Physics

I read ArXiv regularly. It's not easy because most of the latest publications of physics go there before print. Apart from pedagogical articles (for teaching purposes), all the articles are aimed at other scientists working at the state of art in the ...

Blog Post - Barry Adams - Jan 24 2012 - 7:48pm

Where was I?

The CHIPP 2012 winter school of particle physics is over, and so is the 50th winter meeting on nuclear physics. The two events had three things in common: they were both held in renowned locations for winter sports in the Alps (Engelberg, Switzerland, and ...

Blog Post - Tommaso Dorigo - Jan 28 2012 - 5:55pm

A New CMS Result On Quarkonium Suppression

The CMS Collaboration has just released the results of a deep study of their sample of lead-lead collisions, produced at a center-of-mass energy of 2.76 TeV per nucleon by the Large Hadron Collider. ...

Article - Tommaso Dorigo - Jan 31 2012 - 11:05am

Playing New Gauge Symmetry Games

First I will play the old gauge symmetry game repeated everywhere for EM. I will then teach that old dog a new trick that ends up with the same bone. I will then struggle a little over the lingo to describe what I am interested in, the center of the quate ...

Blog Post - Doug Sweetser - Jan 31 2012 - 8:30pm

Need Statistics Lessons For HEP Data Analysis? Look Here.

Last week I spent a few interesting days in the pleasant winter setting of Engelberg, a mountain location in the Swiss alps. There I attended the CHIPP 2012 winter school, an event organized by Vincenzo Chiochia from University of Zurich and Gabriella Paz ...

Article - Tommaso Dorigo - Feb 11 2012 - 5:20pm

Velocity: Stuff That Just Doesn't Add Up

We are all familiar with velocities. Velocities tell us how positions change with time. Velocities can not be assigned to individual objects, as they describe a relation between pairs of objects. We know this since Galileo Galilei. Yet, in common day langu ...

Article - Johannes Koelman - Feb 1 2012 - 10:28am

Relativity, cosmic rays, cosmology and spinorial space-time (I)

Happy 2012! I had not been writing any post in this blog since last October. Furthermore, my first article was not devoted to my own work of this period discussing the OPERA result on a possible superluminal neutrino. See my articles Comments on the rece ...

Blog Post - Luis Gonzalez-Mes... - Feb 5 2012 - 4:01pm

A Question About Gauge Symmetry and the Interaction Term

I spent the week seeing if I could give the good old college try and find a "way that worked" for the gauge games I have been playing. Nothing panned out. Bummer, I had a blog to write. While collecting crumpled paper, there was an old issue I wa ...

Blog Post - Doug Sweetser - Feb 9 2012 - 10:42pm

ATLAS And CMS Publish 2011 Higgs Results

You have seen it already two months ago, but those were "preliminary" results. Now both CMS and ATLAS have produced full-fledged documents (CMS here, ATLAS here) describing their respective combinations of different Higgs boson searches, using da ...

Article - Tommaso Dorigo - Feb 7 2012 - 7:10pm

Top Quark Production Studied In Detail

A new result by the CMS collaboration has been produced today on top quark physics. For those of you who only get triggered by the search of new particles or new forces, the study of "yesterday's signals", such as top quarks, is boring and u ...

Article - Tommaso Dorigo - Feb 11 2012 - 5:37am