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Holiday Chess Riddle

During Christmas holidays I tend to indulge in online chess playing a bit too much, wasting several...

Why Measure The Top Quark Production Cross Section?

As part of my self-celebrations for XX years of blogging activities, I am reposting here (very)...

The Buried Lottery

As part of my self-celebrations for having survived 20 years of blogging (the anniversary was a...

Twenty Years Blogging

Twenty years ago today I got access for the first time to the interface that allowed me to publish...

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Tommaso DorigoRSS Feed of this column.

Tommaso Dorigo is an experimental particle physicist, who works for the INFN at the University of Padova, and collaborates with the CMS and the SWGO experiments. He is the president of the Read More »

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The XVIth international chess tournament "Citta' di Padova" ended last Sunday with the victory of GM Kiril Georgiev, who got 7 points out of 9 games. The tournament saw the participation of 63 players from 13 countries, with a total of 11 grandmasters and 13 international masters, plus nine other Fide titled players.

I participated in the event and scored a good 4.5/9, winning four games and losing four. Below I am showing some salient points from a few of my games.
I met George Zweig at a conference in Crete last Summer. He impressed me with the multidisciplinarity of his interests and his quite entertaining career. He has a degree in mathematics, and did quite a bit of experimental physics work before finally turning to theoretical physics; but he did not stay there for long...

But I do not want to summarize more of the interesting life of Zweig, since there is now an interview with George on the online newsletter of the physics department of CERN, which is quite detailed and fascinating, and deserves a read. Enjoy!
"The senior signs the paper, the post-doc thinks, and the grad student executes"

F.S., explaining how the typical nucleus of analysis group in HEP works.

In 1989 the CDF experiment was sitting on its first precious bounty of proton-antiproton collisions, delivered by the Tevatron collider at the unprecedented energy of 1.8 TeV. One of the first measurements that was produced was the measurement of the mass of the Z boson, which was at the time known with scarce precision by the analysis of a handful of candidates produced by the CERN SppS collider, at a third of the Tevatron energy. 
No, this is not an article about top models. Rather, the subject of discussion are models that predict the existence of heavy partners of the top quark.
"During the years 1962 to 1964 a debate developed about whether the Goldstone theorem could be evaded. Anderson pointed out that in a superconductor the Goldstone mode becomes a massive plasmon mode due to its electromagnetic interaction, and that this mode is just the longitudinal partner of transversely polarized electromagnetic modes, which also are massive (the Meissner effect!). Ths was the first description of what has become known as the Higgs mechanism.