"Fig1" of "Medium modification of jet fragmentation in Au+Au collisions at sqrt(s_NN)=200 GeV measured in direct photon-hadron correlations"
メタデータ
- 公開日
- 2020-01-01
- DOI
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- 10.17182/hepdata.95877.v1/t1
- 公開者
- HEPData
- データ作成者 (e-Rad)
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- PHENIX Collaboration
説明
BNL-RHIC. The jet fragmentation function is measured with direct photon-hadron correlations inp+pandAu+Au collisions at√sNN= 200 GeV. ThepTof the photon is an excellent approximation to theinitialpTof the jet and the ratiozT=phT/pγTis used as a proxy for the jet fragmentation function.A statistical subtraction is used to extract the direct photon-hadron yields in Au+Au collisionswhile a photon isolation cut is applied inp+p.IAA, the ratio of jet fragment yield in Au+Au tothat inp+p, indicates modification of the jet fragmentation function.Suppression, most likely dueto energy loss in the medium, is seen at highzT. The fragment yield at lowzTis enhanced at largeangles. Such a trend is expected from redistribution of the lost energy into increased production oflow-momentum particles.
Direct photon-hadron pair per-trigger yields vs Delta-phi (Au+Au and p+p)