论文标题
PP碰撞中的HADRONES拆卸框架
A Framework for Hadronic Rescattering in pp Collisions
论文作者
论文摘要
在本文中，引入了通用毕达斯（Pythia）事件生成器中的HADRONIC RECTERTARE的框架。起点是最近呈现的强丽过程时空图片。现在，它可以通过追踪原发性载体的后续运动进行扩展，包括随后的散射过程和它们的衰变。主要的新组件是针对一系列可能的强子 - 戴隆组合的横截面参数化，适用于阈值向上。这些碰撞中的生产动态也已扩展到应对不同种类的低能过程。研究了该模型的属性，并提供了与LHC PP数据的一些首次比较。事实证明，所有最终粒子的大约一半都参加了撤销，但PP事件中的净效应仍然相当有限，并且仅在一些分布中引人注目。但是，新的代码为以后的几项研究打开了，例如PA和AA碰撞中的效果。
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 pp data are presented. Whereas it turns out that approximately half of all final particles participated in rescatterings, the net effects in pp 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 pA and AA collisions.
