CERN Accelerating science

Theory

The NNLO frontier

by C. G. Papadopoulos (NCSR-Demokritos)

70 years ago, in September 1949, Richard Feynman introduced the so-called Feynman diagramms; a representation of various interactions between fundamental particles allowing the calculation of interaction probabilities. Where do we stand today with these calculations? 

Interview with James Peebles

by Panos Charitos

An interview with Jim Peebles, one of the world's foremost cosmologists and an emeritus professor at Princeton University, where since 1984 he was the Albert Einstein Professor of Science. With Robert Dicke he predicted the existence of the cosmic background radiation while he largely contributed to establishing the big bang model and furthering our understanding of the universe.