Collider Cross Talk

Quarkonia Production in pPb collisions from ALICE-LHCb

by Roberta Arnaldi (Universita e INFN (IT)) , Michael Schmelling (Max-Planck-Gesellschaft (DE))

4-2-011 - TH common room (CERN)

4-2-011 - TH common room


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Measurements of charmonium and bottomonium production in pPb collisions with a nucleon-nucleon centre-of-mass energy of 5 TeV by the ALICE and LHCb collaborations are presented. The aim is to extract information about cold nuclear matter effects affecting signatures for the formation of a quark gluon plasma in heavy ion collisions, which requires as input the production cross-section for quarkonia in pp collisions at 5 TeV, where no data exist. Experimental results obtained for the various resonance states will be presented and issues related to the cross-section interpolation will be discussed. Finally, the comparison with theoretical predictions based on cold nuclear matter effects as shadowing, as well as on models including a contribution from partonic energy loss will also be addressed, together with the implications these pPb results may have for the interpretation of quarkonium behaviour in PbPb collisions.
ALICE Results
Common Results
LHCb Results
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