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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...

Tracking Particles With Neuromorphic Computing

At the IV Workshop in Valencia a student from my group, Emanuele Coradin, presented the results...

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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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Silvio on the Wrong Side of the Dildo

Silvio on the Wrong Side of the Dildo

Oct 07 2009 | comment(s)

This just in: Berlusconi is not above the law. In a reassuring sentence the judges of the Italian "Consulta" of the constitutional court have ruled today that the "Lodo Alfano", a law strongly wanted by Berlusconi himself, is in conflict with the Italian Constitution where the latter says that citizens are equal in their rights and for the Law. 
CDF Kisses Another New Physics Effect Bye-Bye

CDF Kisses Another New Physics Effect Bye-Bye

Oct 06 2009 | comment(s)

Do you remember the "e-e-gamma-gamma-met"  event ? I am sure you do not. It is an incredibly striking event that appeared toward the end of the Tevatron Run I in the CDF data. One event that was so incredibly striking, so impossible to produce through standard model processes, that many in my experiment felt sure that it was going to be the portal through which we would enter the realm of Supersymmetry, or other fancy new physics scenarios.
The Say of the Week - Martin Perl on his discovery

The Say of the Week - Martin Perl on his discovery

Oct 05 2009 | comment(s)

"An illustration of the confusion about the tau is provided by two editions of a popular book on particle physics by Nigel calder entitled The Key to the Universe. In the first edition Calder wrote:

Martin Perl and his colleagues detected peculiar events occurring in SPEAR. From the scene of collision an electron and a heavy electron (the well-known muon) carrying opposite electric charges were ejected at the same moment without any other detectable particles coming out. No conventional process, involving conventional particles, could account for such events.
You, A Bayesian

You, A Bayesian

Oct 02 2009 | comment(s)

Everyday use of a mathematical concept

The concept of probability is not alien to even the least mathematically versed among us: even those who do not remember the basic math they had in primary schools use it currently in their daily reasoning. I find the liberal use of the word "probability" (and derivates) in common language interesting, for two reasons. One, because the word has in fact a very definite mathematical connotation. And two, because the word is often used to discuss the knowledge of a system's evolution in time without a clear notion of which, among either of two strikingly different sources, is the cause of our partial or total ignorance.
Physicist by nature, Statistician by election

Physicist by nature, Statistician by election

Sep 29 2009 | comment(s)

Well, it is now official, so I thought I would let my blog know about it too: I am honored to announce that I was chosen to serve in the CMS Statistics Committee. Along with eight highly distinguished colleagues, I will work for at least the next two years in a group that will take care of ensuring the accuracy of all results that our 2500-strong collaboration will produce.

CMS is one of the two high-energy physics experiments designed to study the proton-proton collisions delivered by the LHC, the Large Hadron Collider at CERN in Geneva, Switzerland. The machine is expected to start data-taking in November this year.
Mathematics is all around us

Mathematics is all around us

Sep 27 2009 | comment(s)

Mathematical functions are all around us. We may not realize it but they are there! Check it out on the pictures below.

A blade of light, selected by the venetian blinds of my living room window, draws a curved, complicated, multiple-valued function on the semi-transparent orange curtains. Maybe the curve below is even more fascinating: