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A framework for hadronic rescattering in pp collisions

Sjöstrand, Torbjörn LU orcid and Utheim, Marius LU (2020) In European Physical Journal C 80(10).
Abstract

In this article, a framework for hadronic rescattering in the general-purpose Pythia event generator is introduced. The starting point is the recently presented space–time picture of the hadronization process. It is now extended with a tracing of the subsequent motion of the primary hadrons, including both subsequent scattering processes among them and decays of them. The major new component is cross-section parameterizations for a range of possible hadron–hadron combinations, applicable from threshold energies upwards. The production dynamics in these collisions has also been extended to cope with different kinds of low-energy processes. The properties of the model are studied, and some first comparisons with LHC p p data are... (More)

In this article, a framework for hadronic rescattering in the general-purpose Pythia event generator is introduced. The starting point is the recently presented space–time picture of the hadronization process. It is now extended with a tracing of the subsequent motion of the primary hadrons, including both subsequent scattering processes among them and decays of them. The major new component is cross-section parameterizations for a range of possible hadron–hadron combinations, applicable from threshold energies upwards. The production dynamics in these collisions has also been extended to cope with different kinds of low-energy processes. The properties of the model are studied, and some first comparisons with LHC p p data are presented. Whereas it turns out that approximately half of all final particles participated in rescatterings, the net effects in p p events are still rather limited, and only striking in a few distributions. The new code opens up for several future studies, however, such as effects in p A and AA collisions.

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type
Contribution to journal
publication status
published
subject
in
European Physical Journal C
volume
80
issue
10
article number
907
publisher
Springer
external identifiers
  • scopus:85091717569
ISSN
1434-6044
DOI
10.1140/epjc/s10052-020-8399-3
language
English
LU publication?
yes
id
c7de1c31-8c77-4b28-961f-261bc6ea861a
date added to LUP
2020-10-23 13:03:31
date last changed
2024-03-20 17:05:32
@article{c7de1c31-8c77-4b28-961f-261bc6ea861a,
  abstract     = {{<p>In this article, a framework for hadronic rescattering in the general-purpose Pythia event generator is introduced. The starting point is the recently presented space–time picture of the hadronization process. It is now extended with a tracing of the subsequent motion of the primary hadrons, including both subsequent scattering processes among them and decays of them. The major new component is cross-section parameterizations for a range of possible hadron–hadron combinations, applicable from threshold energies upwards. The production dynamics in these collisions has also been extended to cope with different kinds of low-energy processes. The properties of the model are studied, and some first comparisons with LHC p p data are presented. Whereas it turns out that approximately half of all final particles participated in rescatterings, the net effects in p p events are still rather limited, and only striking in a few distributions. The new code opens up for several future studies, however, such as effects in p A and AA collisions.</p>}},
  author       = {{Sjöstrand, Torbjörn and Utheim, Marius}},
  issn         = {{1434-6044}},
  language     = {{eng}},
  number       = {{10}},
  publisher    = {{Springer}},
  series       = {{European Physical Journal C}},
  title        = {{A framework for hadronic rescattering in pp collisions}},
  url          = {{http://dx.doi.org/10.1140/epjc/s10052-020-8399-3}},
  doi          = {{10.1140/epjc/s10052-020-8399-3}},
  volume       = {{80}},
  year         = {{2020}},
}