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arXiv 0912.4233hep-ph
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Pythia8中引力子和非粒子的实发射和虚交换

Real Emission and Virtual Exchange of Gravitons and Unparticles in Pythia8

S. Ask, I. V. Akin, L. Benucci, A. De Roeck, M. Goebel, J. Haller

摘要:

在对撞机实验中,由于引力子和非粒子的实发射或虚交换,具有大额外维的模型以及非粒子模型可能会引起新的现象。在本文中,我们提出了这些过程中的Monte Carlo生成器Pythia8的共同实现,使用两个模型的参数之间的关系。该计划提供了几个选项有关的治疗紫外线区域的有效理论,包括使用形状因子的运行引力耦合的可能性。使用Pythia8获得的特征结果已用于验证实现以及说明模型参数的关键特征和影响。本文的结果主要集中在LHC的单喷流、双光子和双轻子末态。

英文摘要:

Models with large extra dimensions as well as unparticle models could give rise to new phenomena at collider experiments due to real emission or virtual exchange of gravitons or unparticles. In this paper we present the common implementation of these processes in the Monte Carlo generator Pythia8, using relations between the parameters of the two models. The program offers several options related to the treatment of the UV region of the effective theories, including the possibility of using a form factor for the running gravitational coupling. Characteristic results obtained with Pythia8 have been used to validate the implementations as well as to illustrate the key features and effects of the model parameters. The results presented in this paper are focused on mono-jet, di-photon and di-lepton final states at the LHC.

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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