Baptiste Ravina

Baptiste Ravina

Saltire Fellow (Royal Society of Edinburgh)

University of Glasgow

ATLAS Experiment

Particle physics. Machine learning. ATLAS.

I am a Saltire Early Career Fellow of the Royal Society of Edinburgh, hosted by the University of Glasgow. My research focuses on searching for new physics at the Large Hadron Collider with the ATLAS experiment, using precision measurements of the top quark and machine learning tools.

Education
  • PhD in Experimental Particle Physics, 2020

    University of Sheffield (UK)

  • Part III Maths, 2016

    University of Cambridge, DAMTP (UK)

  • BSc in Physics & Philosophy, 2015

    King's College London (UK)

Research interests
  • psychology Machine Learning
  • insights Likelihood-free Inference
  • filter_tilt_shift Anomaly detection
  • blur_on Effective Field Theory
  • equalizer Monte Carlo Generators
Recent activity

Experience

 
 
 
 
 
The Royal Society of Edinburgh
Saltire Early Career Fellow
Sep 2021 – Present Glasgow (UK)
Besides continuing my activities in Glasgow, the focus of my research is now on measuring the spin correlations of top quarks in associated production with a $Z$ boson ($t\bar{t}Z$). In my related phenomenological paper, I used Monte Carlo generators to predict this quantum property of top quarks in the Standard Model, highlighted how it differs from the more common $t\bar{t}$ case, and showed how to interpret any deviation from these predictions in the framework of Effective Field Theory.
 
 
 
 
 
University of Glasgow
Post-Doctoral Research Associate
Apr 2020 – Aug 2021 Glasgow (UK)

I led the legacy $t\bar{t}Z$ ATLAS measurement and contributed to the first measurement of the $t\bar{t}$ spin density matrix with the full Run 2 dataset; for both analyses, I developed an extensive Effective Field Theory fitting framework in the Julia language. I was also involved in background estimations for a combination of Dark Matter searches with $t\bar{t}+E_\mathrm{T}^\mathrm{miss}$ signatures, as well as prototyping an auto-encoder for an Anomaly Detection based search for new physics.

Other responsibilities included:

  • Supervision of MSc and PhD students
  • Summarising ATLAS and CMS $t\bar{t}+X$ results for the LHC Top working group
  • Supporting the ATLAS Top group in Monte Carlo generation
  • Acting as ATLAS Trigger online expert and online release coordinator
 
 
 
 
 
The Institute of Physics
Committee Member, High Energy Particle Physics group
Apr 2018 – Apr 2022
  • Funding assistance for UK HEP workshops
  • Organisation of the yearly Astrophysics + HEP conference
  • Liaison with UK students
  • Outreach activities

Meet the team!

Main collaborators

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Caterina Doglioni

University of Manchester

Professor of Particle Physics

Dark Matter, Anomaly detection

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James Howarth

University of Glasgow

University Research Fellow (Royal Society)

Top physics & spin correlations

PhD students

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Ethan Simpson

EFT & spin correlations
(post-doctoral supervision for James Howarth)

MSc students

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Craig Shewry

EFT & machine learning

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Hassan Shahid

Anomaly detection

Alumni

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George Dialektakis

CERN / Google Summer of Code 2021

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Honey Gupta

CERN / Google Summer of Code 2020, then Applied Scientist at Amazon

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Marija Vaškevičiūtė

MSc 2020–2021, then PhD Glasgow

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Varsha Senthilkumar

MSc 2019, then PhD IFIC Valencia

Get in touch