Journal
PHYSICS LETTERS B
Volume 726, Issue 1-3, Pages 344-346Publisher
ELSEVIER
DOI: 10.1016/j.physletb.2013.08.066
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Funding
- Department of Energy [DE-AC02-76SF00515]
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The CMS Collaboration at the LHC has reported a remarkable and unexpected phenomenon in very high-multiplicity high energy proton-proton collisions: a positive correlation between two particles produced at similar azimuthal angles, spanning a large range in rapidity. We suggest that this ridge-like correlation may be a reflection of the rare events generated by the collision of aligned flux tubes connecting the valence quarks in the wave functions of the colliding protons. The spray of particles resulting from the approximate line source produced in such inelastic collisions then gives rise to events with a strong correlation between particles produced over a large range of both positive and negative rapidity. We suggest an additional variable that is sensitive to such a line source which is related to a commonly used measure, ellipticity. (C) 2013 Elsevier B.V. All rights reserved.
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