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
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.
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