Nuclear Physics Seminar

"Observation of a ridge in proton--proton collisions at the LHC"

Presented by Kevin Dusling, BNL

Tuesday, September 28, 2010, 11:00 am — Small Seminar Room, Bldg. 510

Last week the CMS collaboration reported on two particle correlation measurements in proton--proton collisions at a center of mass energy of 7 TeV. In high multiplicity events a new correlation structure is seen which is narrow in azimuth and long range in rapidity. This ridge--like structure is reminiscent of that observed in nucleus--nucleus collisions at RHIC.

The first half of this talk will be an overview of the two particle correlation measurements at RHIC and the LHC with an emphasis on The Ridge. The latter part of the talk will show how a description of the hadron/nuclear wave function as a Color Glass Condensate provides a natural explanation for the ridge seen in both proton--proton and nucleus--nucleus collisions.

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