After the initial proton-proton reference run has been completed reasonably smoothly CMS is now really logging Heavy Ion collisions. As usual in those relatively short periods the CMS control room in Meyrin is full of the Heavy Ion folks. This…
I’ve been a postdoctoral researcher at MIT for three years, but I’ve spent almost all of that time in Geneva, Switzerland working with many other members of the PPC group in our bustling corridor of Building 32 on the CERN…
The LHC has just dumped its last proton-proton collision fill for 2024. Below is the final proton run picture where the news was announced. The year has seen a new record in data taken in a given amount of time…
CMS has a rich heavy-ion physics program covering measurement of jet quenching, quarkonium suppression, heavy flavor, flow correlations, and forward physics. Many of the physics goals involve rare probes of the quark-gluon plasma that rely on large data samples. The…
Just earlier today the seminar for the W boson mass measurement from CMS has been publicized. The result is of course kept secret for now. I know a number of people who are feverishly awaiting to see what the first…
As summer comes to an end, last Friday we said goodbye to Joseph Sorel, an undergraduate summer student who joined us from Washington University in St. Louis. Joseph worked with the SUEP team on the WH channel, focusing his efforts…
CAVEAT: this post was embargoed for several weeks because it contains ‘the number’. Just before we could move to the DAQ section during the meeting Josh popped up this plots … glasses of champagne in his hands with Kenneth and…
When the summer turns really hot and it is late July in Geneva there is usually a notable slow down. August is coming and everybody knows this is the time when people take their vacation, they go to the seaside…
On August 14, 2024 at 10am the Kolker room was well populated by experimental and theoretical physicists mostly. Tianyu Yang’s thesis was on the agenda for today and it was a wonderful presentation which also served as his thesis defense.…
In 2017, the Large Hadron Collider (LHC) achieved a groundbreaking milestone in instantaneous luminosity, delivering data at twice the rate it was originally designed for. This presented a new challenge for the CMS detector: efficiently selecting and retaining significant events…
