论文标题
$ j/ψ$生产重离子碰撞的新型微观模型
A new Microscopic Model for $J/ψ$ Production in Heavy Ion Collisions
论文作者
论文摘要
我们提出了一个新的模型，用于在超层次的重离子碰撞中创建\ j媒介，该模型允许从其创建中跟随单个重型夸克，直到通过Quark Gluon等离子体（QGP）进行检测器，该镜头在这些碰撞中形成，并由EPOS2事件生成器描述。 \ cc夸克通过晶格计算的结果通过电势相互作用。 \ j的an灭和创建是通过密度矩阵方法描述的，该方法在扩展系统中研究了时间演化。与$ \ sqrt {s} $ = 5.02 tev的PBPB数据的比较表明，该模型可以同时描述核修饰因子$ r_ {aa} $和椭圆流$ v_2 $ v_2 $ \ j \ j的低横向Momen
We present a new model for the creation of \J mesons in ultrarelativistic heavy ion collisions, which allows to follow the individual heavy quarks from their creation until the detector through the Quark Gluon Plasma (QGP), which is formed in these collisions and described by the EPOS2 event generator. The \cc quarks interact via a potential, based on results of lattice gauge calculations. The annihilation and creation of \J is described by a density matrix approach whose time evolution is studied in the expanding system. The comparison with PbPb data at $\sqrt{s}$=5.02 TeV shows that this model can describe simultaneously the nuclear modification factor $R_{AA}$ and the elliptic flow $v_2$ of the \J at low transverse momen
