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arXiv 2210.01593hep-ph
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在LHC能pp碰撞中观察到的粲-重子增强中基础事件的作用

The role of the underlying event in the charm-baryon enhancement observed in pp collisions at LHC energies

Zoltán Varga, Anett Misák, Róbert Vértesi

摘要:

我们研究了LHC能区质子-质子碰撞中$Λ_c$粲重子相对于粲$D^0$介子的增强产生。我们用PYTHIA 8 MC发生器中的增强色重联模型模拟了碰撞事件,并提出了基于比较使用不同事件活动分类器的测量方法,以确定粲重子增强的来源。我们证明,在这种增强的颜色重联的情况下,过剩的生产主要是与潜在的事件,而不是生产的高动量射流。

英文摘要:

We study the enhanced production of $Λ_c$ charmed baryons relative to that of charmed $D^0$ mesons in proton-proton collisions at LHC energies. We simulated collision events with the enhanced color-reconnection model in PYTHIA 8 MC generator and propose measurements based on the comparative use of different event-activity classifiers to identify the source of the charmed-baryon enhancement. We demonstrate that in this enhanced color-reconnection scenario the excess production is primarily linked to the underlying event and not to the production of high-momentum jets.

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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