论文标题
通过相对论核冲突来限制原子核的四极核变形
Constraining the quadrupole deformation of atomic nuclei with relativistic nuclear collisions
论文作者
论文摘要
明星合作在BNL相对论重离子碰撞器上的初步数据表明，椭圆流，$ v_2 $和平均横向动量，$ \ langle p_t \ rangle $，是最终状态的hadrons，它是由高质量$^{238} $+$ u+$ u+u+u+us^{238} $ collisation neg collisation fim-multiplicity $该观察结果带来了在碰撞$^{238} $ u核中，具有显着倾斜变形的实验证据，约为0.3 $。我表明，在重离子碰撞的流体动力框架内可以实现对这种新现象的定量描述，因此，在高能核实验的背景下，这种数据可以帮助限制碰撞物种的四倍变形。
Preliminary data by the STAR collaboration at the BNL Relativistic Heavy Ion Collider shows that the elliptic flow, $v_2$, and the average transverse momentum, $\langle p_t \rangle$, of final-state hadrons produced in high-multiplicity $^{238}$U+$^{238}$U collisions are negatively correlated. This observation brings experimental evidence of a significant prolate deformation, $β\approx 0.3$, in the colliding $^{238}$U nuclei. I show that a quantitative description of this new phenomenon can be achieved within the hydrodynamic framework of heavy-ion collisions, and that thus such kind of data in the context of high-energy nuclear experiments can help constrain the quadrupole deformation of the colliding species.
