CMS Muons in 7 TeV Collisions

March 30, 2010 at 7:02 am 2 comments

It is an exciting day, with thousands of 7 TeV collision events flowing in. I watched the frustrating first failures from my laptop at home, in the middle of the night. Now that the sun is up, the scenario is much brighter – CERN just held a press conference in which the Steve Myers and the leaders of the four LHC experiments proudly and joyfully showed that they are taking data.

Here is a pretty event from my own experiment, CMS, in which a clean muon track is reconstructed well:
event display muon event 7 TeV
The muon is the long red track the curves down to the lower right-hand corner. It has been detected and reconstructed in the Cathode Strip Chambers (CSCs), and my group at Northwestern belongs to the CSC group within CMS. So I am pleased and proud to see this nice event!

Edgar Carrera posted a different CMS event at US LHC Blog, where you can also see events from ATLAS.

The official CMS Press Release, in several world languages, is available here.


Entry filed under: Particle Physics.

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2 Comments Add your own

  • 1. Gordon Watts  |  March 31, 2010 at 6:22 am

    Nice! I really like the event display style.

    Are you in CMS allowed to show live real-time event displays? In ATLAS this is not allowed – but for reasons I’m not clear on. So we can’t have a live-event display the way we do for the fermi machines.

    • 2. Michael Schmitt  |  March 31, 2010 at 8:40 am

      Hi Gordon!

      no, we are cautioned to post only displays that have been approved. Since the approval happens quickly, however, this is not a real hindrance. When it comes to real physics, such as a J/psi candidate, one would have to be more careful.

      I suspect that real-time event displays will become common later on, perhaps after summer conferences (ICHEP).



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