Devoir de respect des traditions. Fait.

A thread on spinoffs of the work of CERN stummer students. CERN has a programme for undergraduate students who spend 8 to 13 weeks at CERN. They follow lectures and work on a project. I regularly supervise such projects, as I did in 2012. home.cern/summer-stude... [1/9]

SailGP Mubadala Brasil team

Switzerland, Sotomo poll: Swiss–EU new agreements Support: 58% Oppose: 25% Fieldwork: 25 June-4 July 2025 Sample size: 1,716 ➤ europeelects.eu/switzerland #SwitzerlandEUrelations #SwitzerlandEU

4^2+3^2=5^2. Happy square day. #squareday #mathsfun

Hot off the press: Sustainability Assessment of Future Accelerators arxiv.org/abs/2509.11705

The more we know the less we know. By Stephan Pastis . 🧪⚛️ www.arcamax.com/thefunnies/p...

The good thing when I run 12 km is that I have plenty of time to think about my next talk. The bad thing is that now my 20 minutes talk is one hour long.

Infrastrukturen die schon wenige Jahren nach Inbetriebnahme überlastet sind. Beispiel N+1.

Voilà une offre d'emploi pour ceux qui n'ont peur de rien. #lausanne

@cern.bsky.social is really enforcing the Jeûne Genevois. #cestquoicebordel

Age verification? A lot of what I know about how computers work comes from a book about DOS 3.2.

Today LHCb presented a new measurement of the decay of a B meson into a K* and a μ+ μ- pair Previous results disagreed with the Standard Model prediction for the branching fraction and angular distribution The new measurement has almost twice as much data and still disagrees! 🧵1/6

😥

Eclipse

@annafim.bsky.social dans @letemps.ch

In 2018 LHCb had a hint (3σ) of the presence of a tetraquark in this decay mode. Now with double the data the hint is gone 🤷‍♂️. ⚛️

Indeed. You're open-source.

Ja zur e-ID! - staatlich wie die Plastik-ID im Portemonnaie - keine zentrale Datenbank, Daten bleiben verschlüsselt auf dem Handy - freiwillig – Pass und ID gelten weiterhin

#HepJobs Come join our LHCb group ! Opening for a PhD student at @rug.nl. www.rug.nl/about-ug/wor...

La Rippe

Huh? Assume you 𝑐𝑜𝑢𝑙𝑑 produce a baryon with three top quarks, why would it decay to a baryon of three b quarks? That requires a fine-tuned cancelling of the three W momenta. I expect three W and three b jets that would hadronize such to keep baryon number intact. 🧐 arxiv.org/abs/2508.19137

When reality exceeds expectations

Anecdote I heard from Herwig Schopper: In the early eighties the Nobel committee visited CERN. Schopper lobbied for Rubbia and van der Meer to get the Nobel prize. But van der Meer didn't have physics publications. As an accelerator physicist he favoured the conference/proceedings route. [1/2] ⚛️🧪

Status

RIP Herwig Schopper, CERN director general from 1973 to 1976. He made LEP possible, and thus also the LHC. Not so long ago I worked with him on a book about the scientific discoveries at CERN. Read the interview in the CERN courier about the lessons from LEP cerncourier.com/a/lessons-fr...

Nyon. Bonus points If you find the jet d'eau.

Annäherung der Schweiz 🇨🇭 und der EU 🇪🇺 ist in der Schweiz politisch schon schwierig genug. Da brauchen wir nicht, dass @nouripour.bsky.social reinredet. Sehr kontraproduktiv.

Löfori tü löro. #françaisFédéral @blick.ch

What gifs pop up when you type your name?

Interesting read on the history of science: Report on Women in Scientific Careers at CERN, dated 1980. By no less than late Mary K. Gaillard. Just one excerpt : ⚛️🧪

Votez pour la nouvelle série de billets de la Banque Nationale à www.neuebanknotenserie.ch . #teamB

Comment on a "Comment on "Standard Model Mass Spectrum and Interactions In The Holomorphic Unified Field Theory"" arxiv.org/abs/2508.08510

Need a drilling machine, @fccstudy.bsky.social ?

#uszit beer tagging @jamesblunt.com

Hannah Koppenburg & Dave Stewart. Finally got to see them.

Strange guitar.

That moment when autocomplete suggests cheese instead of cheers. 🧀 Cheese, Patrick

🍄

I preordered this book because I want it to be published. It's clear that when companies go bankrupt people lose money. I still want this to happen, so if another publisher goes for it I'll preorder it again.

Pub d'une page de la plus US des boissons dans @letemps.ch . Ils savaient ? #tarifs

Amazing. You can still find huge unknown insects.

I have been in the PI business long enough to know she was trouble the moment she walked in. “Have a seat” I told her. But she fidgeted like a cat on a hot tin roof, never at one place. “I have lost some valuable information” she said, “at a joint they call the Black Hole.” 🧪⚛️🧵

I don't really trust this app. 🕷️

We'll find each of your eigenvalues! And will place them on a diagonal! You communists! #arXivTitleOfTheDay #irony

Hello I am a CERN physicist in a film. I wear a tie and a white coat. I work all day in the underground control room that has windows showing the experiment and the LHC. Surprising experimental results show up in real time on computer screens.

>100 likes here. 17 on Facebook, 10 on X, and 2 on Threads. This place rocks.

Happy Pythagore day 24/7/25. (works in the US too). The next will be 24/10/26 and that's it for this century.

Happy #piday.