"The yield of muon pairs decreased rapidly from 1 GeV to the kinematic limit of nearly 6 GeV with the exception of a curious shoulder near 3GeV. The measurement of muons was by range as determined by liquid and plastic scintillation counters interspersed with steel shielding. Each angular bin (there were 18) had four range bins, and for two muons this made a total of only 5000 mass bins into which to sort the data. Multiple scattering in the minimum of 10 feet of steel
made finer binning useless. Thus we could only note that "Indeed, in the mass region near 3.5 GeV, the observed spectrum may be reproduced by a composite of a resonance and a steeper continuum." This 1968-1969 experiment was repeated in 1974 by Aubert et al. (1974), with a

I am presently into the second week of my lessons of Subnuclear Physics for the 2nd year of specialization in Physics, and I have just finished a lesson discussing the current searches for the Higgs boson at the Tevatron collider. Since the course has a focus on experimental techniques, I found it useful today to give as an exercise the determination of an order-of-magnitude estimate of cross section limits that the CDF experiments can set on a 160 GeV Higgs boson, with the data so far analyzed. It is an exercise I worked out by heart during my walk to the Physics Department: this should tell you it is not of overpowering difficulty.

These days the Higgs boson search is a bit over-hyped, with the impending competition between Tevatron and LHC on the discovery of the fabled boson making headlines every time there is a new, even minor, update in the results of the CDF and D0 experiment. But the hunt is on for many other, maybe even more interesting, rare processes.

A Sunday morning browsing through preprints recently posted in the Cornell Arxiv revealed interesting reading material. If you have a couple of hours to kill next week, why not having a look at the following papers ? It will definitely hurt you less than spending the time on your WII or watching Jerry Springer.

My statistics page depressingly shows that a large fraction of readers who visit this site do so for an average of 30 seconds. Maybe they were looking for something different, or maybe they do not like the content offered here. In any case, I have decided that my long, detailed articles about particle physics are not exactly meeting the demand of the audience. I am not going to change my writing style because of that, of course, but I will try to also offer some thirty-seconds physics bits here, every once in a while. So let me make a dry run, using a recent result by the CDF collaboration. The clock may start.

"A black cat crossing your path signifies that the animal is going somewhere".

Groucho Marx

I have known Marco Cardin for a couple of years because besides being an accomplished amateur astro-imager he is also an avid visual observer. His encyclopedic knowledge of the night sky wonders is a great help on the field during the monthly night-long observations in dark, moonless nights we spend on the eastern Alps, trying to squeeze the most out of the 16" Dobson telescopes we carry with us. These instruments have no fancy "go-to" features, but with Marco's help and organization we can frame close to 100 rarely seen objects per night.

Mariano Crociata: a name, a promise. The general secretary of CEI (the Italian Episcopal Conference) secures a spot in the front page of Italian newspapers today by declaring that pharmacists in Italy should be allowed to object to the distribution of pharmaceuticals enabling " clearly immoral choices", like abortion. I wonder why he stopped short of asking for the removal of condoms from the counters. Hmmm, let me guess: a sudden change of mind about birth control ? Or just the knowledge that it would be too large an economical loss for pharmacy owners to self-flagellate that way ?

Ready for another turn into National-Enquirer mode of particle physics reporting ? I have a figure to discuss. It is a result now a few months old, but one which received little attention -less than it should have, perhaps. I myself got to see it only a few weeks ago in a presentation given by Jacobo Konigsberg, CDF spokesperson, at a workshop in Bologna.

The scandalistic cut of this article is manifest in the title: facing a dearth of exciting reports of new physics discoveries, we are bound to now and then swerve off the path of our usual responsible handling of two-sigma effects, odd deviations, and assorted zoology. It is, I believe, a necessary resource to rely on, if we are to keep the interest of Science readers on particle physics.

A friend told me this funny anecdote about the construction of a part of the inner tracker of the CDF detector called "ISL", the so-called "intermediate silicon layers" which were constructed in Italy and then sent to Fermilab for installation in the core of CDF.

A technician reports: "When we were finished with the construction and we had to move to Fermilab to install the device, he took extreme care to arrange the shipment of the expensive, sensitive device overseas in three parts, with three separate cargos, such that if a plane had an accident, we would only lose a third of the detector.
...However, he sent us (all the technicians who had done the assembly, and were now needed at Fermilab for the installation) all in the same plane!"