UPDATE: before you read the text below, one useful bit of information. The author of the analysis described below is not a member of ALEPH since 2004. He got access to the data as any of you could, since the ALEPH data is open access by now. There would be a lot to discuss about whether it is a good thing (I think so) or not that any regular joe or jane can take collider data and spin it his or her own way and claim new physics effects, but let's leave it for some other post. What is important is that ALEPH is not behind this publication, and members of it have tried to explain to the author that the claim was bogus. Indeed, on the matter of the source of the signal: it is clearly spurious, as the muons are collinear with the b-jets emitted in the Z decay.
Last August 27 a full-day outreach event was held in the nice small town of Veroia, in northern Greece, as one of the satellite activities to the international conference “Quark Confinement and the Hadron Spectrum” which took place in Thessaloniki during the following days.
Last December, when the ATLAS and CMS experiments gave two bacl-to-back talks at the end-of-the-year LHC "physics jamboree" in the CERN main auditorium, the whole world of particle physics was confronted with a new question nobody had seen coming: could a 750 GeV particle be there, decaying a sizable fraction of the time into pairs of energetic photons? What new physics could account for it? And how to search for an experimental confirmation in other channels or phenomena?
The text below is part of a chapter of "Anomaly!" which I eventually removed from the book, mainly due to the strict page limit set by my publisher. It is a chapter that discusses the preparations for Run 2 of the Fermilab Tevatron, which started in 2002 and lasted almost 10 years. There were many, many stories connected to the construction of the CDF II detector, and it is a real pity that they did not get included in the book. So at least I can offer some of them here for your entertainment... [A disclaimer: the text has not been proofread and is in its initial, uncorrected state.]
The first few copies of my new book, “Anomaly! – Collider Physics and the Quest for New Phenomena at Fermilab” arrived this morning from Singapore.
The INFN exam for nuclear and subnuclear physicists, to select 58 new researchers, took place on September 19th (first test) and 20th (second test) in Rome. Two different locations for the two tests were set up as the number of candidates who enrolled in the selection were 720, a too large number to manage in a single location.
Neutrino Mixing CP-violating
Phenomenology with only Two Free Parameters
The flavor-geometric semi-empirical phenomenology appears a powerful source of
new basic ideas in the Standard Model Flavor Sector.
Most recent new idea is CP-nonconservation as cause of deviation from exact
Euclidean 3-space geometric symmetry of neutrino bimaximal approximation. It is
represented by cos-squared Dirac CP-phase (CPph) [1. ResearchGate/L, 9/16],
cos^2(2θ12) +cos^2(2θ23) + cos^2(2θ13) = 1 + cos^2(CPph), (1)
Yesterday I read with interest and curiosity some pages of a book on the search and discovery of the Higgs boson, which was published last March by Rizzoli (in Italian only, at least for the time being). The book, authored by physics professor and ex CMS spokesperson Guido Tonelli, is titled "La nascita imperfetta delle cose" ("The imperfect birth of things").