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| Format: | Preprint |
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2025
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| Online Access: | https://arxiv.org/abs/2512.13377 |
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| _version_ | 1866908712815296512 |
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| author | Islam, Ajaharul |
| author_facet | Islam, Ajaharul |
| contents | We study bottomonium dynamics in a momentum-space anisotropic quark-gluon plasma (QGP) using the quantum trajectories (QTraj) framework. The real part of the heavy-quark potential is obtained from a minimal extension of the Karsch-Mehr-Satz (KMS) potential, while the angle-averaged imaginary part is derived to leading order in the anisotropy parameter $ξ$ and modeled to interpolate smoothly between the small- and large -$ξ$ regimes. The resulting anisotropic complex potential is used to solve the real-time Schrödinger equation using QTraj for the evolution of bottomonium in heavy-ion collisions. Nuclear modification factors $R_{AA}$, double ratios, and elliptic flow coefficients $v_2$ for the $Υ(1S)$, $Υ(2S)$, and $Υ(3S)$ states are computed, including feed-down contributions, in Pb-Pb collisions at $\sqrt{s_{NN}} = 5.02 \, \text{TeV}$. The QTraj-Aniso predictions successfully reproduce the observed sequential suppression pattern and non-zero elliptic flow, showing good agreement with experimental measurements from the ALICE, ATLAS, and CMS collaborations and demonstrating the relevance of path-length dependent suppression and medium anisotropy in quarkonium phenomenology. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_13377 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Bottomonium suppression and elliptic flow in an anisotropic quark-gluon plasma using the quantum trajectories method Islam, Ajaharul High Energy Physics - Phenomenology We study bottomonium dynamics in a momentum-space anisotropic quark-gluon plasma (QGP) using the quantum trajectories (QTraj) framework. The real part of the heavy-quark potential is obtained from a minimal extension of the Karsch-Mehr-Satz (KMS) potential, while the angle-averaged imaginary part is derived to leading order in the anisotropy parameter $ξ$ and modeled to interpolate smoothly between the small- and large -$ξ$ regimes. The resulting anisotropic complex potential is used to solve the real-time Schrödinger equation using QTraj for the evolution of bottomonium in heavy-ion collisions. Nuclear modification factors $R_{AA}$, double ratios, and elliptic flow coefficients $v_2$ for the $Υ(1S)$, $Υ(2S)$, and $Υ(3S)$ states are computed, including feed-down contributions, in Pb-Pb collisions at $\sqrt{s_{NN}} = 5.02 \, \text{TeV}$. The QTraj-Aniso predictions successfully reproduce the observed sequential suppression pattern and non-zero elliptic flow, showing good agreement with experimental measurements from the ALICE, ATLAS, and CMS collaborations and demonstrating the relevance of path-length dependent suppression and medium anisotropy in quarkonium phenomenology. |
| title | Bottomonium suppression and elliptic flow in an anisotropic quark-gluon plasma using the quantum trajectories method |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2512.13377 |