Patrick Koppenburg 🐧
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koppenburg.ch
Patrick Koppenburg 🐧
@koppenburg.ch
Nikhef physicist at LHCb Experiment at CERN. Exotic Hadrons, European strategy for particle physics, Sustainable Accelerators. Chair of CERN users committee ACCU.
🐧📷🎓💻💫.
Born at 327.55 ppm CO₂. Président du PVL La Côte. 🟢🔵
Indeed the observation of the Higgs boson was announced 37 years later, on July 4 2012. John Ellis was in the room. I don't know where Gaillard and Nanopoulos were at that time. /end
November 7, 2025 at 8:43 AM
They ended the paper with a note of caution: Finding the Higgs boson will be hard.
November 7, 2025 at 8:42 AM
At that times the heaviest known particles were charm bound states, like the ψ(2S), at masses around 4 GeV. Everything above was "new particles", including the now well known b quark, and the W and Z bosons.
November 7, 2025 at 8:42 AM
At that time nobody knew what the mass of the Higgs boson would be. It could be anything. So they computed the possible decay modes and their rates depending on the Higgs mass.

They didn't dare going beyond a mass of 100 GeV.
November 7, 2025 at 8:42 AM
Do you transform like a vector?
November 6, 2025 at 4:30 PM
Nein, Nikon DSLR. Ich hab kein iPhone 🤷‍♂️
November 6, 2025 at 1:36 PM
Mond ist auch für eine gute Kamera schwierig. Es ist ein Tageslicht Bild (auf dem Mond ist es hell) im Dunkeln. Ich brauche immer Handeinstellungen.
November 6, 2025 at 11:15 AM
The 40 MHz input rate of the Large Hadron Collider would like a word
November 6, 2025 at 6:41 AM
Oui mais ça c'était vers 2006 quand il n'y avait que l'aimant. Maintenant on voit surtout les structures de support.
November 5, 2025 at 8:20 PM
Ils sont chauffés par mon expérience, @lhcb.bsky.social , mais l'image montre @cmsexperiment.bsky.social à Cessy 😂. Faut dire que c'est la plus photogénique.
November 5, 2025 at 7:48 PM
I sympathise. And realise how lucky I am to live in my CERN bubble.
November 2, 2025 at 9:41 AM
Aren't reviewers usually asked if they agree to see the manuscript again? I occasionally say no, for various reasons related to the paper.
October 31, 2025 at 9:44 AM
Some would say `not even wrong` 😅
October 30, 2025 at 5:04 PM