Very cool new analysis! Due to the crazy data volume, standard data streams throw away >99.99% of collisions at the LHC But what if we didn't have to? For the first time CMS has performed a search using data processed on hardware in real time (40 million / sec) !

Great thread!

From the most recent one: "In this letter, we have applied goofy transformations to the SM, thereby also extending them to include the fermion sector. We have shown that all SM interactions are invariant under the appropriate goofy transformations, while the Higgs-mass term is forbidden."

Recently came across a petition for CERN to reconsider its relationship to Israel in light of the ongoing genocide in Gaza 1300+ signatures and counting Encourage all my CERN affiliated colleagues to sign!

Welcome to the September/October edition of #CERNCourier In this edition the future meets the past: the ongoing update to the European Strategy for Particle Physics, the outstanding discoveries of 1964, what may be the last chapter of the quarkonia story and much more. Read more: cerncourier.com

And we're off! Yifan Chen welcomes students to the Machine Learning for Fundamental Physics School 2025!

Now @ozamram.bsky.social discusses simple and advanced anomaly detection techniques in HEP

If you liked the recent CMS anomaly detection search, check out this paper for more details & validations! I particularly like this 'rediscovery' of boosted top quarks with anomaly detection! Left = before AD, right = after AD

Happy this paper is finally on arxiv! A fun mix of physics (jet substructure) being used to calibrate the performance of ML algorithms (jet taggers) to get proper uncertainties Now a standard CMS tool for interpreting searches for exotic jets, used in multiple analyses

🚨Great new Dataset article in #MLST🚨 @kasieczka.bsky.social @mikraemer.bsky.social @ozamram.bsky.social & co-authors ‘prep 180M jets from pp collisions for easy AI training & use them to pre-train a foundation model’ #FoundationModels #ParticlePhysics #OpenData #LHC Paper ➡️ bit.ly/4eE0QO1

Just click on this: skyviewer.app/explorer #RubinTelescope

Introducing...your sneak peek at the cosmos captured by NSF–DOE Vera C. Rubin Observatory! Can you guess these regions of sky? This is just a small peek...join us at 11am US EDT for your full First Look at how Rubin will #CaptureTheCosmos! 🔭🧪 #RubinFirstLook ls.st/rubin-first-look-livestream

So now it looks g-2, W mass, and R(K) are dead as anomalies Anyone have a favorite alive anomaly? R(D)? X17? (bolstered by recent PADME results 👀) something else??

Scientists for Palestine is holding a school on quantum physics Palestinian students in Jordan in July, but they need donations to make it happen! 🇵🇸 www.scientists4palestine.org/palestinian-... www.gofundme.com/f/support-pa...

Wondered what it would take for AI agents to design and test new theories for fundamental physics, just like a physicist? We show how, an example in neutrino model building! Paper with Jake, Max, Victoria, Jason leading crucial aspects, also @danielwhiteson.bsky.social . arxiv.org/abs/2506.08080

New paper on arXiv today! arxiv.org/abs/2506.06438 Wouldn't it be nice to fit in high dimensions using a data-driven background estimate? By using generative ML models you can! We showcase this on an example di-Higgs measurement, performing a 5D fit, (can probably go higher with more work)

Paper day! On a new usage of anomaly detection Our idea is to look for resonances produced with interesting other event activity (X), which you identify with one of the anomaly detection methods we have been using for jets arxiv.org/abs/2504.13249

CMS is seeing an unexpected excess of top quarks in their data. But what is causing it? Signs are pointing to 'toponium' an unstable bound state of two top quarks, which was previously thought impossible to form! Read more in the newest ParticleBites! www.particlebites.com?p=10001

What collider do early career particle physicists in the US want? We surveyed 100+, check out our input to the European strategy to find out! Short answer : Lots of variety of opinion, but highest enthusiasm for a @muoncollider.bsky.social arxiv.org/abs/2503.22834

CMS has a new result out fresh today for Moriond! "Observation of a pseudoscalar excess at the top quark pair production threshold" Very much looks like the discovery of toponium, a short-lived top - anti-top bound state arxiv.org/abs/2503.22382

There is currently a call for community input to the update of the European Strategy for Particle Physics. Here is one by early career researchers that highlights the importance of career perspectives and talent development when planning large projects over multiple decades: arxiv.org/abs/2503.19862

Standing up for science! On a cold wet Chicago day

It seems like the magnets needed for FCC-hh could be ready by ~2055 (or even earlier) ?! I had thought the magnets were main reason hh couldn't start until ~2070

Small Hadron Collider arcade game!

After many years I recently got to visit @cmsexperiment.bsky.social 😍

Our search looking for 'weird' jets using anomaly detection is now finally on arXiv! 🎉 arxiv.org/abs/2412.03747

First post on BlueSky! I'm excited to give a seminar at #CERN tomorrow on 6 years of work developing a complete statistical framework for high-dimensional inference of the Higgs width. Simulation-based inference on actual collision data in ATLAS, profiling all systematic uncertainties!

Over time I have learned I have neither the stomach or interest in highly competitive / cut-throat research areas Whenever I meet people I like to be very open about the projects I am working on and ideas I have, while I have gradually learned this is not how everyone operates

I put together a starter pack for people working in particle physics experiments (for now only collider based). Suggestions are very welcome! ⚛️ go.bsky.app/TFne5pM

Giving up on twitter, hoping things are little better over here?