Abstract
Baryon production is studied within the framework of quantized fragmentation of a QCD string. Baryons appear in the model in a fairly intuitive way, with the help of causally connected string breakups. A simple helical approximation of a QCD flux tube with parameters constrained by a mass spectrum of light mesons is sufficient to reproduce masses of light baryons.
Highlights
The idea to model the confinement with help of a helical string has been proposed by Lund theorists in [1]
A causal approach to the ordering of string breakup vertices reveals that the mass spectrum of light hadrons corresponds to breaking of string in pieces with a quantized phase difference [2]
Since the measurement of these intrinsic transverse momenta is conditioned by the precision with which the axis of the generating QCD string can be determined, the measurement is not expected to improve the precision of constraints derived from the hadron mass spectrum and from the measurement of correlations between hadrons as described above
Summary
The idea to model the confinement with help of a helical string has been proposed by Lund theorists in [1]. A causal approach to the ordering of string breakup vertices reveals that the mass spectrum of light hadrons corresponds to breaking of string in pieces with a quantized (helix) phase difference [2]. A detailed description of the qg → qqqinteraction is not included, which means the model is blind to the mass difference between charged and neutral pions; this is essentially setting the limit of the precision of predictions at the level of ∼3%. Such a precision is comparable with the precision of experimental measurements of correlations between adjacent hadrons and is sufficient for the purpose of the current study.
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