Modified fragmentation function and jet quenching at RHIC

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Medium modification of jet fragmentation functions and parton energy loss in cold and hot matter are reviewed. The predicted nuclear modification of the jet fragmentation function agrees well with the recent HERMES data with a resultant energy loss dE/dx {approx} 0.5 GeV/fm. From the recent PHENIX data of high p{sub T} pi{sub 0} spectra in central Au+Au collisions at {radical}s=130 GeV, one extracts an energy loss for a 10 GeV parton that is equivalent to dE/dx=7.3 GeV/fm in a static medium with the same gluon density as in the initial stage of the collision at tau{sub 0}=0.2 fm/c. Constraints on ... continued below

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Wang, Xin-Nian June 2, 2001.

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Medium modification of jet fragmentation functions and parton energy loss in cold and hot matter are reviewed. The predicted nuclear modification of the jet fragmentation function agrees well with the recent HERMES data with a resultant energy loss dE/dx {approx} 0.5 GeV/fm. From the recent PHENIX data of high p{sub T} pi{sub 0} spectra in central Au+Au collisions at {radical}s=130 GeV, one extracts an energy loss for a 10 GeV parton that is equivalent to dE/dx=7.3 GeV/fm in a static medium with the same gluon density as in the initial stage of the collision at tau{sub 0}=0.2 fm/c. Constraints on jet quenching by the central rapidity density of charged hadrons is also discussed.

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INIS; OSTI as DE00799666

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  • International Conference on Statistical QCD, Bielefeld (DE), 08/26/2001--08/30/2001

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  • Report No.: LBNL--51282
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 799666
  • Archival Resource Key: ark:/67531/metadc733432

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  • June 2, 2001

Added to The UNT Digital Library

  • Oct. 19, 2015, 7:39 p.m.

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  • April 4, 2016, 4:21 p.m.

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Wang, Xin-Nian. Modified fragmentation function and jet quenching at RHIC, article, June 2, 2001; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc733432/: accessed August 16, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.