Another Collider Physics Source

Just a short entry to mention that the blog of my colleague Michael Schmitt, a professor at Northwestern...

New CMS Results

The Large Hadron Collider at the CERN laboratories in Geneva is currently in shutdown, finalizing...

The Quote Of The Week - Shocked And Disappointed

"Two recent results from other experiments add to the excitement of Run II. The results from Brookhaven's...

ECFA Workshop: Planning For The High Luminosity LHC

I am spending a few days in Aix Les Bains, a pleasant lakeside resort in the French southwest,...

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Tommaso DorigoRSS Feed of this column.

I am an experimental particle physicist working with the CMS experiment at CERN. In my spare time I play chess, abuse the piano, and aim my dobson telescope at faint galaxies.... Read More »

I was delighted to receive news this afternoon of three new interesting results produced by the DZERO collaboration in the analysis of Quantum Chromodynamics (QCD) processes.

QCD, the theory of strong interactions between quarks and gluons, is the "boring" part of the physics of high-energy hadron-hadron collisions. It used to be more more exciting twenty years ago, when the theoretical calculations were not as refined as they are now, and there was still a lot to understand in the physics of strong interactions between quarks and gluons. But nowadays, things are much more clear.
How do we fix science journalism ? Simple: we don't. We let it sink, and be reborn in a different form.

It is rather utopic to insist that in a world of changing means of communications, a world where printed matter is losing ground to the advantage of electronic media, the diffusion of scientific information may or shall stay the same.
The CDF collaboration, which runs one of the two proton-antiproton collider experiments at the Fermi National Accelerator Laboratory since the early eighties, has published hundreds of scienticif papers in the course of its 25 years of operation. I believe the number has abundantly surpassed the half-thousand mark, but I am unaware of its exact entity.
On March 8th, international women day, the CMS experiment at CERN will be run almost entirely by women. 32 of the 34 shifts needed to run our experiment will be covered by women scientists of our Collaboration - which counts 588 women overall.

I think this is great news and a very good idea. 588 women scientists are quite an impressive force! And believe me, most of them really do kick ass!!
"Wise men speak because they have something to say; fools because they have to say something."

Yesterday somebody asked me here if I could explain how does a muon really decide when and how to decay. I tried to answer this question succintly in the thread, and later realized that my answer, although not perfectly correct in the physics, was actually not devoid of some didactic power. So I decided to recycle it and make it the subject of an independent post.

Before I come to the discussion of how, exactly, does a muon choose when and how to decay, however, let me make a few points about this fascinating particle, by comparing its phenomenology to that of the electron.