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A simplified recursive ${}^3P_0$ model for the fragmentation of polarized quarks

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arxiv 1903.01736 v1 pith:DXX7RG5V submitted 2019-03-05 hep-ph

classification hep-ph
keywords modelquarksfragmentationpolarizedprogramrecursiveresultsversion
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abstract

We revisit our recursive model for the fragmentation of polarized quarks based on the string+${}^3P_0$ mechanism of $q\bar{q}$ pair creation. We make a different choice for one input function of the model that simplifies the implementation in a Monte Carlo program. No new parameters are introduced, and the relevant results are the same apart from the suppression of the spin-independent correlations between successive quarks. In addition, the present version is more suitable for an interface with external event generators. The theoretical aspects and the simulation results obtained with a stand alone program are discussed in detail and compared with those of the previous version of the model.

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  1. A model for baryon production in spin-dependent string fragmentation

    hep-ph 2025-07 conditional novelty 6.0 of 10

    By adding 5D0 diquark tunneling and baryon couplings to the string+3P0 model, the authors derive baryon splitting functions and predict quark-spin-dependent transverse effects whose signs are controlled by a new compl...

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