论文标题
从NICA到HE LHC山脉的相对论核冲突中的无界对生产
Bound-free pair production in relativistic nuclear collisions from the NICA to the HE LHC colliders
论文作者
论文摘要
我们考虑了相对论重离子碰撞中的电子峰值对产生的产生，其中产生的电子是由一个核之一捕获的，因此，在形成氢 - 样离子的形成中。这些离子从碰撞点出现，撞到超导磁体内的真空腔室壁。因此，此过程对于光束寿命和淬火磁铁的问题可能很重要。提出了从NICA到HE LHC的围栏上的这种无界对生产（BFPP）的理论研究。我们获得了该过程总横截面的近似通用公式。我们将其与可用的数值计算结果进行了比较，并估计我们的计算准确性大于NICA撞机的能量，并且在RHIC和HE LHC乘客的范围内占几个百分之几的顺序。根据获得的结果，对NICA对撞机的将来进行了详细的计算。我们发现，Au $^{79+} $ - au $^{79+} $和bi $^{83+} $ - bi $ $^{83+} $碰撞的预期bfpp横截面几个mbarn的范围。
We consider the electron-positron pair production in relativistic heavy ion collisions, in which the produced electron is captured by one of the nuclei resulting, thus, in the formation of a hydrogen--like ion. These ions emerge from the collision point and hit the vacuum chamber wall inside superconducting magnets. Therefore, this process may be important for the problems of beam life time and for the quenching the irradiated magnet. A theoretical investigation for such a bound-free pair production (BFPP) at the colliders from NICA to HE LHC is presented. We obtain an approximate universal formula for the total cross section of the process. We compare it with the results of available numerical calculations and estimate that an accuracy of our calculations is better than $30$ % at the energies of the NICA collider and becomes of the order of a few percent for the RHIC and HE LHC colliders. Based on the obtained results, the detailed calculations are performed for future experiments at the NICA collider. We find that the expected BFPP cross sections for the Au$^{79+}$-Au$^{79+}$ and Bi$^{83+}$-Bi$^{83+}$ collisions are in the range from $10$ to $70$ barn, while for the p-Au$^{79+}$ and p-Bi$^{83+}$ collisions they are in the range of a few mbarn.
