CEDAR

New Rivet analysis - ATLAS_2024_I2791854: Jet cross-section ratios at 13 TeV 🎉 #HEP #OpenScience

Download from:
lhapdf.hepforge.org/downloads/

Developer checkout:
gitlab.com/hepcedar/lha...

#HEP #LHAPDF #QCD #ParticlePhysics #MonteCarlo #OpenScience

Highlights include:
• Speed-ups in the grid-indexing hot loop
• Efficiency improvements in Fortran evolvepdfm & lhapdf_xfxq2_stdpartons
• Improved & safer replica-set uncertainty calculations
• Python interface now requires Python 3

🚀 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. 🧵

New Rivet analysis - ATLAS_2016_I1475477: exclusive WW production at 8 TeV 🎉 #HEP #OpenScience

📢 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. 🧵

New Rivet analysis - ATLAS_2022_I2172216: VLQ pair production to Zt + X at 13 TeV 🎉 #HEP #OpenScience

New Rivet analysis - ALICE_2024_I2803487: inclusive isolated photon production at 13 TeV 🎉 #HEP #OpenScience

New Rivet analysis - ATLAS_2024_I2829427: Photonuclear jet production in ultraperipheral Pb+Pb at 5TeV 🎉 #HEP #OpenScience

New Rivet analysis - ZEUS_2004_I649041: dijet dependence on photon virtuality 🎉 #HEP #OpenScience

New Rivet analysis - ZEUS_2021_I1869927: azimuthal correlations at HERA 🎉 #HEP #OpenScience

New Rivet analysis - ZEUS_2023_I2694205: ZEUS inclusive jets in DIS 🎉 #HEP #OpenScience

New Rivet analysis - ZEUS_2024_I2794054: azimuthal correlation in DIS 🎉 #HEP #OpenScience

New Rivet analysis - H1_2002_I581409: dijets in photoproduction 🎉 #HEP #OpenScience

📦 pip install contur or: gitlab.com/hepcedar/con...

Thanks to MIAPbP & our summer students! 🎉
#HEP #OpenScience #LHC #Rivet #Contur

🚀 Contur 3.1.3 released!
Works with Rivet 4.1.1 & YODA 2.1.1. Highlights:
✔️ New Rivet analyses & SM predictions (ATLAS ttbb, CMS Z+jets, etc.)
✔️ Config file support
✔️ New plots for Spey stats
✔️ Faster batch runs & heatmap tools
✔️ Numpy2 compat, optional LaTeX

Check it out 👉 rivet.hepforge.org

#HEP #LHC #Rivet #ParticlePhysics #OpenScience

🚀 New Rivet 4.1.1 release!

🔹 Remote HepMC source support (e.g. xrootd)
🔹 Differential negative-weight plots via MC_WEIGHTS
🔹 Runtime toggle for event smearing
🔹 ONNX inference supports both float & double
🔹 Improved DileptonFinder + DIS projection robustness
🔹 New & updated LHC/HERA analyses!

New Rivet analysis - ATLAS_2025_I2905252: High-mass ditau measurement at 13 TeV 🎉 #HEP #OpenScience

New Rivet analysis - ZEUS_2003_I613625: Dijet angular charm distributions 🎉 #HEP #OpenScience

✔️ YODA-to-HEPData export
✔️ Smarter Estimate handling in yodaenvelope & yodamerge
✔️ Plotting fixes: overflow bins, aux lines, opacity & more

🔗 yoda.hepforge.org

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

🚀 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

New Rivet analysis - CMS_2024_I2796231: W+W- boson pair production at 13.6 TeV 🎉 #HEP #OpenScience

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

A group photo of the participants of the 2025 MCnet school.

📸 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).

#MCnet2025 social programme going well!

Joanna Sobczyk and Stefan Hoeche teaching neutrino and collider MC at #MCnet2025

Enrico Bothmann finishing up his introduction to event-generator physics at #MCnet2025

New Rivet analysis - CMS_2025_I2924533: Event shapes in min-bias events at 13 TeV 🎉 #HEP #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 consis...

Also new in CONTUR 3:
✔️ New plotting tools
✔️ Expanded model coverage

Read more in our release note:
arxiv.org/abs/2505.09272

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