Photon-jet correlations and constraints on fragmentation functions
Photon-jet correlations and constraints on fragmentation functions
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DOI：
10.1103/physrevd.79.114024
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发表时间：
2009-03
影响因子：
5
通讯作者：
Z. Belghobsi;M. Fontannaz;J. Guillet;G. Heinrich;E.Pilon;M. Werlen
中科院分区：
文献类型：
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作者：
Z. Belghobsi;M. Fontannaz;J. Guillet;G. Heinrich;E.Pilon;M. Werlen
我们研究了质子-质子碰撞中大p {sub T}光子与喷注的产生。我们研究的敏感性喷流快度分布的胶子分布函数的质子。然后，我们评估各种光子+喷流相关观测的光子碎裂功能的灵敏度。我们认为，RHIC数据的光子喷流的相关性可以用来限制在LEP实验中几乎无法访问的区域中的光子碎裂功能。
We study the production of a large-p{sub T} photon in association with a jet in proton-proton collisions. We examine the sensitivity of the jet rapidity distribution to the gluon distribution function in the proton. We then assess the sensitivity of various photon+jet correlation observables to the photon fragmentation functions. We argue that RHIC data on photon-jet correlations can be used to constrain the photon fragmentation functions in a region which was barely accessible in LEP experiments.