Research Papers in Physics and Astronomy

 

Date of this Version

2010

Comments

Published in Physical Review Letters 105, 032001 (2010) DOI: 10.1103/PhysRevLett.105.032001.Copyright 2010 CERN, for the CMS Collaboration.

Abstract

Bose-Einstein correlations have been measured using samples of proton-proton collisions at 0.9 and 2.36 TeV center-of-mass energies, recorded by the CMS experiment at the CERN Large Hadron Collider. The signal is observed in the form of an enhancement of pairs of same-sign charged particles with small relative four-momentum. The size of the correlated particle emission region is seen to increase significantly with the particle multiplicity of the event.

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