论文标题
喷气形状和碎片作用在SQRT（SNN）= 200 GEV的Au+Au碰撞中起作用。
Jet shapes and fragmentation functions in Au+Au collisions at sqrt(sNN) = 200 GeV in STAR
论文作者
论文摘要
Star协作报告了差异喷射形状和半含量的喷气片段化在Au+Au碰撞中的测量值，$ \ sqrt {s _ {\ Mathrm {nn}}} = $ 200 GEV，与RHIC的Star Detector一起。射流形状代表成分携带的动量的径向分布，对（1）带电的颗粒横向动量和（2）相对于二阶事件平面而言，（2）射流方位角。基于高横向动量触发强体后退的半喷射量，测量了40-60％的中央重离子碰撞中的喷气碎片化功能，并将其与Pythia模拟中的PP碰撞相比。
The STAR Collaboration reports measurements of differential jet shapes and semi-inclusive jet fragmentation functions in Au+Au collisions at $\sqrt{s_{\mathrm{NN}}}=$ 200 GeV with the STAR detector at RHIC. Jet shapes, which represent the radial distribution of momentum carried by constituents, are measured differentially for (1) the charged particles transverse momentum and (2) the jet azimuthal angle relative to the second-order event plane. Based on the semi-inclusive population of jets recoiling from a high transverse momentum trigger hadron, jet fragmentation functions in 40-60% central heavy-ion collisions are measured, and compared to those in PYTHIA simulations for pp collisions.
