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arXiv 1204.2655hep-ph
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QCD串螺旋结构的研究

Study of the helix structure of QCD string

Sharka Todorova

摘要:

本文在Lund碎裂模型的背景下研究了螺旋状QCD弦的性质,其中胶子场的三维结构的概念为强子横动量的模型化提供了另一种途径。本文着重于该模型的唯象性,它介绍了强子的横向和纵向分量之间的相关性,以及强子沿弦的方位角排序。指出了螺旋弦结构产生的2粒子关联与通常归因于玻色-爱因斯坦干涉的2粒子关联之间的相似性。结果表明,密切的强子对的生产中观察到的带电不对称性可以与弦分裂的时空历史中的波动,并与共振强子态的存在。

英文摘要:

The properties of a helix-like shaped QCD string are studied in the context of the Lund fragmentation model, where the concept of a 3-dimensional structure of the gluon field offers an alternative aproach to the modelling of the transverse momentum of hadrons. The paper is focused on the phenomenology of the model, which introduces correlations between transverse and longitudinal components of hadrons, as well as azimuthal ordering of hadrons along the string. The similarities between 2-particle correlations stemming from the helix-string structure and those commonly attributed to the Bose-Einstein interference are pointed out. It is shown that the charged assymetry observed in the production of close hadron pairs can be associated with fluctuations in the space-time history of the string breakup, and with the presence of resonant hadronic states.

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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