The ridge in proton–proton collisions at the LHC

• DOI: 10.1016/j.physletb.2011.01.024
• Publication Date: 2011-01-20T04:31:03Z
• Authors: Adrian Dumitru; Kevin Dusling; François Gelis; Jamal Jalilian-Ma...; Tuomas Lappi; Raju Venugopalan
• Keywords: Nuclear Theory (nucl-th); High Energy Physics - Phenomenology; High Energy Physics - Experiment (hep-ex); High Energy Physics - Phenomenology (hep-ph); ta114; Nuclear Theory; 0103 physical sciences; FOS: Physical sciences; 01 natural sciences; High Energy Physics - Experiment

6 pages, 7 figures, ReVTEX4; v2: modified fig.5 to indicate momentum flow, added references<br/>We show that the key features of the CMS result on the ridge correlation seen for high multiplicity events in sqrt(s)=7TeV proton-proton collisions at the LHC can be understood in the Color Glass Condensate framework of high energy QCD. The same formalism underlies the explanation of the ridge events seen in A+A collisions at RHIC, albeit it is likely that flow effects may enhance the magnitude of the signal in the latter.<br/>