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AMVA4NewPhysics

A Marie Sklodowska-Curie ITN funded by the Horizon2020 program of the European Commission

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Particle Physics

Muon G-2: The Anomaly That Could Change Physics

by Tommaso Dorigo

Do you remember the infamous “g-2” measurement ? The anomalous magnetic moment of the muon has been for over a decade in the agenda of HEP physicists, both as a puzzle and as a hope for good things to come.

Ever since the Brookhaven laboratories estimated the quantity at a value over 3 standard deviations away from the equally precise theoretical predictions, the topic (could the discrepancy be due to new physics??) has been commonplace in dinner table conversations among HEP physicists.

Similarly, no self-respected “global fit” of standard model observable quantities or scan of allowed parameter space of supersymmetric theories Continue reading “Muon G-2: The Anomaly That Could Change Physics”

Art and Science 6: Particle Garbage

by the AMVA4NewPhysics press office

Continuing the series of posts displaying artwork by high-school students of the Venice area, the pictures below illustrate a work done by Francesco Barbato,  Asia Colmagro, and Alice Sanguin, students of the Liceo “Marco Foscarini”.

The students devised a slightly critical work, which is well described in a few sentences they put together in a flyer they produced along with Continue reading “Art and Science 6: Particle Garbage”

Art & Science 5: From Galileo to the Higgs Boson

by the AMVA4NewPhysics press office

The fifth artwork presented here for the series “Art & Science” (see previous posts for more details of this art contest, connected to the EPS 2017 conference) is actually titled “Toward the Boson and Beyond”. It is the result of collaboration of three students of the Liceo Marco Foscarini in Venice: Chiara Chiapatti, Micol Zhu, and Ludovica Violato. The students designed and realized a way to imagine a particle collision using a telescope. You thus get to literally immerse yourself in the beam pipe Continue reading “Art & Science 5: From Galileo to the Higgs Boson”

Art & Science 4: Canvas Installation

by the AMVA4NewPhysics press office

Chiara Cattelan and Lorenzo Banchieri, two students of Liceo Marco Foscarini in Venice, are the authors of the work presented in this post, which along with the others presented in the former posts partecipates in the artistic contest for the EPS 2017 conference, organized by the EU project “CREATIONS” and sponsored by our network.

The two young artists have conceived an installation made up by two canvases set up back to back, one representing a LHC detector Continue reading “Art & Science 4: Canvas Installation”

Art & Science 3: The Universe Between My Fingers

by the AMVA4NewPhysics press office

Today Ivan Bianchi, professor of Contemporary art at the University of Padova, visited along with the AMVA4NewPhysics network coordinator the Liceo “Marco Foscarini” in Venice, to assess the status of the projects produced by the students for the “Arte & Scienza” contest.

The project has been described previously. In a nutshell, it foresees artistic work by high-school students, inspured by high-energy Continue reading “Art & Science 3: The Universe Between My Fingers”

Recasting new physics searches at the LHC

The AMVA4NewPhysics work package I am involved in is related to developing tools for recasting new physics searches, with a particular focus on multivariate analyses. I would like to explain a little more about it in this article.
Let me begin by describing the motivation to look for new physics at the Large Hadron Collider (LHC). Despite the fact that the Standard Model (SM) of particle physics is very successful at describing most properties of elementary particles, there are many reasons to believe that nature is much more complicated and there is new physics, or physics beyond the Standard Model (BSM). Firstly, there is the hierarchy problem that asks why the electroweak scale or the Higgs mass, 125 GeV can be so light compared to the cutoff scale of the SM, the Planck scale if there is no BSM physics, which is 17 orders of magnitude larger than the electroweak scale. The Higgs mass is unprotected by any symmetry in the SM, and the quantum corrections to its mass are proportional to the cutoff scale. One requires an extreme fine tuning to keep the Higgs boson light while renormalizing the quantum effects, which seems to be totally unnatural. Secondly, as explained previously, there exists dark matter, which is thought by many to be a new type of elementary particle. For these and many other motivations, people are excited at the prospects of discovering BSM physics at the LHC.

Continue reading “Recasting new physics searches at the LHC”

INSIGHTS: a New Little Brother for AMVA4NewPhysics

by the AMVA4NewPhysics Press Office

AMVA4NewPhysics has a little brother, INSIGHTS. The latter is in fact young but not so little, as it starts big: it is a new ITN that has just been approved and will be funded for four years with 3.14 million euros, starting in September 2017. Like AMVA4NewPhysics, INSIGHTS is a child of the marriage of particle physics and statistics, and like AMVA4NewPhysics it will train highly-skilled graduate students on a wide range of topics, bringing interdisciplinarity into their genes. Finally, like its older brother, INSIGHTS has INFN as a beneficiary partner, and it will bring funding to its Naples and Padova section, in the latter case with Dorigo, who is also the scientific coordinator of AMVA4NewPhysics, as PI.

It is important to recall that the whole concept of the ITN institution, one of the “Marie-Curie Actions” of the Research Executive Continue reading “INSIGHTS: a New Little Brother for AMVA4NewPhysics”

Convolutional Neural Networks and neutrinos

by Cecilia Tosciri

Have you ever wondered how Facebook suggests the tags for the picture you post on your wall, or how the photo library on your computer manages to automatically create albums containing pictures of particular people? Well, they use facial recognition software based on Convolutional Neural Network (CNN).

CNN is the most popular and effective method for object recognition, and it is a specialized kind of neural network for processing data that has a known grid-like topology. The network employs a mathematical operation Continue reading “Convolutional Neural Networks and neutrinos”

My First Time at CMS

by Alessia Saggio

Every year, my university organizes a trip to CERN for Bachelor’s students only, to give them the chance to get acquainted with the world of Particle Physics before starting the Master. This year I was one of the three PhD students who accompanied them, and I thought it would be nice to share my feelings here with you since it was a really nice experience.

In fact, it was my fourth time at CERN, but despite that I had never had the chance to visit the CMS detector, the experiment Continue reading “My First Time at CMS”

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