arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1104.0787hep-phhep-ex
收藏

LHC能区p+p碰撞的基本事件

Underlying events in p+p collisions at LHC energies

A. G. Agócs, G. G. Barnaföldi, P. Lévai

摘要:

研究了LHC能区质子-质子碰撞中强子产生的一般性质。我们感兴趣的强子生产的特点以外的已确定的喷锥。我们改进了以前的定义,并介绍了周围的环/带周围的确定射流的圆锥。通过这种方式,甚至可以详细研究多个射流事件。我们将底层事件定义为从喷流锥和外围带中收集的强子,并研究了这些强子的特征。我们使用PYTHIA生成的质子-质子碰撞数据样本,其能量为s =(7 TeV)^2。用我们的新方法和广泛应用的CDF方法对该数据样本进行了分析。研究了角关联和动量分布,并对所得结果进行了比较和讨论。

英文摘要:

General properties of hadron production are investigated in proton-proton collisions at LHC energies. We are interested in the characteristics of hadron production outside the identified jet cones. We improve earlier definitions and introduce surrounding rings/belts around the cone of identified jets. In this way even multiple jet events can be studied in details. We define the underlying event as collected hadrons from outside jet cones and outside surrounding belts, and investigate the features of these hadrons. We use a PYTHIA generated data sample of proton-proton collisions at s = (7 TeV)^2. This data sample is analysed by our new method and the widely applied CDF method. Angular correlations and momentum distributions have been studied and the obtained results are compared and discussed.

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。

↑