论文标题
使用Bateman方程计算重离子碰撞中炭分解和重组反应的速率
Calculating the rates of charmonium dissociation and recombination reactions in heavy-ion collisions using Bateman equation
论文作者
论文摘要
炭态具有不同的结合能和半径在相对论重离子碰撞中产生的培养基的不同温度下溶解。炭的相对产率，因此它们的存活率具有映射夸克gluon血浆的特性。在这项研究中，我们估算了质量筛选，Gluon诱导的解离和重组对重型离子碰撞（PB+PB离子）在质量能量中心（$ \ sqrt {s _ {\ rm nn}}} $）= 5.02 tev的联合作用。分离和重组的速率方程将通过二维加速火球体积分别溶解。为了求解重组率方程，我们使用了Bateman溶液的方法，该方法可确保QGP培养基中重组炭的解离。在扩展的QGP中估计了炭状态的修改，其条件与LHC的PB+PB碰撞有关。
The charmonium states with their different binding energies and radii dissolve at different temperatures of the medium produced in relativistic heavy-ion collisions. Relative yields of charmonium and thus their survival have potential to map the properties of Quark Gluon Plasma. In this study, we estimate the combined effect of color screening, gluon-induced dissociation and recombination on charmonium production in heavy-ion collisions (Pb+Pb ions) at centre of mass energy ($\sqrt{s_{\rm NN}}$) = 5.02 TeV. The rate equations of dissociation and recombination are solved separately with a 2-dimensional accelerated expansion of fireball volume. To solve the recombination rate equation, we have used an approach of Bateman solution which ensures the dissociation of the recombined charmonium in the QGP medium. The modifications of charmonium states are estimated in an expanding QGP with the conditions relevant for Pb+Pb collisions at LHC.
