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arXiv 0710.3207hep-ex
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提取自旋之谜中的胶子片:STAR的新包含喷流结果

Extracting the Gluon Piece of the Spin Puzzle: New Inclusive Jet Results from STAR

STAR Collaboration, Renee Fatemi

摘要:

本文介绍了2005年RHIC运行期间在sqrt(s)=200 GeV的纵向极化质子碰撞中收集的3 pb^-1数据的最新中快度包含喷流结果。与现有的次领先阶微扰QCD计算相比,包含喷流的不对称性a_LL增加了横向动量范围和精度,对胶子螺旋度分布提供了强有力的约束。

英文摘要:

This contribution presents the most recent mid-rapidity inclusive jet results from 3 pb^-1 of data collected from longitudinally polarized proton collisions at sqrt(s)=200 GeV during the 2005 RHIC run. The inclusive jet asymmetry, a_LL, with it's increased transverse momentum range and precision, provides strong constraints on the gluon helicity distribution when compared with existing next-to-leading order perturbative QCD evaluations.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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