In this article, a framework for hadronic rescattering in the general-purpose Pythia event generator is introduced. The starting point is the recently presented space–time picture of the hadronization process. It is now extended with a tracing of the subsequent motion of the primary hadrons, including both subsequent scattering processes among them and decays of them. The major new component is cross-section parameterizations for a range of possible hadron–hadron combinations, applicable from threshold energies upwards. The production dynamics in these collisions has also been extended to cope with different kinds of low-energy processes. The properties of the model are studied, and some first comparisons with LHC \(\mathrm {p}\mathrm {p}\) data are presented. Whereas it turns out that approximately half of all final particles participated in rescatterings, the net effects in \(\mathrm {p}\mathrm {p}\) events are still rather limited, and only striking in a few distributions. The new code opens up for several future studies, however, such as effects in \(\mathrm {p}\)A and AA collisions.

本文介绍了通用Pythia事件生成器中强子散射的框架。起点是最近展示的强铁化过程的时空图。现在通过追踪主要强子的后续运动对其进行扩展，包括它们之间的后续散射过程以及它们的衰变。主要的新组成部分是对一系列可能的强子-强子组合的横截面参数化，可从阈值能量向上应用。这些碰撞中的生产动态也已扩展，以应对不同类型的低能耗过程。研究了模型的性质，并与LHC \（\ mathrm {p} \ mathrm {p} \）进行了一些首次比较呈现数据。事实证明，所有最终粒子中大约有一半参与了散射，但是\（\ mathrm {p} \ mathrm {p} \）事件中的净效应仍然相当有限，并且仅出现了一些分布。新代码为将来的一些研究打开了大门，例如\（\ mathrm {p} \） A和AA冲突中的影响。