Thank You Guido

It is with great sadness that I heard (reading it here first) about the passing away of Guido Altarelli...

Researchers' Night 2015

Last Friday I was invited by the University of Padova to talk about particle physics to the general...

One Dollar On 5.3 TeV

This is just a short post to mention one thing I recently learned from a colleague - the ATLAS...

Statistics Lectures For Physicists In Traunkirchen

The challenge of providing Ph.D. students in Physics with an overview of statistical methods and...

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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 »

"La belle Hélène" is a beautiful operetta by Jacques Offenbach. Now for the first time it has been translated and performed in Greek in Athens, by a group of very talented singers under the artistic direction of Panagiotis Adam. I saw "Η Ωράια Ελένη" yesterday at the Olvio theatre in Athens, and I enjoyed it a whole lot. 

The story unfolds as Eleni, the wife of Sparta's king Menelaos, lives in a world where men only concern with warfare and neglect love. As Paris, the prince of Troy, arrives disguised as a sheperd, and catches her attention. Eleni's flirt with Paris is discovered by Menelaos, but the two manage to escape together.

I am presently in Athens for a few days, to give a seminar and meet the local group of CMS physicists. So I took the chance to visit yesterday evening the Astrophysics department of the University of Athens, where at the top floor is housed a nice 40cm Cassegrain telescope (see picture below). There I joined a small crowd which professor Kosmas Gazeas entertained with views of Jupiter, the Moon, Venus, and a few other celestial targets. I need to thank my friend Nadia, a fellow physicist and amateur astronomer, for inviting us to the event.

I received from Ravi Kuchimanchi, the author of a paper to be published in Phys. Rev. D, the following summary, and am happy to share it here. The paper is available in the arxiv.
Are laws of nature left-right symmetric? 

Besides being a giant triumph of theoretical physics and the definitive seal on the correctness of the Standard Model -at least at the energies at which we are capable of investigating particle physics nowadays-, the 2012 discovery of the Higgs boson by the CMS and ATLAS collaborations opens the way to new searches of new physics.

The Higgs boson is one more particle we know how to identify now, so we can now focus on new exotic phenomena that might produce Higgs bosons in the final state, and entertain ourselves in their search.
"The era of the atom" is a new book by Piero Martin and Alessandra Viola - for now the book is only printed in Italian (by Il Mulino), but I hope it will soon be translated in English.
I used to post on this blog very abstruse graphs from time to time, asking readers to guess what they represented. I don't know why I stopped it - it is fun. So here is a very colourful graph for you today. You are asked to guess what it represents. 

I am reluctant to provide any hints, as I do not want to cripple your fantasy. But if you really want to try and guess something close to the truth, this graph represents a slice of a multi-dimensional space, and the information in the lines and in the coloured map is not directly related. Have a shot in the comments thread! (One further hint: you stand no chance of figuring this out).