Abstract
First results on hadron production using the 0.9, 2.36 and 7 TeV data are presented. The topics covered include spectra and multiplicity distributions of charged hadrons, spectra of strange hadrons, angular and Bose-Einstein correlations of charged particles. This is just the beginning of a successful physics program at the LHC, with possible future discoveries.
Highlights
The Compact Muon Solenoid (CMS) experiment detected the first proton-proton collisions at the end of November in 2009
During the 2009 run mor√e than 300 000 minimum bias events were collected at s = 0.9 TeV and about 20 000 at 2.36 TeV
Having observed the first 7 TeV collisions on March 30th (Fig. 1), there have been several million collisions recorded so far, which resulted in many interesting physics results
Summary
The Compact Muon Solenoid (CMS) experiment detected the first proton-proton collisions at the end of November in 2009. During the 2009 run mor√e than 300 000 minimum bias events were collected at s = 0.9 TeV and about 20 000 at 2.36 TeV. In the early spring of 2010 the experiment was collecting minimum bias triggers, with typical rates of 50-100 Hz. Having observed the first 7 TeV collisions on March 30th (Fig. 1), there have been several million collisions recorded so far, which resulted in many interesting physics results. This report shows the detector and reconstruction performance, as well as the first physics results from inclusive hadron production
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