论文标题
在$ \ sqrt {s_ {nn}} = 2.4 $ gev
Directed, elliptic and higher order flow harmonics of protons, deuterons and tritons in Au+Au collisions at $\sqrt{s_{NN}} = 2.4$ GeV
论文作者
论文摘要
订单的流量系数$ v_ {n} $ $ n = 1-6 $是用GSI的高接受度二元光谱仪(HADE)来测量的,用于质子,迪特龙和tritons,是Au+Au CollisionS $ \ sqrt collisions in au+au collisions的中心性,横向动量和快速性的功能。将所有顺序的流程中的信息结合在一起,可以在几个GEV的碰撞能量上首次构造这些粒子的角发射模式的多差异图片。它反映了中央火球压力对颗粒排放的影响与它们随后与观众物质的相互作用之间的复杂相互作用。关于高阶流量系数的高精度信息是限制密集的重型物质状态方程的主要一步。
Flow coefficients $v_{n}$ of the orders $n = 1 - 6$ are measured with the High-Acceptance DiElectron Spectrometer (HADES) at GSI for protons, deuterons and tritons as a function of centrality, transverse momentum and rapidity in Au+Au collisions at $\sqrt{s_{NN}} = 2.4$ GeV. Combining the information from the flow coefficients of all orders allows to construct for the first time, at collision energies of a few GeV, a multi-differential picture of the angular emission pattern of these particles. It reflects the complicated interplay between the effect of the central fireball pressure on the emission of particles and their subsequent interaction with spectator matter. The high precision information on higher order flow coefficients is a major step forward in constraining the equation-of-state of dense baryonic matter.