Au+Au 碰撞在 $\mathbf{\sqrt{s_{NN}}}$ = 2.4$\mathbf{GeV}$ 下的带电π介子产生
核实验
2020-10-28 v2
摘要
我们给出了 Au+Au 碰撞在 = 2.4 GeV（对应于 = 1.23 A GeV）下带电π介子发射的高统计量数据，数据涵盖最中心碰撞 0–40 范围内的四个中心度类别。数据作为横向动量、横向质量、快度和极角的函数进行分析。每个参与核子的π介子多重数随中心度增加适度下降。即使是最中心事件类，其极角分布也发现是非各向同性的。我们关于π介子多重数的结果很好地符合世界数据的整体趋势，但比 FOPI 实验在略低束流能量下测得的数据低 。我们将我们的数据与最先进的输运模型计算（PHSD、IQMD、PHQMD、GiBUU 和 SMASH）进行比较，发现测量结果与这些计算结果之间存在显著差异。
引用
@article{arxiv.2005.08774,
title = {Charged pion production in $\mathbf{Au+Au}$ collisions at $\mathbf{\sqrt{s_{NN}}}$ = 2.4$\mathbf{GeV}$},
author = {J. Adamczewski-Musch and O. Arnold and C. Behnke and A. Belounnas and A. Belyaev and J. C. Berger-Chen and J. Biernat and A. Blanco and C. Blume and M. Boehmer and P. Bordalo and S. Chernenko and L. Chlad and I. Ciepal and C. Deveaux and J. Dreyer and A. Dybczak and E. Epple and L. Fabbietti and O. Fateev and P. Filip and P. Fonte and C. Franco and J. Friese and I. Froehlich and T. Galatyuk and J. A. Garzon and R. Gernhaeuser and S. Glaessel and M. Golubeva and R. Greifenhagen and F. Guber and M. Gumberidze and S. Harabasz and T. Heinz and T. Hennino and S. Hlavac and C. Höhne and R. Holzmann and A. Ierusalimov and A. Ivashkin and B. Kämpfer and T. Karavicheva and B. Kardan and I. Koenig and W. Koenig and M. Kohls and B. W. Kolb and G. Korcyl and G. Kornakov and F. Kornas and R. Kotte and A. Kugler and T. Kunz and A. Kurepin and A. Kurilkin and P. Kurilkin and V. Ladygin and R. Lalik and K. Lapidus and A. Lebedev and L. Lopes and M. Lorenz and T. Mahmoud and L. Maier and A. Malige and A. Mangiarotti and J. Markert and T. Matulewicz and S. Maurus and V. Metag and J. Michel and D. M. Mihaylov and S. Morozov and C. Muentz and R. Muenzer and L. Naumann and K. Nowakowski and M. Palka and Y. Parpottas and V. Pechenov and O. Pechenova and O. Petukhov and K. Piasecki and J. Pietraszko and W. Przygoda and K. Pysz and S. Ramos and B. Ramstein and A. Reshetin and P. Rodriguez-Ramos and N. Rathod and P. Rosier and A. Rost and A. Rustamov and A. Sadovsky and P. Salabura and T. Scheib and H. Schuldes and E. Schwab and F. Scozzi and F. Seck and P. Sellheim and I. Selyuzhenkov and J. Siebenson and L. Silva and U. Singh and J. Smyrski and Yu. G. Sobolev and S. Spataro and S. Spies and H. Stroebele and J. Stroth and P. Strzempek and C. Sturm and O. Svoboda and M. Szala and P. Tlusty and M. Traxler and H. Tsertos and E. Usenko and V. Wagner and C. Wendisch and M. G. Wiebusch and J. Wirth and D. Wojcik and Y. Zanevsky and P. Zumbruch},
journal= {arXiv preprint arXiv:2005.08774},
year = {2020}
}
备注
17 pages, 19 figures, 4 tables