论文标题
$γ$+jet和$π^{0} $+juter au+au collisions的$ \ sqrt {s _ {\ mathrm {nn}}} $ = 200 gev的$ \ sqrt {s _ {s _ {s _ {
Measurement of $γ$+jet and $π^{0}$+jet in central Au+Au collisions at $\sqrt{s_{\mathrm{NN}}}$ = 200 GeV with the STAR experiment
论文作者
论文摘要
我们介绍了从Direct-Photon中后退的带电喷气机的半度性测量和$ \ sqrt {s _ {s _ {\ Mathrm {nn}}} $ = 200 Gev的$ \ sqrt {s _ {s _ {s _ {s _ {由Star实验在2014年录制。在9 GEV和20 GEV之间，选择了thepon和$π^{0} $触发器。带有抗$ k _ {\ mathrm {t}} $算法的抗$ k _ {resolution参数r = 0.2和0.5的电荷喷气机。先前由Star开发的混合事件技术用于校正不相关背景的后坐力射流产量，从而在广泛的$ \ rm p_ {t，jet} $范围内实现后坐力测量。我们报告了完全校正后的电荷射流产生的直接光子和$π^{0} $触发的上述两个喷气式射流触发器，并讨论了顶部RHIC能量中中型parton能量损失的射流R依赖性。
We present the semi-inclusive measurement of charged jets recoiling from direct-photon and $π^{0}$ triggers in central Au+Au collisions at $\sqrt{s_{\mathrm {NN}}}$ = 200 GeV, using a dataset with integrated luminosity 13 $\mathrm {nb^{-1}}$ recorded by the STAR experiment in 2014. The photon and $π^{0}$ triggers are selected within transverse energy ($\rm E_\mathrm{T}^\mathrm{trig}$) between 9 GeV and 20 GeV. Charged jets are reconstructed with the anti-$k_{\mathrm{T}}$ algorithm with resolution parameters R = 0.2 and 0.5. A Mixed-Event technique developed previously by STAR is used to correct the recoil jet yield for uncorrelated background, enabling recoil jet measurements over a broad $\rm p_{T,jet}$ range. We report fully corrected charged-jet yields recoiling from direct-photon and $π^{0}$ triggers for the above two jet radii and also discuss the jet R dependence of in-medium parton energy loss at the top RHIC energy.
