- The LHC has now finished the first part of its physics run at 13 TeV, with intensity ramping up more slowly than hoped. Total luminosity/experiment so far is about .1 inverse fb (see here), about a tenth of some earlier projections (see here), not enough for any likely new physics results this summer (see here).
According to the latest schedule physics will begin again the second week of August, with beam intensity increasing during the month. Most data-taking is planned for September and October, with a target of 10 inverse fb.
- Yoichiro Nambu died recently, at the age of 94. He was one of the most influential figures in theoretical physics, for his work on many topics, but especially on spontaneous symmetry breaking in quantum field theory. Unfortunately I never got to meet him, it sounds like he was one of the nicest people in the field. There are lots of stories now out about him and his work, I especially liked this one from one of his students.
- Massimo Pigliucci’s Scientia Salon project now has a book of essays out, with the title Scientistic Chronicles.
- There’s a wonderful article out by Rick Jardine on Grothendieck’s great work on homological algebra, known to mathematicians as “the Tohoku paper”. It was written while Grothendieck was in Kansas, and immediately had a huge influence on the subject. Jardine explains not only the background of the article and what’s in it, but some of the later developments that have come out of it.
Update: Via David Goss, news that the FBI file for Paul Erdos is now available.