تقرير
Investigation of suppression of $\Upsilon(nS)$ in relativistic heavy-ion collisions at RHIC and LHC energies
| العنوان: | Investigation of suppression of $\Upsilon(nS)$ in relativistic heavy-ion collisions at RHIC and LHC energies |
|---|---|
| المؤلفون: | Kim, Junlee, Park, Jaebeom, Hong, Byungsik, Hong, Juhee, Kim, Eun-Joo, Kim, Yongsun, Kweon, MinJung, Lee, Su Houng, Lim, Sanghoon, Seo, Jinjoo |
| سنة النشر: | 2024 |
| المجموعة: | Nuclear Experiment Nuclear Theory |
| مصطلحات موضوعية: | Nuclear Theory, Nuclear Experiment |
| الوصف: | 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 $\Upsilon(nS)$, can provide comprehensive information. A model study has been performed to investigate the modification of $\Upsilon(nS)$ production in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=$ 5.02 TeV and Au-Au collisions at $\sqrt{s_{\mathrm{NN}}}=$ 200 GeV. The Monte-Carlo simulation study is performed with a publicly available hydrodynamic simulation package for the quark-gluon plasma medium and a theoretical calculation of temperature-dependent thermal width of $\Upsilon(nS)$ considering the gluo-dissociation 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 $\Upsilon(nS)$ to investigate their impacts on yield modification. The model calculation with a varied parameter set can describe the experimental data of $\Upsilon(nS)$ in Pb-Pb collisions at 5.02 TeV and $\Upsilon(2S)$ in Au-Au collisions at 200 GeV but underestimates the modification of $\Upsilon(1S)$ at the lower collision energy. The nuclear absorption mechanism is explored to understand the discrepancy between the data and simulation. Comment: 9 pages, 11 figures |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2405.11689 |
| رقم الأكسشن: | edsarx.2405.11689 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |