Study of the helix structure of QCD string

Details Study of the helix structure of QCD string Study of the helix structure of QCD string

2012-04-12

arxiv.org/abs/1204.2655v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, 20 figures

Scientific paper

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.

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