Can baryon stopping be understood within a hadronic transport approach

  • The changing shape of the rapidity spectrum of net protons over the SPS energy range is still lacking theoretical understanding. In this work, a model for string excitation and string fragmentation is implemented for the description of high energy collisions within a hadronic transport approach. The free parameters of the string model are tuned to reproduce the experimentally measured particle production in proton-proton collisions. With the fixed parameters we advance to calculations for heavy ion collisions, where the shape of the proton rapidity spectrum changes from a single peak to a double peak structure with increasing beam energy in the experiment. We present calculations of proton rapidity spectra at different SPS energies in heavy ion collisions. Qualitatively, a good agreement with the experimental findings is obtained. In a future work, the formation process of string fragments will be studied in detail aiming to quantitatively reproduce the measurement.

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Metadaten
Author:Justin MohsORCiD, Sangwook RyuORCiD, Hannah ElfnerORCiDGND
URN:urn:nbn:de:hebis:30:3-515470
DOI:https://doi.org/10.3390/proceedings2019010002
Parent Title (English):Proceedings
Document Type:Conference Proceeding
Language:English
Year of Completion:2019
Year of first Publication:2019
Publishing Institution:Universit├Ątsbibliothek Johann Christian Senckenberg
Release Date:2019/10/22
Tag:baryon stopping; hadron transport; string fragmentation
Volume:10
Issue:2
Page Number:1
Note:
This is an open access article distributed under the Creative Commons Attribution License https://creativecommons.org/licenses/by/4.0/ which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
HeBIS-PPN:455244936
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Sammlungen:Universit├Ątspublikationen
Licence (German):License LogoCreative Commons - Namensnennung 4.0