Speaker
Chang Liu
(Purdue University)
Description
Despite of the delay of physics collisions at the Large Hadron Collider
(LHC), induced by the incidence in September 2008, the CMS collaboration is
utilizing the commissioned detector to take large amounts of cosmic data.
About 300 million cosmic events were recorded with the full detector and a
magnetic field of 3.8~T turned on. The effort has provided significant
statistics to study the detector performance and analyze the physics of
cosmic rays. We present recent results from the cosmic muon analysis
activities that were conducted using real cosmic data and dedicated cosmic
Monte Carlo samples. Measurements of the cosmic muon charge ratio and the
flux measurement were performed and have demonstrated the expected
performance of the capability of the CMS detector to do real physics
analysis. The cosmic muon analysis effort is not only a dress rehearsal for
the physics analysis at the LHC, but also the first physics results of the
CMS experiment and provides interesting links to astrophysics.
Author
Boaz Klima
(Fermi National Accelerator Lab. (Fermilab)-Unknown-Unknown)
