@iamchrisg

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Particle physicist on the #ATLAS experiment & #RSE at #UCL ARC.
Working on Monte Carlo event generators, #LHC collider data analysis, and high-performance computing for #HEP.
Core developer of tools like Rivet & YODA.
Views are my own.
websitehttps://cern.ch/chrisg

🚀 LHAPDF 6.5.6 released!

The first update since Dec 2024 — and while technically a patch release, it includes several significant bugfixes and performance improvements. 🧵

📢 Registration is now open – MCnet Summer School 2026 at CERN

📍 CERN, Geneva
📅 31 May – 5 June 2026

A 5-day in-person course on the physics & techniques of modern Monte Carlo event generators for PhD students and early-career postdocs. 🧵

Great talk at #fosdem2026 by Alya Abbott about Pull Request Etiquette and Best Practices. “Social work comes before coding work”. 💯
Saw this on a Quora answer and... hope you like 😆 https://qr.ae/pCco95

📢 MCnet short-term PhD studentships now available!

We’re advertising a new suite of 3-month studentships for PhD students working on Monte Carlo event generators, QCD, ML, and HPC. Flexible location, home PhD affiliation retained. 🧵

📢 We’re hiring!
A postdoc position is now open at our MCnet node in Krakow, starting next autumn.
Focus areas: factorisation schemes, QCD, PDFs, MC generators & collider phenomenology.
Please apply or share!
👉 https://inspirehep.net/jobs/3088724
#HEP #ParticlePhysics #MCnet #Jobs
INSPIRE

👋 Hello Mastodon! This is the official account of the MCnet Collaboration — developing Monte Carlo event generators and training the next generation of particle physicists.
We'll share updates on software, schools, studentships, and events across the collaboration.
Follow along! 🚀

🚀 New YODA 2.1.1 release!

The latest patch in the 2.1.x series brings:
✔️ Flexible normalisation options (yodascale)
✔️ Kolmogorov–Smirnov test support
✔️ Better Cython bindings & Python exception handling
✔️ YODA-to-HEPData export
✔️ Smarter Estimate handling in yodaenvelope & yodamerge
✔️ Plotting fixes: overflow bins, aux lines, opacity & more

🔗 https://yoda.hepforge.org/

#HEP #OpenScience #DataAnalysis #YODA #Rivet #CPlusPlus #Python

yoda – Hepforge

📸 A fantastic week at the MCnet Summer School 2025 in Stirling!

From matrix elements and parton showers to neutrino generators, ML, HPC and Public Health—great lectures, hands-on tutorials, and plenty of good conversations (and Scottish weather).

Thanks to all who joined! 👏
If you’re a PhD student or early-career postdoc working with Monte Carlo event generators, keep an eye out for next year’s school—you won’t want to miss it.

#MCnet #HEP #ParticlePhysics #MonteCarlo

🚀 CONTUR 3 is here!

CONTUR uses RIVET and its huge library of LHC measurements to test new physics models via fast limit-setting and consistency checks.

The new release brings:
✔️ Improved stats treatments
✔️ Efficiency boosts
✔️ New plotting utilities & SM predictions
✔️ Many more measurements

Read more: https://arxiv.org/abs/2505.09272

#HEP #ParticlePhysics #MonteCarlo #Rivet #Contur #LHC #OpenScience

Constraints On New Theories Using Rivet : CONTUR version 3 release note

The CONTUR toolkit exploits RIVET and its library of more than a thousand energy-frontier differential cross-section measurements from the Large Hadron Collider to allow rapid limit-setting and consistency checks for new physics models. In this note we summarise the main changes in the new CONTUR 3 major release series. These include additional statistical treatments, efficiency improvements, new plotting utilities and many new measurements and Standard Model predictions.

arXiv.org