Clik here to view.
The muon anomaly and the Higgs mass – part I
Note: despite the technical nature of the matter, I have made an effort to keep this post to a level simple enough that non-scientists should be able to handle. Feedback is welcome! Nowadays when you...
View ArticleClik here to view.
The fascinating b quark cross sections
Sometimes I come to think I need a secretary, or even better, a press office. It is such a tough job to keep up to date with the scientific publications popping out on a daily basis, that I sometimes...
View ArticleClik here to view.
CDF beats theory on the top pair cross section
Among the huge amount of beautiful new measurements produced at the Tevatron by the CDF and D0 experiments last month, just in time for showing at ICHEP 2008, the international conference in...
View ArticleClik here to view.
A QCD measurement and why you should care about it
Quantum ChromoDynamics, the theory of strong interactions, is admittedly not considered the most exciting branch of particle physics at colliders these days. QCD processes make up 99.99% of what...
View ArticleClik here to view.
Upsilon polarization: a surprise from D0
I was surprised by the recent measurement by the D0 collaboration of the Upsilon polarization, which finds a sizable effect which really disagrees with the CDF result, obtained six years ago and based...
View ArticleClik here to view.
The Z mass at a hadron collider
The Z boson mass has been measured with exquisite precision in the nineties by the LEP experiments ALEPH, OPAL, DELPHI and L3, and by the SLD experiment at SLAC: we know its value to better than a few...
View ArticleClik here to view.
What has been going on around
I occasionally realize that this blog is a dead end of web surfers, not so much for its content -who cares about content these days- but for the lack of meaningful links. Apart from the blogroll column...
View ArticleClik here to view.
Three exquisite exclusive charmonium signals
It is my pleasure today to report on an extremely interesting measurement recently produced by the CDF experiment, one which is dear to me for several reasons. First of all, the measurement involves...
View ArticleClik here to view.
What is a glueball ?
This post is just a placeholder for a link and an invitation for you to join me and ask Marco Frasca to further his already enlightening discussion of glueballs, as I already did in the comments thread...
View ArticleClik here to view.
Some posts you might have missed in 2008 – part II
Here is the second part of the list of useful physics posts I published on this site in 2008. As noted yesterday when I published the list for the first six months of 2008, this list does not include...
View ArticleClik here to view.
An exam in Subnuclear Physics
Here are the questions asked at an exam in Subnuclear Physics this morning: Draw the strong and electromagnetic coupling constants as a function of , explain their functional dependence using feynman...
View ArticleClik here to view.
Guess the function: results
Thanks to the many offers for help received a few days ago, when I asked for hints on possible functional forms to interpolate a histogram I was finding hard to fit, I have successfully solved the...
View ArticleClik here to view.
CDF discovers a new hadron!
This morning CDF released the results of a search for narrow resonances produced in B meson decays, and in turn decaying into a pair of vector mesons: namely, . This Y state is a new particle whose...
View ArticleClik here to view.
Streaming video for Y(4140) discovery
The CDF collaboration will present at a public venue (Fermilab’s Wilson Hall) its discovery of the new Y(4140) hadron, a mysterious particle created in B meson decays, and observed to decay strongly...
View ArticleClik here to view.
What is the Y(4140)? The plot thickens
I read with interest -but it would probably be more honest to say I browsed, since I could understand less than 50%- a preprint released three days ago on “The hidden charm decay of Y(4140) by the...
View ArticleClik here to view.
Physics Highlights – May 2009
Here is a list of noteworthy pieces I published on my new blog site in May. Those of you who have not yet updated their links to point there might benefit from it… Four things about four generations...
View Article
