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Possible scenarios for soft and semi-hard components structure in central hadron-hadron collisions in the TeV region: pseudo-rapidity intervals

机译:TeV区域中强子-强子碰撞中软和半硬组件结构的可能情况:伪快速间隔

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摘要

Continuing previous work on collective variables properties in full phase space in hadron-hadron collisions in the TeV region our investigation is extended to multiplicity distributions and clan structure analysis in pseudo-rapidity intervals. Total multiplicity distributions (MDs) are considered also here as the weighted superposition of soft and semi-hard components, and described by Pascal(NB)MD. The soft component is characterised by KNO and Feynman scaling behaviour in all scenarios which differ in the semi-hard component properties only. In fact, the semi-hard component has been supposed to satisfy, in scenario 1, KNO and Feynman scaling behaviour and to violate it strongly in scenario 2. A third possibility has been explored: it is a QCD inspired scenario and leads to expectations intermediate between the just mentioned two. The semi-hard component structure becomes dominant in the TeV energy domain, a huge mini-jet production is indeed the main phenomenon in this region. In addition a new species of clans is generated suggesting a phase transition in the clan production in scenarios 2 and 3. Our results can be compared with Tevatron and LHC experimental data when available.
机译:在TeV区域强子-强子碰撞中,在全相空间中的集合变量属性上继续进行先前的工作,我们的研究扩展到伪快速区间中的多重性分布和氏族结构分析。总重数分布(MD)在这里也被视为软和半硬分量的加权叠加,由Pascal(NB)MD进行描述。在所有情况下,软组件的特征在于KNO和Feynman缩放行为,这些情况仅在半硬组件属性上有所不同。实际上,在场景1中,应该假设半硬成分可以满足KNO和Feynman缩放行为,而在场景2中则强烈违反它。第三种可能性已经被探索:这是QCD激发的场景,导致期望中等。刚提到的两个之间。半硬组分结构在TeV能量域中占主导地位,巨大的微型喷气机产量确实是该区域的主要现象。此外,还产生了新的氏族物种,表明在方案2和方案3中氏族生产发生了相变。可以将我们的结果与Tevatron和LHC实验数据进行比较。

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