Adding quark spin effects to PYTHIA string fragmentation
(2022) 41st International Conference on High Energy Physics, ICHEP 2022 414.- Abstract
Quark spin effects in hadronization have been recently included in the PYTHIA 8 event generator for the simulation of the deep inelastic scattering (DIS) process off a polarized nucleon target via the external StringSpinner package. The spin effects can be simulated for the production of pseudoscalar mesons using the string+3P0 model of polarized quark fragmentation and parametrizations of the transversity PDFs. We present here a major development of StringSpinner which includes the production of vector mesons in the polarized PYTHIA 8 string fragmentation as well as their polarized decays. The package is validated and used to simulate the transverse-spin asymmetries in semi-inclusive DIS (SIDIS). The simulation... (More)
Quark spin effects in hadronization have been recently included in the PYTHIA 8 event generator for the simulation of the deep inelastic scattering (DIS) process off a polarized nucleon target via the external StringSpinner package. The spin effects can be simulated for the production of pseudoscalar mesons using the string+3P0 model of polarized quark fragmentation and parametrizations of the transversity PDFs. We present here a major development of StringSpinner which includes the production of vector mesons in the polarized PYTHIA 8 string fragmentation as well as their polarized decays. The package is validated and used to simulate the transverse-spin asymmetries in semi-inclusive DIS (SIDIS). The simulation results on the Collins and dihadron asymmetries for the final state mesons are compared with the asymmetries measured in SIDIS off transversely polarized protons. Also shown are the predictions for the Collins asymmetries for p mesons produced in SIDIS off transversely polarized protons.
(Less)
- author
- Kerbizi, Albi
LU
and Lönnblad, Leif
LU
- organization
- publishing date
- 2022
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- host publication
- Proceedings of Science
- volume
- 414
- article number
- 831
- publisher
- Sissa Medialab srl
- conference name
- 41st International Conference on High Energy Physics, ICHEP 2022
- conference location
- Bologna, Italy
- conference dates
- 2022-07-06 - 2022-07-13
- external identifiers
-
- scopus:85149909093
- language
- English
- LU publication?
- yes
- id
- fb6eae42-d947-4a71-8b11-0ef8bb6c5fac
- date added to LUP
- 2023-04-04 11:08:23
- date last changed
- 2023-04-04 11:22:44
@inproceedings{fb6eae42-d947-4a71-8b11-0ef8bb6c5fac, abstract = {{<p>Quark spin effects in hadronization have been recently included in the PYTHIA 8 event generator for the simulation of the deep inelastic scattering (DIS) process off a polarized nucleon target via the external StringSpinner package. The spin effects can be simulated for the production of pseudoscalar mesons using the string+<sup>3</sup>P<sub>0</sub> model of polarized quark fragmentation and parametrizations of the transversity PDFs. We present here a major development of StringSpinner which includes the production of vector mesons in the polarized PYTHIA 8 string fragmentation as well as their polarized decays. The package is validated and used to simulate the transverse-spin asymmetries in semi-inclusive DIS (SIDIS). The simulation results on the Collins and dihadron asymmetries for the final state mesons are compared with the asymmetries measured in SIDIS off transversely polarized protons. Also shown are the predictions for the Collins asymmetries for p mesons produced in SIDIS off transversely polarized protons.</p>}}, author = {{Kerbizi, Albi and Lönnblad, Leif}}, booktitle = {{Proceedings of Science}}, language = {{eng}}, publisher = {{Sissa Medialab srl}}, title = {{Adding quark spin effects to PYTHIA string fragmentation}}, volume = {{414}}, year = {{2022}}, }