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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