A simplified recursive ${}^3{P}_0$ model for the fragmentation of polarized quarks

Abstract

We revisit our recursive model for the fragmentation of polarized quarks based on the string+${}^3{P}_0$ 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.

arXiv comment9 pages, 11 figures

References in corpus (18)

• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
• A Brief Introduction to PYTHIA 8.1
• Fragmentation of Transversely Polarized Quarks Probed in Transverse Momentum Distributions
• Single-spin asymmetries in semi-inclusive deep-inelastic scattering on a transversely polarized hydrogen target
• Single Spin Asymmetries in Charged Pion Production from Semi-Inclusive Deep Inelastic Scattering on a Transversely Polarized ${}^3$He Target
• First extraction of valence transversities in a collinear framework
• Collins and Sivers asymmetries in muonproduction of pions and kaons off transversely polarised proton
• Observation of transverse polarization asymmetries of charged pion pairs in e+e- annihilation near sqrt s=10.58 GeV
• Measurement of Collins asymmetries in inclusive production of charged pion pairs in e^+e^- annihilation at BABAR
• A high-statistics measurement of transverse spin effects in dihadron production from muon-proton semi-inclusive deep-inelastic scattering
• Measurement of azimuthal asymmetries in inclusive charged dipion production in $e^{+}{e}^{-}$ annihilations at $\sqrt{s}$ = 3.65 GeV
• Spin observables and spin structure functions: inequalities and dynamics
• Extracting the transversity distributions from single-hadron and dihadron production
• Recursive model for the fragmentation of polarized quarks
• Interplay among transversity induced asymmetries in hadron leptoproduction
• Monte Carlo Implementation of Polarized Hadronization
• Transverse momentum correlations of quarks in recursive jet models

Cited by in corpus (5)

• StringSpinner -- adding spin to the PYTHIA string fragmentation
• Production of vector mesons in the String+${}^3{P}_0$ model of polarized quark fragmentation
• The String+${}^3{P}_0$ Model of Hadronization
• Inclusion of the ${}^3{P}_0$ model in PYTHIA 8
• Simulation of the Polarized Quark Fragmentation with Vector Meson Production