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 complex parameter.
A simplified recursive ${}^3P_0$ model for the fragmentation of polarized quarks
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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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A model for baryon production in spin-dependent string fragmentation
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 complex parameter.