Ratios of strange hadrons to pions in collisions of large and small nuclei

Abstract The dependence of particle production on the size of the colliding nuclei is analyzed in terms of the thermal model using the canonical ensemble. The concept of strangeness correlation in clusters of sub-volume $$V_c$$ V c is used to account for the suppression of strangeness. A systematic...

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Main Authors: H. Oeschler, J. Cleymans, B. Hippolyte, K. Redlich, N. Sharma
Format: Article
Language:English
Published: SpringerOpen 2017-09-01
Series:European Physical Journal C: Particles and Fields
Online Access:http://link.springer.com/article/10.1140/epjc/s10052-017-5177-y
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author H. Oeschler
J. Cleymans
B. Hippolyte
K. Redlich
N. Sharma
author_facet H. Oeschler
J. Cleymans
B. Hippolyte
K. Redlich
N. Sharma
author_sort H. Oeschler
collection DOAJ
description Abstract The dependence of particle production on the size of the colliding nuclei is analyzed in terms of the thermal model using the canonical ensemble. The concept of strangeness correlation in clusters of sub-volume $$V_c$$ V c is used to account for the suppression of strangeness. A systematic analysis is presented of the predictions of the thermal model for particle production in collisions of small nuclei. The pattern of the maxima of strange-particles-to-pion ratios as a function of beam energy is quite special, as they do not occur at the same beam energy and are sensitive to the system size. In particular, the $$\Lambda /\pi ^+$$ Λ / π + ratio shows a clear maximum even for small systems while the maximum in the $$K^+/\pi ^+$$ K + / π + ratio is less pronounced in small systems.
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spelling doaj.art-21854843a5084bbabc882a4740cdb0282022-12-21T20:31:29ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522017-09-017791510.1140/epjc/s10052-017-5177-yRatios of strange hadrons to pions in collisions of large and small nucleiH. Oeschler0J. Cleymans1B. Hippolyte2K. Redlich3N. Sharma4Physikalisches Institut, Ruprecht-Karls-Universität HeidelbergUCT-CERN Research Centre and Department of Physics, University of Cape TownInstitut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg, CNRS-IN2P3Institute of Theoretical Physics, University of WrocławDepartment of Physics, Panjab UniversityAbstract The dependence of particle production on the size of the colliding nuclei is analyzed in terms of the thermal model using the canonical ensemble. The concept of strangeness correlation in clusters of sub-volume $$V_c$$ V c is used to account for the suppression of strangeness. A systematic analysis is presented of the predictions of the thermal model for particle production in collisions of small nuclei. The pattern of the maxima of strange-particles-to-pion ratios as a function of beam energy is quite special, as they do not occur at the same beam energy and are sensitive to the system size. In particular, the $$\Lambda /\pi ^+$$ Λ / π + ratio shows a clear maximum even for small systems while the maximum in the $$K^+/\pi ^+$$ K + / π + ratio is less pronounced in small systems.http://link.springer.com/article/10.1140/epjc/s10052-017-5177-y
spellingShingle H. Oeschler
J. Cleymans
B. Hippolyte
K. Redlich
N. Sharma
Ratios of strange hadrons to pions in collisions of large and small nuclei
European Physical Journal C: Particles and Fields
title Ratios of strange hadrons to pions in collisions of large and small nuclei
title_full Ratios of strange hadrons to pions in collisions of large and small nuclei
title_fullStr Ratios of strange hadrons to pions in collisions of large and small nuclei
title_full_unstemmed Ratios of strange hadrons to pions in collisions of large and small nuclei
title_short Ratios of strange hadrons to pions in collisions of large and small nuclei
title_sort ratios of strange hadrons to pions in collisions of large and small nuclei
url http://link.springer.com/article/10.1140/epjc/s10052-017-5177-y
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AT bhippolyte ratiosofstrangehadronstopionsincollisionsoflargeandsmallnuclei
AT kredlich ratiosofstrangehadronstopionsincollisionsoflargeandsmallnuclei
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