Physics

Researchers and academics below the full-professor level in Italy are currently busy with an idle exercise- putting together their applications to a selection for would-be assistant and full professors. By the way, this is happening to me as well, so you m ...

Article - Tommaso Dorigo - Nov 8 2012 - 8:03am

What Makes Particles Unstable?

A journalist I am following on twitter just posted the question in the title of this post. I felt bound to try and give an answer with as simple concepts as I found meaningful. So, what makes a unstable particle unstable? One answer is this: a particle is ...

Article - Tommaso Dorigo - Nov 9 2012 - 3:59pm

Top Quark Mass: The Final Word From The Tevatron

The CDF and DZERO collaborations at the Fermilab Tevatron collider just saw published on Physical Review D (PRD 86, 092003) their final combination of their most recent and precise measurements of the mass of the top quark. This result, which is probably g ...

Article - Tommaso Dorigo - Nov 12 2012 - 7:43am

LHCb: Evidence For Rare Decay Bs To Dimuons

It has taken a while, but the rare decay of B_s mesons (particles composed of a bottom and an anti-strange quark) to muon pairs has finally been seen. The authors of the find-we cannot yet call it an observation given the scarce statistical significance of ...

Article - Tommaso Dorigo - Nov 12 2012 - 12:01pm

Top Quark Results At HCP: Asymmetries

The Hadron Collider Physics symposium opened yesterday in Kyoto. I am not following the works very closely, but I did give a peek at today's talks, which were on the topic of top quark physics. ...

Article - Tommaso Dorigo - Nov 13 2012 - 10:39am

Higgs: New ATLAS And CMS Results

Today new results of Higgs searches have first been shown in Kyoto, at the Hadron Collider Physics conference. Let us see the CMS and ATLAS updates of their measurements in the ZZ-> 4 leptons final state, which constitutes the best signal-to-noise chann ...

Article - Tommaso Dorigo - Nov 14 2012 - 3:53am

CMS And ATLAS: Higgs To Tau Pairs!

Maybe more interesting than the just reported result of searches for the Higgs boson into four-lepton final states (ee, eμ, μμ) are the result presented by CMS and ATLAS on the searches for the Higgs decay into tau-lepton pairs. The reason for the interest ...

Article - Tommaso Dorigo - Nov 15 2012 - 8:09pm

The hierarchy of objects

I present you my personal view on the hierarchy of objects that occur in nature. I only treat the lowest levels. A-- The lowest level is space that is formed by the number system of the RATIONAL quaternions. However, better make it an affine space (a spac ...

Blog Post - Hans van Leunen - Nov 22 2012 - 5:12am

God Does NOT Play Dice But Einstein Is Still Wrong

Einstein infamously said, and he said so many times, that god does not play dice. He said this in order to refute indeterminism, and therefore, we cannot say that he was correct: The meaning he intended to communicate was probably wrong (depending on y ...

Article - Sascha Vongehr - May 5 2013 - 12:56am

Top Pair Resonances Search, Full CDF Statistics

The top quark is the heaviest of the six known hadron constituents, discovered at the Fermilab Tevatron collider in 1995. Because of its quite large mass-over forty times more than the second-heaviest bottom quark- and because of a few additional interest ...

Article - Tommaso Dorigo - Nov 28 2012 - 6:51am