Spectra of negative particles in Au+Au collisions from BES-I at RHIC and z-scaling
Negative particle yields in Au + Au collisions obtained by the STAR Collaboration from BES-I at RHIC are analyzed in the framework of the z-scaling approach. The spectra were measured over a wide range of collision energy sNN=7.7−200 GeV$\sqrt {{s_{NN}}} = 7.7 - 200\,{\rm{GeV}}$ and transverse mome...
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EDP Sciences
2019-01-01
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doaj-ea944e5d255e4bf89cdb191548aa54852021-08-02T10:04:10ZengEDP SciencesEPJ Web of Conferences2100-014X2019-01-012040600110.1051/epjconf/201920406001epjconf_ishepp2019_06001Spectra of negative particles in Au+Au collisions from BES-I at RHIC and z-scalingTokarev Mikhail0Kechechyan Armen1Zborovsky Imrich2Joint Institute for Nuclear ResearchJoint Institute for Nuclear ResearchNuclear Physics Institute of the CASNegative particle yields in Au + Au collisions obtained by the STAR Collaboration from BES-I at RHIC are analyzed in the framework of the z-scaling approach. The spectra were measured over a wide range of collision energy sNN=7.7−200 GeV$\sqrt {{s_{NN}}} = 7.7 - 200\,{\rm{GeV}}$ and transverse momentum of produced particles for different centralities at |η|<0.5$\left| \eta \right| \lt 0.5$. The scaling behavior of the spectra as a function of the collision energy and centrality in z-presentation is verified. The constituent energy loss in dependence on the energy and centrality of collision and transverse momentum of inclusive particle is estimated. New indication on self-similarity of fractal structure of nuclei and fragmentation process is found. A discontinuity of the model parameters - fractal and fragmentation dimensions and specific heat - is considered from the point of view of a phase transition in nuclear matter.https://www.epj-conferences.org/articles/epjconf/pdf/2019/09/epjconf_ishepp2019_06001.pdf |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Tokarev Mikhail Kechechyan Armen Zborovsky Imrich |
spellingShingle |
Tokarev Mikhail Kechechyan Armen Zborovsky Imrich Spectra of negative particles in Au+Au collisions from BES-I at RHIC and z-scaling EPJ Web of Conferences |
author_facet |
Tokarev Mikhail Kechechyan Armen Zborovsky Imrich |
author_sort |
Tokarev Mikhail |
title |
Spectra of negative particles in Au+Au collisions from BES-I at RHIC and z-scaling |
title_short |
Spectra of negative particles in Au+Au collisions from BES-I at RHIC and z-scaling |
title_full |
Spectra of negative particles in Au+Au collisions from BES-I at RHIC and z-scaling |
title_fullStr |
Spectra of negative particles in Au+Au collisions from BES-I at RHIC and z-scaling |
title_full_unstemmed |
Spectra of negative particles in Au+Au collisions from BES-I at RHIC and z-scaling |
title_sort |
spectra of negative particles in au+au collisions from bes-i at rhic and z-scaling |
publisher |
EDP Sciences |
series |
EPJ Web of Conferences |
issn |
2100-014X |
publishDate |
2019-01-01 |
description |
Negative particle yields in Au + Au collisions obtained by the STAR Collaboration from BES-I at RHIC are analyzed in the framework of the z-scaling approach. The spectra were measured over a wide range of collision energy sNN=7.7−200 GeV$\sqrt {{s_{NN}}} = 7.7 - 200\,{\rm{GeV}}$ and transverse momentum of produced particles for different centralities at |η|<0.5$\left| \eta \right| \lt 0.5$. The scaling behavior of the spectra as a function of the collision energy and centrality in z-presentation is verified. The constituent energy loss in dependence on the energy and centrality of collision and transverse momentum of inclusive particle is estimated. New indication on self-similarity of fractal structure of nuclei and fragmentation process is found. A discontinuity of the model parameters - fractal and fragmentation dimensions and specific heat - is considered from the point of view of a phase transition in nuclear matter. |
url |
https://www.epj-conferences.org/articles/epjconf/pdf/2019/09/epjconf_ishepp2019_06001.pdf |
work_keys_str_mv |
AT tokarevmikhail spectraofnegativeparticlesinauaucollisionsfrombesiatrhicandzscaling AT kechechyanarmen spectraofnegativeparticlesinauaucollisionsfrombesiatrhicandzscaling AT zborovskyimrich spectraofnegativeparticlesinauaucollisionsfrombesiatrhicandzscaling |
_version_ |
1721234275373678592 |