Physics

LHC Higgs Reach In 2011

Two days ago I wrote here about the projected reach of Higgs boson searches of the Tevatron experiments, discussing what can be seen by CDF and D0 if they combine their analyses results, after improving them as is today thought possible to do. The reach wa ...

Article - Tommaso Dorigo - Oct 8 2010 - 3:00pm

Black Hole Duality: Not Noticing Crashing With Light Speed

Today (and the next time in this series on duality), I explain the most interesting insight that I have gotten from string theory about black holes. ...

Article - Sascha Vongehr - May 15 2012 - 9:47am

Tevatron Collider, 25 Years Old Today

On October 13th 1985 the Tevatron collider started operations, producing the first man-made proton-antiproton collisions at 1.6 TeV center-of-mass energy in the core of the CDF detector. 25 years have passed. It is frankly unbelievable that the machine is ...

Blog Post - Tommaso Dorigo - Oct 13 2010 - 2:57pm

LHC Breaks Into 10^32 Territory!

Quite in advance with respect to the stated goals of its 2010 collider program, the Large Hadron Collider has produced yesterday night the instantaneous luminosity of 10^32 cm^-2 s^-1 in the core of the ATLAS and CMS detectors. This is great news for all o ...

Article - Tommaso Dorigo - Oct 14 2010 - 1:19pm

Square Root Of The Universe

Is energy conserved? "Of course it is!" anyone with just a rudimentary knowledge of physics will answer. A more pertinent answer would be: "if you can't show me a working perpetual motion machine, shut up and stop wasting my time!" ...

Article - Johannes Koelman - Oct 16 2010 - 6:51pm

The Say Of The Week

"Since two fermions cannot turn into three fermions, the experimental observation of three-jet events in e+e- annihilation, first accomplished by the TASSO collaboration in June 1979 and confirmed by the other collaborations at PETRA two months later, ...

Blog Post - Tommaso Dorigo - Oct 17 2010 - 6:26am

Energy Is Not Golden Holy Cow Urine

Energy (E) is a useful quantity. It has certain properties and connections with other such measures, like momentum p. E is paired with time t, much like momentum p and distance x are such a pair. This pairing is known from classical mechanics and it shows ...

Article - Sascha Vongehr - Mar 25 2018 - 4:01am

How Wide Is The Top Quark?

As 2010 nears its end, the Tevatron experiments feel the monopoly of top quark physics being taken from their hands, due to the good news on the running of the Large Hadron Collider. The ATLAS and CMS experiments there have started to mine their datasets, ...

Article - Tommaso Dorigo - Oct 19 2010 - 2:47pm

What's Going On Around

Swamped by my course of Subnuclear Gauge Physics, I have little time left to surf the web and keep an eye on what happens in the blogs I usually visit. Nevertheless, today is Saturday and I have allowed myself a short tour. Below is a list of the most inte ...

Blog Post - Tommaso Dorigo - Oct 23 2010 - 12:19pm

Electron Scattering And The Proton Structure

Week number one of my course on Subnuclear Gauge Physics is over. I think that in the first five hours of lesson I have given to my students a reasonable picture of the early experimental attempts and theoretical developments aimed at understanding the str ...

Article - Tommaso Dorigo - Oct 24 2010 - 2:28pm