Issue |
EPJ Web Conf.
Volume 126, 2016
4th International Conference on New Frontiers in Physics
|
|
---|---|---|
Article Number | 04018 | |
Number of page(s) | 7 | |
Section | Parallel | |
DOI | https://doi.org/10.1051/epjconf/201612604018 | |
Published online | 04 November 2016 |
https://doi.org/10.1051/epjconf/201612604018
Production of non-photonic electrons in U+U collisions at √sNN = 193 GeV at the STAR experiment
Czech Technical University in Prague, Faculty of Nuclear Sciences and Physical Engineering, Břehová 7, 115 19 Prague 1, Czech Republic
a e-mail: katka.gajdosova19@gmail.com
Published online: 4 November 2016
Heavy quarks are suitable probes to study the properties of Quark-Gluon Plasma (QGP), a strongly interacting medium, which can be created in ultrarelativistic heavy-ion collisions at the Relativistic Heavy Ion Collider (RHIC). Non-photonic electrons (NPE) that originate from semileptonic decays of D and B mesons can serve as a good proxy for heavy flavor quarks. Nuclear modification factor RAA of NPE is measured in heavy-ion collisions, which is sensitive to the effect of QGP on heavy quarks.
Measurements of NPE RAA in Au+Au collisions at √sNN = 200 GeV reveal that NPE production is strongly suppressed. In year 2012 STAR collected data from U+U collisions at √sNN = 193 GeV. In most central collisions higher energy density can be achieved in comparison to collisions of gold nuclei. In this proceedings the preliminary results on NPE in 0-5% most central U+U collisions at a transverse momentum range 1.2 < pT < 6 GeV/c are presented. The nuclear modification factor in U+U collisions is compared to that in Au+Au collisions and theoretical models.
© The Authors, published by EDP Sciences, 2016
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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