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Title: Possible multiparticle ridge-like correlations in very high multiplicity proton–proton collisions

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.
Authors:
; ;
Publication Date:
OSTI Identifier:
1090329
Report Number(s):
SLAC-PUB--15352
Journal ID: ISSN 0370-2693; arXiv:1308.1435
DOE Contract Number:
AC02-76SF00515
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics Letters. Section B; Journal Volume: 726; Journal Issue: 1-3
Publisher:
Elsevier
Research Org:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS Phenomenology-HEP; HEPPH