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arXiv 0911.1909hep-ph
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多部分子相互作用和再散射

Multiparton Interactions and Rescattering

Richard Corke, Torbjörn Sjöstrand

摘要:

强子事件中多重部分子相互作用的概念对于理解最小偏差和基础事件物理都是至关重要的。然而,这一领域的研究相当少,目前的模型提供了一个远远不完整的覆盖范围,即使是我们知道应该存在的影响。在这篇文章中,我们解决这样一个话题,即再散射,其中一个已经散射的部分子被允许参加另一个随后的散射。介绍了一个框架的再散射的Pythia 8事件发生器,并完全集成了正常的多部分子相互作用和初始和最终状态的辐射。使用这个模型,事件结构的影响进行了研究,并显示了最小偏差和喷流事件的分布。

英文摘要:

The concept of multiple partonic interactions in hadronic events is vital for the understanding of both minimum-bias and underlying-event physics. The area is rather little studied, however, and current models offer a far from complete coverage, even of the effects we know ought to be there. In this article we address one such topic, namely that of rescattering, where an already scattered parton is allowed to take part in another subsequent scattering. A framework for rescattering is introduced for the Pythia 8 event generator and fully integrated with normal multiparton interactions and initial- and final-state radiation. Using this model, the effects on event structure are studied, and distributions are shown both for minimum-bias and jet events.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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