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arXiv 1005.2801nucl-exhep-ex
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用PHENIX探测器测量sqrt(s)= 200 GeV的p + p碰撞喷流碎裂

Measurement of jet fragmentation in p + p collision at sqrt(s) = 200 GeV with the PHENIX detector

Yue-shi Lai

摘要:

p + p碰撞中喷注碎裂特性的测量为研究夸克-胶子等离子体存在下可能的、修正的碎裂行为提供了重要的基线。我们描述了在RHIC的sqrt(s)= 200 GeV的p + p碰撞喷流碎裂函数的第一次测量。这是促进由高能量和核实验所采用的线性最小二乘展开技术的多维光谱,这使我们能够纠正在探测器,如PHENIX遇到的射流能量响应的低效率。

英文摘要:

Measurement of jet fragmentation property in p + p collisions provides a crucial baseline for the study of a possible, modified fragmentation behavior at the presence of the quark-gluon plasma. We describe the first measurement of jet fragmentation functions in sqrt(s) = 200 GeV p + p collisions at RHIC. This is facilitated by extending the linear least square unfolding technique employed by high energy and nuclear experiments to multidimensional spectra, which allows us to correct the inefficiencies in the jet energy response encountered at detectors such as PHENIX.

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