Investigation of suppression of Υ (nS) in relativistic heavy-ion collisions at √sNN= 200 GeV and 5.02 TeV
The primary purpose of studying quarkonium production in relativistic heavy-ion collisions is to understand the properties of the quark-gluon plasma. At various collision systems, measurements of quarkonium states of different binding energies, such as Υ(𝑛𝑆), can provide comprehensive information....
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| Main Authors: | , , , , , , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
6 January, 2025
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| In: |
Physical review
Year: 2025, Volume: 111, Pages: 1-8 |
| ISSN: | 2469-9993 |
| DOI: | 10.1103/PhysRevC.111.014902 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevC.111.014902 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevC.111.014902 
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| Author Notes: | Junlee Kim, Jaebeom Park, Byungsik Hong, Juhee Hong, Eun-Joo Kim, Yongsun Kim, MinJung Kweon, Su Houng Lee, Sanghoon Lim, and Jinjoo Seo |
| Summary: | The primary purpose of studying quarkonium production in relativistic heavy-ion collisions is to understand the properties of the quark-gluon plasma. At various collision systems, measurements of quarkonium states of different binding energies, such as Υ(𝑛𝑆), can provide comprehensive information. A model study has been performed to investigate the modification of Υ(𝑛𝑆) production in Pb-Pb collisions at √𝑠𝑁𝑁=5.02TeV and Au-Au collisions at √𝑠𝑁𝑁=200GeV. A Monte Carlo simulation study is performed with a publicly available hydrodynamic simulation package for the quark-gluon plasma medium and a theoretical calculation of the temperature-dependent thermal width of Υ(𝑛𝑆) considering the gluodissociation and inelastic parton scattering for dissociation inside the medium. In addition, we perform a systematic study with different descriptions of initial collision geometry and formation time of Υ(𝑛𝑆) to investigate their impacts on yield modification. The model calculation with a varied parameter set can describe the experimental data of Υ(𝑛𝑆) in Pb-Pb collisions at 5.02 TeV and Υ(2𝑆) in Au-Au collisions at 200 GeV but underestimates the modification of Υ(1𝑆) at the lower collision energy. The nuclear absorption mechanism is explored to understand the discrepancy between the data and simulation. |
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| Item Description: | Im Titel steht der Ausdruck "sNN" unter dem Wurzelsymbol Gesehen am 04.08.2025 |
| Physical Description: | Online Resource |
| ISSN: | 2469-9993 |
| DOI: | 10.1103/PhysRevC.111.014902 |