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Toponium Found By CMS!

The highest-mass subnuclear particle ever observed used to the the top quark. Measured for the...

The Problem With Peer Review

In a world where misinformation, voluntary or accidental, reigns supreme; in a world where lies...

Interna

In the past few years my activities on this site - but I would say more in general, as the same...

The Probability Density Function: A Known Unknown

Perhaps the most important thing to get right from the start, in most statistical problems, is...

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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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Explaining The Higgs At TEDx

Explaining The Higgs At TEDx

Sep 15 2011 | comment(s)

In two weeks I will be talking at TEDx Flanders, in the magnificent theatre of the Flemish Opera of Antwerp, Belgium. I can't wait, of course, and I have prepared a presentation which is hopefully going to be digestible, but I would hope enjoyable, for the thousand total outsiders who will listen to it in-between a couple dozen other extremely interesting performances and talks. The program is indeed quite diverse and exciting, and the event will last the full day of Saturday, Sept. 24th.
Farewell To The Climber

Farewell To The Climber

Sep 14 2011 | comment(s)

Walter Bonatti died yesterday at 81 years of age. One of Italy's greatest "old style" climbers, Bonatti is especially famous for the first ascent to the K2, the extremely hard to climb, 8611-meter-tall mountain in the Karakorum.
Shaking Some Preconceptions In Statistics

Shaking Some Preconceptions In Statistics

Sep 13 2011 | comment(s)

I enjoyed a lot reading a "discussion" prepared by Maury Goodman on the value of "confidence level", discovery thresholds, and what physicists believe or not. If you are a HEP physicist and you want to widen your horizons on the value of statistical claims in experimental results, you are bound to read it. But you might find it thought-provoking and enlightening even if you are a layman, provided you can use three neurons in a row.

A few random excerpts should convince you to read the whole piece:

Manjib:  No reasonable high energy physics will believe a two sigma effect.

Guess The Plot 8

Guess The Plot 8

Sep 06 2011 | comment(s)

The diffusion of advanced graphical tools that we have witnessed in the course of the last two decades has caused a corresponding evolution in the way physicists display their data. True, there still exist pockets of resistence here and there; but these are usually due to old farts who are unwilling to learn the new tricks. To them the old cynical sentence by Max Planck unfortunately applies, and it can be paraphrased as follows:

"A new data display tool does not triumph by convincing its opponents and making them use it, but rather because its opponents eventually die, and a new generation grows up that is familiar with it."
Plot Of The Week - Let There Be Muons

Plot Of The Week - Let There Be Muons

Sep 05 2011 | comment(s)

A hadron collider is a really nice toy to play with. Sometimes when I look at all those scientists busying themselves with the design, the construction, and the operation of the Large Hadron Collider and its experiments, as well as the analysis of the produced data, all I see are kids who play with their toys - bigger toys, as big as possible in fact, because their craving is always growing and cannot be satiated.

I of course see myself that way, too. To me my job is a game -well, I see my life that way too!  But I am divagating into philosophical observations which deserve another place to be discussed. Instead, here I want to show you why I think these detectors are marvelous toys. Give a look at the graph below, courtesy ATLAS.

Taming The Look-Elsewhere Effect

Taming The Look-Elsewhere Effect

Sep 01 2011 | comment(s)

Note: I have discussed today's topic in one of my best articles here some time ago, and I also gave even more technical insight in another piece. I decided to revisit the topic once more under the stimulus of a online HEP magazine, which is going to feature a text of mine soon. They do not care if I use the same text here too, so you get to read it here first.