Communication Dans Un Congrès Année : 2024

Modeling spin effects in electron-positron annihilation to hadrons

Résumé

The string+${}^3P_0$ model of spin-dependent hadronization is applied to the fragmentation of a string stretched between a quark and an antiquark with entangled spin states, assumed to be produced in the $e^+e^-$ annihilation process. The model accounts systematically for the spin correlations in the hadronization chain and is formulated as a recursive recipe suitable for the implementation in a Monte Carlo event generator. The recipe is applied to the production of two back-to-back pseudoscalar mesons produced in $e^+e^-$ annihilation, and it is shown to reproduce the form of the azimuthal distribution of the hadrons as expected in QCD.

Dates et versions

hal-04530865 , version 1 (03-04-2024)

Identifiants

Citer

A Kerbizi, X Artru. Modeling spin effects in electron-positron annihilation to hadrons. 20th International Conference on Hadron Spectroscopy and Structure, Jun 2023, Genova, Italy. pp.218, ⟨10.1393/ncc/i2024-24218-5⟩. ⟨hal-04530865⟩
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