The ridge laboratory
arXiv:0903.5281
Abstract
Mechanisms proposed to explain the jet-related correlation of long range in rapidity (the ridge) observed in high-energy heavy-ion collisions are reviewed. Limitations of a model using the combined effect of transverse flow and a direction bias of partons suffering energy loss are discussed. The influence of the time scale of the correlation mechanism on the rapidity range is investigated.
Talk presented at 4th International Workshop High-pT physics at LHC 09, Prague, Feb. 4-7, 2009