1.23A GeV 中心 Au+Au 碰撞中的相同 π 介子强度干涉测量
核实验
2019-07-02 v4
摘要
我们研究 1.23A GeV 中心 Au+Au 碰撞中的相同 π 介子 HBT 强度干涉。利用 HADES 在 SIS18/GSI 上测量了高统计量的 与 数据。由依赖于纵向共动系中相对动量并参数化为三维高斯分布的关联函数导出的半径参数，作为横动量的函数被研究。发现了源半径的显著电荷符号差异，尤其在低横动量下表现明显。提取的库仑修正源参数与较高能量下建立的质心能量依赖性的平滑外推吻合良好，将相应的激发函数向下扩展至极低能量。因此，我们的数据更倾向于排除低能区半径参数存在任何强能量依赖性的可能。
引用
@article{arxiv.1811.06213,
title = {Identical pion intensity interferometry in central Au+Au collisions at 1.23A 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. Böhmer and P. Bordalo and S. Chernenko and L. Chlad 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. Fröhlich and T. Galatyuk and J. A. Garzon and R. Gernhäuser 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 B. W. Kolb and G. Korcyl and G. Kornakov and R. Kotte and W. Kühn 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. 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. Müntz and R. Münzer and L. Naumann and K. N. 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 S. Ramos and B. Ramstein and A. Reshetin and P. Rodriguez-Ramos and P. Rosier and A. Rost 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 J. Siebenson and L. Silva and Yu. G. Sobolev and S. Spataro and H. Ströbele 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:1811.06213},
year = {2019}
}
备注
7 pages, 5 figures, updated author and grant lists