COMPASS 上介子-核子散射中的双 $J/\psi$ 产生
高能物理 - 实验
2023-02-08 v1 高能物理 - 唯象学
摘要
我们展示利用 COMPASS 数据研究双 介子产生的成果，该数据由 190 GeV/ 的 束流打在 NH、Al 和 W 靶上收集得到。我们分析了所收集双 事件的运动学分布，并估算了 COMPASS 各靶上的双 产生截面。结果与单部分子散射和双部分子散射模型的预言以及介子内禀粲夸克和四夸克奇异共振假设进行了比较。结果表明，单部分子散射产生机制占主导贡献，足以描述数据。我们给出了介子双内禀粲含量的上限。在双 质量谱中未发现可与奇异四夸克相关联的显著信号。
引用
@article{arxiv.2204.01817,
title = {Double $J/\psi$ production in pion-nucleon scattering at COMPASS},
author = {G. D. Alexeev and M. G. Alexeev and A. Amoroso and V. Andrieux and V. Anosov and K. Augsten and W. Augustyniak and C. D. R. Azevedo and B. Badelek and M. Ball and J. Barth and R. Beck and Y. Bedfer and J. Bernhard and M. Bodlak and F. Bradamante and A. Bressan and V. E. Burtsev and W. -C. Chang and C. Chatterjee and M. Chiosso and A. G. Chumakov and S. -U. Chung and A. Cicuttin and P. M. M. Correia and M. L. Crespo and D. D'Ago and S. Dalla Torre and S. S. Dasgupta and S. Dasgupta and I. Denisenko and O. Yu. Denisov and S. V. Donskov and N. Doshita and Ch. Dreisbach and W. Duennweber and R. R. Dusaev and A. Efremov and D. Eremeev and P. D. Eversheim and P. Faccioli and M. Faessler and M. Finger and M. Finger and H. Fischer and K. Floethner and W Florian and C. Franco and J. M. Friedrich and V. Frolov and L. G. Garcia Ordonez and F. Gautheron and O. P. Gavrichtchouk and S. Gerassimov and J. Giarra and D. Giordano and M. Gorzellik and A. Grasso and A. Gridin and S. Groote and M. Grosse Perdekamp and B. Grube and M. Gruener and A. Guskov and D. von Harrach and M. Hoffmann and N. Horikawa and N. d'Hose and C. -Y. Hsieh and S. Huber and S. Ishimoto and A. Ivanov and T. Iwata and M. Jandek and T. Jary and R. Joosten and E. Kabuss and F. Kaspar and A. Kerbizi and B. Ketzer and A. Khatun and G. V. Khaustov and Yu. A. Khokhlov and F. Klein and J. H. Koivuniemi and V. N. Kolosov and K. Kondo Horikawa and I. Konorov and V. F. Konstantinov and A. Korzenev and S. Koshkarev and A. M. Kotzinian and O. M. Kouznetsov and A. Koval and Z. Kral and F. Krinner and F. Kunne and K. Kurek and R. P. Kurjata and A. Kveton and K. Lavickova and S. Levorato and Y. -S. Lian and J. Lichtenstadt and P. -J. Lin and R. Longo and V. E. Lyubovitskij and A. Maggiora and A. Magnon and N. Makins and N. Makke and G. K. Mallot and A. Maltsev and S. A. Mamon and A. Martin and J. Marzec and J. Matousek and T. Matsuda and G. Mattson and C. Menezes Pires and F. Metzger and M. Meyer and W. Meyer and Yu. V. Mikhailov and M. Mikhasenko and E. Mitrofanov and Y. Miyachi and R. Molina and A. Moretti and A. Nagaytsev and C. Naim and D. Neyret and J. Novy and W. -D. Nowak and G. Nukazuka and A. G. Olshevsky and M. Ostrick and D. Panzieri and B. Parsamyan and S. Paul and H. Pekeler and J. -C. Peng and M. Pesek and D. V. Peshekhonov and M. Peskova and S. Platchkov and J. Pochodzalla and V. A. Polyakov and J. Pretz and M. Quaresma and C. Quintans and G. Reicherz and C. Riedl and T. Rudnicki and D. I. Ryabchikov and A. Rychter and A. Rymbekova and V. D. Samoylenko and A. Sandacz and S. Sarkar and I. A. Savin and G. Sbrizzai and S. Schmeing and H. Schmieden and A. Selyunin and K. Sharko and L. Sinha and M. Slunecka and D. Spuelbeck and A. Srnka and D. Steffen and M. Stolarski and O. Subrt and M. Sulc and H. Suzuki and S. Tessaro and F. Tessarotto and A. Thiel and J. Tomsa and F. Tosello and A. Townsend and T. Triloki and V. Tskhaty and B. Valinoti and B. M. Veit and J. F. C. A. Veloso and B. Ventura and M. Virius and M. Wagner and S. Wallner and K. Zaremba and M. Zavertyaev and M. Zemko and E. Zemlyanichkina and M. Ziembicki},
journal= {arXiv preprint arXiv:2204.01817},
year = {2023}
}
备注
12 pages, 4 figures