Blog Profile / The Gauge Connection


URL :http://marcofrasca.wordpress.com/
Filed Under:Academics / Physics
Posts on Regator:146
Posts / Week:0.4
Archived Since:December 19, 2008

Blog Post Archive

Curiosity finds organics but where do they come from?

Yesterday, at the meeting of the American Geophysical Union in San Francisco, NASA announced first results from soil analysis performed by Curiosity. Indeed, initially there was an eager expectation about this announcement as some rumors leaked out and somebody told about historical results. Then, all this was teased by NASA but what they announced yesterday [...]

A first paper on square root of a Brownian motion and quantum mechanics gets published!

Following my series of posts on the link between the square root of a stochastic process and quantum mechanics (see here, here, here, here, here), that I proved to exist both theoretically and experimentally, I am pleased to let you know that the first paper of my collaboration with Alfonso Farina and Matteo Sedehi was [...]

Unbreakable

Today, at HCP2012, new results on Higgs boson search were made available by CMS and ATLAS. Of course, well aligned with preceding rumors, all in all these appear rather disappointing. Maybe, beyond the increasing agreement with Standard Model expectations, the most delusional result is that the particle announced on July 4th appears to be completely [...]

Kyoto, arXiv and all that

Today, Kyoto conference HCP2012 has started. There is already an important news from LHCb that proves for the first time the existence of the decay. They find close agreement with the Standard Model (see here). Another point scored by this model and waiting for new physics yet. You can find the program with all [...]

Breaking of a symmetry: A paper

I have uploaded a paper on arXiv (see here), following my preceding post,  where I show that supersymmetry has inside itself the seeds for the breaking. I consider a Wess-Zumino model without masses (chiral) and I prove that, at lower momenta, it boils down to a Nambu-Jona-Lasinio model so, breaking supersymmetry through a gap equation [...]

Breaking of a symmetry

This week-end has been somewhat longer in Italy due to November 1st holiday and I have had the opportunity to read a very fine book by Ian Aitchison: Supersymmetry in Particle Physics – An Elementary Introduction. This book gives a very clear introduction to SUSY with all the computations clearly stated and going into the [...]

Large-N gauge theories on the lattice

Today I have found on arXiv a very nice review about large-N gauge theories on the lattice (see here). The authors, Biagio Lucini and Marco Panero, are well-known experts on lattice gauge theories being this their main area of investigation. This review, to appear on Physics Report, gives a nice introduction to this approach to [...]

Quote of the day

“With four parameters I can fit an elephant, and with five I can make him wiggle his trunk.“ (Attributed to von Neumann by Enrico Fermi, as quoted by Freeman Dyson in “A meeting with Enrico Fermi” in Nature 427 (22 January 2004) p. 297) Filed under: Quote Tagged: Enrico Fermi, Freeman Dyson, John von Neumann

Nobel prize to Serge Haroche e David Wineland

This year Nobel prize went to quantum optics for experiments that could be useful on the road to quantum computation. The awarded are Serge Haroche of the College de France and David Wineland from NIST (US). They performed groundbreaking  studies working with cavities and ion traps on single atoms and photons. I have had the [...]

Enrico Fermi’s birthday

Today is Enrico Fermi‘s birthday. Fermi has been a real Prometheus moving mankind to the age of nuclear energy for civil aims. His contributions to our current understanding of physics are enormous and we know as one of the greatest Italian scientist making an extraordinary pair with Galileo Galilei. The prominence of Italians on physics [...]

Confinement revisited

Today it is appeared a definitive updated version of my paper on confinement (see here). I wrote this paper last year after a question put out to me by Owe Philipsen at Bari. The point is, given a decoupling solution for the gluon propagator in the Landau gauge, how does confinement come out? I would [...]

Warp drive at NASA

I am currently a twitter user. One of my followings is Jeri Ryan. She has been Seven of Nine in Star Trek Voyager saga. Yesterday, it comes out of the blue what I read in one of her twits: NASA is developing warp drive! Indeed, Jeri was pointing to  this link. This is a Gizmodo’s [...]

ATLAS and CMS papers published

Papers by ATLAS and CMS have appeared in Physics Letters B and can be freely downloaded. They report on the discovery of the Higgs-like particle on July 4th. CMS Collaboration (2012). Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC Physics Letters B DOI: 10.1016/j.physletb.2012.08.021 ATLAS [...]

Higgs boson and conformal symmetry

So far, I believed to be the only man on Earth to trust a complete absence of mass terms in the Standar Model (we call this conformal symmetry). I was wrong.  Krzysztof Meissner and Hermann Nicolai anticipated this idea. Indeed, in a model where mass is generally banned, there is no reason to believe that [...]

The man passed away, the legend will always survive

Neil Armstrong passed away yesterday (see here). He was the first man to put his feet on the Moon. He started all my dreams when I was just nine and that July’s night I was staring at his extraordinary enterprise together with Buzz Aldrin (see here) and Michael Collins on the Apollo 11. Now, I am [...]

‘t Hooft and quantum computation

Gerard ‘t Hooft is one of greatest living physicists, one of the main contributors to the Standard Model. He has been awarded the Nobel prize in physics on 1999. I have had the opportunity to meet him in Piombino (Italy) at a conference on 2006 where he was there to talk about his view on [...]

Curiosity touched down successfully!

I was excited this morning while I was looking at the last minutes of flight of Curiosity there at JPL. This remembered when I was nine and, with my father, I looked at man on the moon.  This time Iwas with my sons and we shared happiness with all the people that worked hard for [...]

Papers by ATLAS and CMS on Higgs just appeared

As promised by the two collaborations at CERN, their papers have been today appeared on arXiv: “Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC“ “Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC“ [...]

Running coupling and Yang-Mills theory

Forefront research, during its natural evolution, produces some potential cornerstones that, at the end of the game, can prove to be plainly wrong. When one of these cornerstones happens to form, even if no sound confirmation at hand is available, it can make life of researchers really hard. It can be hard time to get [...]

H->WW channel at ATLAS

Today is started Higgs Hunting conference at Orsay (France). Data for WW decay of Higgs boson from ATLAS have been made public. The talk is here. The data provide a clear excess in this channel and the rate is somewhat higher with respect to the Standard Model expectations of about 1.5 sigma. Gamma-Gamma channel remains [...]

Copyright © 2015 Regator, LLC