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Recent results of strong interaction program from NA61/SHINE experiment at CERN SPS

机译:来自CENS SPS的NA61 / Shine实验的强大互动计划的最新结果

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摘要

The NA61/SHINE experiment at the CERN SPS pursues a rich program of strong interactions. The main physics goals of this program are the study of properties of the onset of deconfinement and search for the signatures of the critical point of strongly interacting matter by performing the two-dimensional scan in a broad region of energy (beam momentum 13A-158A GeV/c) and system size (p+p, Be+Be, Ar+Sc and Xe+La).Recent NA61/SHINE results on particle spectra and event-by-event fluctuations in p+p, Be+Be and Ar+Sc collisions are shown with emphasis on the measurements of particle ratios, namely of pion a strangeness production, multiplicity fluctuations versus energy and the system size of colliding nuclei.It will be shown that the hadron production properties in heavy ion collisions which change rapidly in the low SPS energy domain and are interpreted as the beginning of quark-gluon plasma production – onset of deconfinement could be also the case in inelastic p+p interactions and probably in Be+Be collisions.The paper presents a selection of NA61/SHINE results on particle production properties discussed together with existing data from the NA49 collaboration. The evolution of non-monotonic structures in the pion and strangeness production as a function of the system size and energy is addressed. The rapid change of hadron production properties from p+p and Be+Be up to Ar+Sc and Pb+Pb collisions can be interpreted as the beginning of the large clusters formation of strongly interacting matter - the onset of fireball.The NA61/SHINE strong interaction programme is presented including the recent status on proton intermittency analysis and strongly intensive fluctuation observables of particle multiplicity and transverse momentum.
机译:CERN SPS的NA61 / Shine实验追求丰富的强烈互动计划。该计划的主要物理目标是通过在广泛的能量区域中执行二维扫描来研究解构的爆炸事件的性质,并搜索强烈相互作用的临界点的签名(光束动量13a-158a gev / c)和系统尺寸(p + p,be +,ar + sc和xe + la)。重量Na61 /闪耀在p + p中的粒子光谱和事件逐次波动,be + be和ar + SC碰撞表明,重点是粒子比的测量,即易奇异的产生,多个波动与能量和碰撞核的系统尺寸。将显示重质离子碰撞中的强子生产性能,这些特性在迅速变化低SPS能量领域并被解释为夸克 - 胶质等离子体生产的开始 - 脱结的发作也可以是无弹性P + P互动的情况,可能在+是碰撞中。纸张呈现出选择NA61 /闪耀结果粒子专业人士生长属性与NA49协作的现有数据一起讨论。寻址磁场和陌生症生产中非单调结构的演变作为系统尺寸和能量的函数。来自P + P和Be +的强子生产性能的快速变化达到Ar + Sc和Pb + Pb碰撞可以被解释为大簇形成强烈相互作用的群体 - 火球的开始。Na61 /闪耀提出了强大的互动计划,包括最近的质子间歇性分析和粒子多重性的强烈波动可观察的状态和横向动量。

著录项

  • 作者

    Georgy Melkumov;

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  • 年度 2019
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  • 原文格式 PDF
  • 正文语种 eng
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