideas and techniques. In this thoughtful interview, he describes why he switched his research focus, the fascination and importance of the amplitudes, and the prospects for the subject’s future.

This is one of a number of interviews given by world-class experts to Graham on the themes he explores in his new book The Universe Speaks in Numbers. 

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