Abstract
We present a model for Monte Carlo simulation of the fragmentation of a polarized quark. The model is based on string dynamics and the mechanism of quark pair creation at string breaking. The fragmentation is treated as a recursive process, where the splitting function of the subprocess depends on the spin density matrix of the quark . The mechanism is parametrized by a complex mass parameter , the imaginary part of which is responsible for single spin asymmetries. The model has been implemented in a Monte Carlo program to simulate jets made of pseudoscalar mesons. Results for single hadron and hadron pair transverse-spin asymmetries are found to be in agreement with experimental data from SIDIS and annihilation. The model predictions on the jet-handedness are also discussed.
11 More- Received 13 February 2018
DOI:https://doi.org/10.1103/PhysRevD.97.074010
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.
Published by the American Physical Society