核物质中隐奇异与开奇异强子的强吸收
核实验
2019-07-17 v1
摘要
我们借助HADES在SIS18/GSI上研究的入射束动量为1.7 GeV/c的π-诱发C和W靶反应，首次观测到核物质内K-与φ的吸收。双比值(K-/K+)W / (K-/K+)C为0.319 ± 0.009(stat)+0.014-0.012(syst)，表明相较于较轻靶，K-在较重靶中的吸收更强。在HADES接收度内测得的π-+C与π-+W反应中的φ/K-比值分别为(syst)与(syst)。两种不同反应中测得的相似比值首次从实验上表明，核介质中φ介子的动力学与K-动力学强耦合。在C与W核上φ产生的大差异从强φN介质内耦合的角度进行了讨论。
引用
@article{arxiv.1812.03728,
title = {Strong absorption of hadrons with hidden and open strangeness in nuclear matter},
author = {J. Adamczewski-Musch and O. Arnold and E. T. Atomssa 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 S. Chernenko and L. Chlad and P. Chudoba and I. Ciepal and C. Deveaux and D. Dittert and J. Dreyer and A. Dybczak and E. Epple and L. Fabbietti and O. Fateev 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 C. Höhne and R. Holzmann and A. Ierusalimov and A. Ivashkin and B. Kämpfer and B. Kardan and I. Koenig and W. Koenig and B. W. Kolb and G. Korcyl and G. Kornakov and F. Kornas and R. Kotte and J. Kubos 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 S. Linev and L. Lopes and M. Lorenz and T. Mahmoud and L. Maier and A. Malige and J. Markert and S. Maurus and V. Metag and J. Michel and D. M. Mihaylov and V. Mikhaylov and S. Morozov and C. Müntz and R. Münzer and L. Naumann and K. Nowakowsk and Y. Parpottas and V. Pechenov and O. Pechenova and O. Petukhov and J. Pietraszko and A. P. Prozorov and W. Przygoda and B. Ramstein and A. Reshetin and P. Rodriguez-Ramos and A. Rost and A. Sadovsky and P. Salabura and T. Scheib and K. Schmidt-Sommerfeld and H. Schuldes and E. Schwab and F. Scozzi and F. Seck and P. Sellheim and J. Siebenson and L. Silva and J. Smyrski and S. Spataro and S. Spies 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 C. Ungethüm and O. Vazquez Doce and V. Wagner and C. Wendisch and M. G. Wiebusch and J. Wirth and Y. Zanevsky and P. Zumbruch},
journal= {arXiv preprint arXiv:1812.03728},
year = {2019}
}
备注
6 pages, 3 figures