How to Improve UrQMD Model to Describe NA61/SHINE Experimental Data

The NA61/SHINE collaboration measured inclusive cross sections of pi+ and pi- meson production in the interactions of 31 GeV/c proton with carbon nuclei at small emission angles (0 - 420 mrad). The collaboration presented also predictions of Monte Carlo models - FLUKA, VENUS and UrQMD, in a comparis...

Descripción completa

Detalles Bibliográficos
Autor principal: Uzhinsky, V.
Lenguaje:eng
Publicado: 2011
Materias:
Particle Physics - Phenomenology
Acceso en línea:http://cds.cern.ch/record/1364288
_version_ 1780922736696098816
author Uzhinsky, V.
author_facet Uzhinsky, V.
author_sort Uzhinsky, V.
collection CERN
description The NA61/SHINE collaboration measured inclusive cross sections of pi+ and pi- meson production in the interactions of 31 GeV/c proton with carbon nuclei at small emission angles (0 - 420 mrad). The collaboration presented also predictions of Monte Carlo models - FLUKA, VENUS and UrQMD, in a comparison with the data. The worst description of the data was observed for UrQMD model results. In the present paper it is shown that the drawback of the UrQMD model is connected with an inaccurate treatment of low mass string fragmentation. The strings appeared at a diffraction of target nucleons. A simple patch is proposed to overcome the problem.
id cern-1364288
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2011
record_format invenio
spelling cern-13642882023-03-15T19:12:20Zhttp://cds.cern.ch/record/1364288engUzhinsky, V.How to Improve UrQMD Model to Describe NA61/SHINE Experimental DataParticle Physics - PhenomenologyThe NA61/SHINE collaboration measured inclusive cross sections of pi+ and pi- meson production in the interactions of 31 GeV/c proton with carbon nuclei at small emission angles (0 - 420 mrad). The collaboration presented also predictions of Monte Carlo models - FLUKA, VENUS and UrQMD, in a comparison with the data. The worst description of the data was observed for UrQMD model results. In the present paper it is shown that the drawback of the UrQMD model is connected with an inaccurate treatment of low mass string fragmentation. The strings appeared at a diffraction of target nucleons. A simple patch is proposed to overcome the problem.The NA61/SHINE collaboration measured inclusive cross sections of pi+ and pi- meson production in the interactions of 31 GeV/c proton with carbon nuclei at small emission angles (0 - 420 mrad). The collaboration presented also predictions of Monte Carlo models - FLUKA, VENUS and UrQMD, in a comparison with the data. The worst description of the data was observed for UrQMD model results. In the present paper it is shown that the drawback of the UrQMD model is connected with an inaccurate treatment of low mass string fragmentation. The strings appeared at a diffraction of target nucleons. A simple patch is proposed to overcome the problem.arXiv:1107.0374oai:cds.cern.ch:13642882011-07-05
spellingShingle Particle Physics - Phenomenology
Uzhinsky, V.
How to Improve UrQMD Model to Describe NA61/SHINE Experimental Data
title How to Improve UrQMD Model to Describe NA61/SHINE Experimental Data
title_full How to Improve UrQMD Model to Describe NA61/SHINE Experimental Data
title_fullStr How to Improve UrQMD Model to Describe NA61/SHINE Experimental Data
title_full_unstemmed How to Improve UrQMD Model to Describe NA61/SHINE Experimental Data
title_short How to Improve UrQMD Model to Describe NA61/SHINE Experimental Data
title_sort how to improve urqmd model to describe na61/shine experimental data
topic Particle Physics - Phenomenology
url http://cds.cern.ch/record/1364288
work_keys_str_mv AT uzhinskyv howtoimproveurqmdmodeltodescribena61shineexperimentaldata

Ejemplares similares