Proton-proton running closes for 2025

On November 4th at 22:10 the last 2025 proton-proton run of the LHC came to a close. As can be seen on the picture below, the LHC in the first third of the data taking fell a little behind the…

On November 4th at 22:10 the last 2025 proton-proton run of the LHC came to a close. As can be seen on the picture below, the LHC in the first third of the data taking fell a little behind the…

Joel Butler is a former CMS Spokesperson (2016-18), but for us much more importantly, he is a PhD out of our own PPC (PhD MIT, 1969-1975, Advisor: Lawrence Rosenson), and he has been awarded with the APS 2026 Panofsky Prize…

Her life as a physicist started officially with her Laurea (2000) in Padova, Italy from where she moved directly to Purdue for her PhD (2006). Anadi is a Senior Scientist at Fermilab and held various notable appointments at Fermilab, TRIUMF,…

In recent years, the CEPC project has successfully completed several major milestones, including the publication of multiple design reports and the completion of three rounds of in-depth reviews. These achievements mark the transition of the project from the design stage…

As of October 22, 2025, the Large Hadron Collider (LHC) has delivered 500/fb (inverse femtobarns) of integrated luminosity to its major experiments, ATLAS and CMS. The total delivered luminosity is a measure of the total number of particle collisions generated…

Last week one of our collaborators on the A2RCHI project came back from a visit to his home in Colombia with a special treat for the group. He brought us a package of exquisite coffee ‘Juan Valdez’ medium roast. Its…

We are deeply saddened to share the news of the passing of our dear colleague and friend Konstanty (Sham) Sumorok, who passed away peacefully in his sleep on October 3, 2025, at the age of 77. Born on February 19,…

The Open Symposium on the European Strategy for Particle Physics (ESPP) concluded on June 27, 2025, in Venice, serving as a critical community consultation for formulating Europe’s next major project in high-energy physics. “The time is ripe to forge a…

Two happy interns who will work on the public image of A2rchi and perform lots of A2rchi tests arrived at Fermilab, where they will spent the summer. The A2rchi web site right now looks rather basic …. Let’s see what…

LHC must have been in a mood to test the limits. According to reports from our data acquisition team CMS recorded pileup collisions at an average of 135 per crossing which is about two times as much we have been…