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Living At The Polar Circle

Since 2022, when I got invited for a keynote talk at a Deep Learning school, I have been visiting...

Conferences Good And Bad, In A Profit-Driven Society

Nowadays researchers and scholars of all ages and specialization find themselves struggling with...

USERN: 10 Years Of Non-Profit Action Supporting Science Education And Research

The 10th congress of the USERN organization was held on November 8-10 in Campinas, Brazil. Some...

Baby Steps In The Reinforcement Learning World

I am moving some baby steps in the direction of Reinforcement Learning (RL) these days. In machine...

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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 CMS Momentum Scale From J/Psi Decays

The CMS Momentum Scale From J/Psi Decays

Jul 29 2010 | comment(s)

While the focus of the international conference in high-energy physics in Paris last week has been on the search for new physics and the precise measurement of standard model quantities, I will offer to you today something more technical, but in no way less physics-rich; it was presented in Paris, but with the many parallel sessions it may have well gone unnoticed... What I wish to explain to you is the procedure by means of which the CMS experiments calibrates the scale and resolution of its charged particle momentum measurement.
Plot Of The Week: A Lovely Dimuon Mass Spectrum

Plot Of The Week: A Lovely Dimuon Mass Spectrum

Jul 27 2010 | comment(s)

While everybody is busy discussing the latest Tevatron results on the Higgs boson searches -is that the light-mass excess the internet was abuzz, is it consistent with a signal as we expected it, how long will it take to confirm it is not a fluke, etcetera, etcetera, etcetera- I think I have a different plot with which to enthuse you.

If you do not like the figure below, courtesy CMS Collaboration 2010, you are kindly requested to leave this blog and spend your time reading something else than fundamental physics. I do not know what will ever make you believe particle physics is beautiful, if not what is shown here.


W And Z Boson Physics Results From CMS

W And Z Boson Physics Results From CMS

Jul 26 2010 | comment(s)

The parallel sessions at the international conference on High-Energy Physics in Paris are over, and it is time for a summary of results. Of course if you are following the conference you will get it from the summary talks, but if you prefer some armchair, remote attendance of the conference, I have collected for you a few meaningful plots.

Here I wish to assemble some of the electroweak physics results produced by CMS in time for ICHEP. The CMS experiment has shown results that use up to 280 inverse nanobarns of proton-proton collisions, but for electroweak measurements -those involving W and Z signals, to be clear- the statistics used is up to 200 inverse nanobarns of well-understood data.
Guest Post: Vladimir Khachatryan, The Higgs Mass From The Four-Colour Theorem

Guest Post: Vladimir Khachatryan, The Higgs Mass From The Four-Colour Theorem

Jul 25 2010 | comment(s)

Ashay Dharwadker
is the founder and director of the Institute of Mathematics, Gurgaon, India.
He is interested in fundamental research in mathematics, particularly in algebra, topology, graph theory and their applications to computer science and high energy physics. Based upon the new proof of the four color theorem, he has developed a grand unified theory for the Standard Model and gravitation. In particular, this leads to a mathematically precise prediction of the Higgs boson mass.
Just a Note - Lazy with comments

Just a Note - Lazy with comments

Jul 24 2010 | comment(s)

Just a note here because I figured it is not clear - I am on vacation these days and, while I continue to post at a regular frequency, I am much more erratic than usual with answering comments in the threads. I would like this to be clear, because I usually do make a point of answering all comments that lend themselves to be answered.

With a slow connection and the need to spend as much time as possible swimming  in the blue waters of Elafonisos, this is bound to be a side effect. I will be back in regular blogging mood by August 10th.
Pessimist in Elafonisos

Pessimist in Elafonisos

Jul 24 2010 | comment(s)

While a thousand physicists gather in hot Paris and listen to talk after talk, I am confined in a small island of the Mediterranean, trying to relax and gather my ideas for the next few aggressive months of data analysis, a course of subnuclear physics in the fall, and of course, more reckless rumor-mongering!