论文标题
核修饰因子,来自Au+Au碰撞中的开放浓度衰减的电子的定向和椭圆流。
Nuclear modification factors, directed and elliptic flow of electrons from open heavy flavor decays in Au+Au collisions from STAR
论文作者
论文摘要
我们在$ \ sqrt {s_ {nn}} $ = 200和54.4 Gev au+au collisisions(在重量味道III中谈论III)中,介绍了半底底底部的单电子分析和魅力强体衰变。 $ \ sqrt {s_ {nn}} $ = 200 GEV的数据包含了来自重型风味跟踪器的信息,该信息可以使源自底部和魅力强体衰变的电子的拓扑分离。我们报告了第一颗星形测量值,以$ \ sqrt {s_ {nn}} $ = 200 GEV的$ v_ {2} $用于底部衰减电子的$ p_ {t} $和$ v_ {1} $的函数,用于charm decay decay电子的函数。此外,我们介绍了重量衰变电子$ r_ {aa} $的改进测量,以及对底部和符号衰减电子之间$ r_ {cp} $比率的新测量。最后,我们还报告了$ \ sqrt {s_ {nn}} $ = 54.4 GEV数据在2017年RHIC运行期间收集的GEV数据的非光子电子$ V_ {2} $的测量。
We present the analyses of single electrons from semileptonic bottom and charm hadron decays at mid-rapidity in $\sqrt{s_{NN}}$ = 200 and 54.4 GeV Au+Au collisions (talk in Heavy-Flavor session III). The data at $\sqrt{s_{NN}}$ = 200 GeV incorporate information from the Heavy Flavor Tracker which enables the topological separation of electrons originating from bottom and charm hadron decays. We report the first STAR measurements at $\sqrt{s_{NN}}$ = 200 GeV of $v_{2}$ for bottom decay electrons as a function of $p_{T}$ and $v_{1}$ for charm decay electrons as a function of electron rapidity. Additionally, we present the improved measurements of heavy-flavor decay electron $R_{AA}$ and a new measurement of the ratio of $R_{CP}$ between bottom and charm decay electrons. Finally, we also report the measurement of non-photonic electron $v_{2}$ in $\sqrt{s_{NN}}$ = 54.4 GeV data collected during the 2017 RHIC run.