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AMVA4NewPhysics

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

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ESR experience

AMVA4NewPhysics: Fully-Armed and Operational!

by Giles Strong

Just in time for our 4th all-network workshop, the AMVA4NewPhysics ITN reached full capacity with the addition of the two final ESRs, Seng (Munich) and Ioanna (Athens). The aforementioned workshop was hosted by the University of Oviedo, itself a recent addition to network, and organised by our outreach officer, Pietro, who did Continue reading “AMVA4NewPhysics: Fully-Armed and Operational!”

Workshop in Oviedo

by Tommaso Dorigo

For the first time, all the 10 Early-Stage Researchers hired by our ITN network got together, to attend the fourth all-network workshop. This was organized by the Outreach Officer Pietro Vischia in the University of Oviedo. Along with the network workshop, a Roostats tutorial is taking place as we speak in the Facultad de Ciencias.

It was very nice to see these young women (4) and men (6) showcasing their recent results on a number of attractive and cutting-edge topics Continue reading “Workshop in Oviedo”

Work, life, and a future-proof skill set

by Giles Strong

The other day I attended a seminar given by an alumna of my university. She’d studied a master’s in physics before leaving academia and going into the IT industry and the title of her presentation was “College to Corporate”.

She began with a quick overview of how she got to where she was and what her current life was like; how she worked with teams around the world and travelled frequently, all the while looking after her three children. Continue reading “Work, life, and a future-proof skill set”

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”

From Stars To Particles

by Ioanna Papavergou

Hi there! As this is my first post at the blog let me introduce myself. My name is Ioanna Papavergou and I am the new ESR of the AMVA4NewPhysics selected for the position at IASA in Athens. I was born and raised in Kavala, a small city by the sea located in the northern part of Greece.

Physics was my passion since high school and so there was no other option to me than studying Physics during my undergrad studies, getting my Bachelor degree from Aristotle University of Thessaloniki. During the Continue reading “From Stars To Particles”

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”

Dark Matter Hunting at the LHC

by Seng Pei Liew

photo1Hello there! My name is Seng Pei Liew, and I am the “Marie Sklodowska-Curie Actions” Innovative Training Network (AMVA4NewPhysics) early-stage researcher based at the Technische Universitat Munich (TUM). I am tasked in the network to look for new physics at the Large Hadron Collider (LHC) using advanced statistical tools. In my very first article here, I would like to talk Continue reading “Dark Matter Hunting at the LHC”

Understanding Neural-Networks: Part II – Back-propagation

by Giles Strong

Welcome back to the second part of my introduction into how neural-networks function! If you missed the first part, you can read it here.

When we left off, we’d understood that a neural network aims to form a predictive model by building a mathematical map from features in the data to a desired output. This map takes the form of layers of neurons, each applying a basic function. The map is built by altering the weights each neuron applies to the inputs. By aiming to minimise the loss function, which characterises the performance of the network, the optimal values of these weights may be learnt. We found that this can be a difficult task due to the large number of free parameters, but luckily the loss function is populated by many equally optimal minima. We simply need to reach one, and can therefore employ the gradient descent algorithm. Continue reading “Understanding Neural-Networks: Part II – Back-propagation”

Some More Info on the IML Workshop

by Giles Strong

Below is a short summary of the IML workshop at CERN, which Markus Stoye has also reported on in the previous post.

Day 1 was a discussion with industry experts about the state and future of ML. In the afternoon there was work on the community white-paper that the IML plans to publish. This document is meant to be a road-map for where we want HEP to be in 10 years time with regards to ML. The proto-document is Continue reading “Some More Info on the IML Workshop”

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