Probe initial parton density and formation time via jet quenching

被引：13

作者：

Wang, XN ^{[1
]}

机构：

[1] Univ Calif Berkeley, Lawrence Berkeley Lab, Nucl Sci Div MS 70R0319, Berkeley, CA 94720 USA

来源：

NUCLEAR PHYSICS A | 2003年 / 715卷

关键词：

D O I：

10.1016/S0375-9474(02)01486-0

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Medium modification of jet fragmentation function due to multiple scattering and induced gluon radiation leads directly to jet quenching or suppression of leading particle distribution from jet fragmentation. One can extract an effective total parton energy loss which can be related to the total transverse momentum broadening. For an expanding medium, both are shown to be sensitive to the initial parton density and formation time. Therefore, one can extract both initial parton density and formation time from simultaneous measurements of parton energy loss and transverse momentum broadening. Implication of the recent experimental data on effects of detailed balance in parton energy loss is also discussed.

引用

页码：775C / 778C

页数：4

共 12 条

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