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The Proton-Ømega correlation function in Au+Au collisions at √sNN = 200 GeV

Adam, Jaroslav ; Galatyuk, Tetyana ; Seck, Florian
ed.: STAR Collaboration (2019)
The Proton-Ømega correlation function in Au+Au collisions at √sNN = 200 GeV.
In: Physics Letters B, 790
doi: 10.1016/j.physletb.2019.01.055
Article, Bibliographie

Abstract

We present the first measurement of the proton–Ω correlation function in heavy-ion collisions for the central (0–40%) and peripheral (40–80%) Au + Au collisions at √sNN GeV by the STAR experiment at the Relativistic Heavy-Ion Collider (RHIC). Predictions for the ratio of peripheral collisions to central collisions for the proton–Ω correlation function are sensitive to the presence of a nucleon–Ω bound state. These predictions are based on the proton–Ω interaction extracted from (2+1) -flavor lattice QCD calculations at the physical point. The measured ratio of the proton–Ω correlation function between the peripheral (small system) and central (large system) collisions is less than unity for relative momentum smaller than 40 MeV/c. Comparison of our measured correlation ratio with theoretical calculation slightly favors a proton–Ω bound system with a binding energy of ∼ 27 MeV.

Item Type: Article
Erschienen: 2019
Creators: Adam, Jaroslav ; Galatyuk, Tetyana ; Seck, Florian
Type of entry: Bibliographie
Title: The Proton-Ømega correlation function in Au+Au collisions at √sNN = 200 GeV
Language: English
Date: 10 March 2019
Publisher: Elsevier
Journal or Publication Title: Physics Letters B
Volume of the journal: 790
DOI: 10.1016/j.physletb.2019.01.055
Abstract:

We present the first measurement of the proton–Ω correlation function in heavy-ion collisions for the central (0–40%) and peripheral (40–80%) Au + Au collisions at √sNN GeV by the STAR experiment at the Relativistic Heavy-Ion Collider (RHIC). Predictions for the ratio of peripheral collisions to central collisions for the proton–Ω correlation function are sensitive to the presence of a nucleon–Ω bound state. These predictions are based on the proton–Ω interaction extracted from (2+1) -flavor lattice QCD calculations at the physical point. The measured ratio of the proton–Ω correlation function between the peripheral (small system) and central (large system) collisions is less than unity for relative momentum smaller than 40 MeV/c. Comparison of our measured correlation ratio with theoretical calculation slightly favors a proton–Ω bound system with a binding energy of ∼ 27 MeV.

Divisions: 05 Department of Physics
05 Department of Physics > Institute of Nuclear Physics
05 Department of Physics > Institute of Nuclear Physics > Experimentelle Kernphysik
05 Department of Physics > Institute of Nuclear Physics > Experimentelle Kernphysik > Untersuchung von Quark-Materie mit virtuellen Photonen
Date Deposited: 09 Nov 2023 11:29
Last Modified: 14 Dec 2023 11:53
PPN: 514079290
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