HERA 上光生与深度非弹性 $\boldsymbol{ep}$ 散射中的方位角关联
高能物理 - 实验
2022-05-24 v3 核实验
摘要
利用 HERA 上的 ZEUS 探测器，在质心能量 GeV 的高多重数 散射中研究了末态强子的集体行为与多部分子相互作用。测量了带电粒子多重数 下的二粒子与四粒子方位角关联，以及多重数、横动量及赝快度分布。二粒子关联对交换光子虚度的依赖清晰地显示了从光生到中性流深度非弹性散射的过渡。在所研究的多重数下，光生过程与中性流深度非弹性散射中的测量均未显示出在 RHIC 和 LHC 的高多重数强子碰撞中所观测到的那种显著集体行为。PYTHIA 预测与光生测量的比较强烈表明，交换光子的强子涨落中存在多部分子相互作用。
引用
@article{arxiv.2106.12377,
title = {Azimuthal correlations in photoproduction and deep inelastic $\boldsymbol{ep}$ scattering at HERA},
author = {ZEUS collaboration and I. Abt and R. Aggarwal and V. Aushev and O. Behnke and A. Bertolin and I. Bloch and I. Brock and N. H. Brook and R. Brugnera and A. Bruni and P. J. Bussey and A. Caldwell and C. D. Catterall and J. Chwastowski and J. Ciborowski and R. Ciesielski and A. M. Cooper-Sarkar and M. Corradi and R. K. Dementiev and S. Dusini and J. Ferrando and S. Floerchinger and B. Foster and E. Gallo and D. Gangadharan and A. Garfagnini and A. Geiser and L. K. Gladilin and Y. A. Golubkov and G. Grzelak and C. Gwenlan and D. Hochman and N. Z. Jomhari and I. Kadenko and U. Karshon and P. Kaur and R. Klanner and U. Klein and I. A. Korzhavina and N. Kovalchuk and M. Kuze and B. B. Levchenko and A. Levy and B. Löhr and E. Lohrmann and A. Longhin and F. Lorkowski and O. Y. Lukina and I. Makarenko and J. Malka and S. Masciocchi and K. Nagano and J. D. Nam and J. Onderwaater and Y. Onishchuk and E. Paul and I. Pidhurskyi and A. Polini and M. Przybycien and A. Quintero and M. Ruspa and U. Schneekloth and T. Schörner-Sadenius and I. Selyuzhenkov and M. Shchedrolosiev and L. M. Shcheglova and I. O. Skillicorn and W. Słomiński and A. Solano and L. Stanco and N. Stefaniuk and B. Surrow and K. Tokushuku and O. Turkot and T. Tymieniecka and A. Verbytskyi and W. A. T. Wan Abdullah and K. Wichmann and M. Wing and S. Yamada and Y. Yamazaki and A. F. Zarnecki and O. Zenaiev},
journal= {arXiv preprint arXiv:2106.12377},
year = {2022}
}
备注
27 pages, 9 figures. Additional material included as an ancillary file for this arXiv entry