Measurements of the Υ Meson Production in Au + Au Collisions by the STAR Experiment†
Czech Technical University in Prague, 115 19 Praha, Czech Republic
†
Presented at Hot Quarks 2018-Workshop for Young Scientists on the Physics of Ultrarelativistic Nucleus-Nucleus Collisions, Texel, The Netherlands, 7–14 September 2018.
Proceedings 2019, 10(1), 46; https://doi.org/10.3390/proceedings2019010046
Published: 5 May 2019
(This article belongs to the Proceedings of Hot Quarks 2018—Workshop for Young Scientists on the Physics of Ultrarelativistic Nucleus-Nucleus Collisions)
In ultra-relativistic heavy-ion collisions, creation of a novel state of matter, the quark-gluon plasma (QGP), has been observed. Suppressed production of quarkonia, caused by the colour screening of the binding force, has been proposed as a direct evidence of the QGP formation. At RHIC energies, other phenomena such as the regeneration and co-mover absorption, are expected to have a small effect for the bottomonium family, which makes a cleaner probe of the screening effect compared to the meson. In these proceedings, the latest measurements of the production suppression in Au + Au collisions at GeV via the di-muon and di-electron decay channels by the STAR experiment at RHIC are presented and compared with data from the LHC and theoretical calculations. Moreover, production measurements in p + p and p + Au collisions are also reported, providing a baseline and a quantification of the cold nuclear matter effects, respectively.
Keywords:
upsilon; quarkonium suppression; STAR
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MDPI and ACS Style
Matonoha, O., , on behalf of the STAR collaboration; Measurements of the Υ Meson Production in Au + Au Collisions by the STAR Experiment. Proceedings 2019, 10, 46. https://doi.org/10.3390/proceedings2019010046
AMA Style
Matonoha O , on behalf of the STAR collaboration. Measurements of the Υ Meson Production in Au + Au Collisions by the STAR Experiment. Proceedings. 2019; 10(1):46. https://doi.org/10.3390/proceedings2019010046
Chicago/Turabian StyleMatonoha, Oliver , on behalf of the STAR collaboration. 2019. "Measurements of the Υ Meson Production in Au + Au Collisions by the STAR Experiment" Proceedings 10, no. 1: 46. https://doi.org/10.3390/proceedings2019010046
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