用STAR端盖量热计测量sqrt{s}=200 GeV极化pp碰撞中的光子喷注符合
Photon-jet coincidence measurements in polarized pp collisions at sqrt{s}=200 GeV with the STAR Endcap Calorimeter
摘要:
最近在RHIC对极化质子-质子碰撞的包容性测量提供了对极化胶子分布的重要限制,Delta g(x),在胶子动量范围0.02 < x < 0.3上积分。双射流和光子-射流符合测量将允许研究Δ g(x)的x依赖性。在这份报告中,我们提出了光子喷流符合研究的状态,在前向赝快度,1.08<eta<2,使用STAR端盖量热计检测到的光子。
英文摘要:
Recent inclusive measurements with polarized proton-proton collisions at RHIC provide significant constraints on the polarized gluon distribution, Delta g(x), integrated over the gluon momentum range 0.02 < x < 0.3. Di-jet and photon-jet coincidence measurements will allow to study the x-dependence of Delta g(x). In this report we present the status of photon-jet coincidence studies for photons detected at forward pseudorapidity, 1.08<eta<2, using the STAR Endcap Calorimeter.
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