Violation of the elliptic flow scaling of $f_0(980)$ in p-Pb collisions at the LHC
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| Main Authors: | , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866914139176173568 |
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| author | Wang, Yili Zhao, Wenbin Ko, Che Ming Guo, Feng-Kun Xie, Ju-Jun Song, Huichao |
| author_facet | Wang, Yili Zhao, Wenbin Ko, Che Ming Guo, Feng-Kun Xie, Ju-Jun Song, Huichao |
| contents | We investigate the production and elliptic flow of the $f_0(980)$ in high-multiplicity p-Pb collisions at $\sqrt{s_{NN}}=5.02$ TeV using a hadronic coalescence model with the $K$ and $\bar K$ phase-space distributions provided by the Hydro-Coal-Frag hybrid model. Our results, which agree with the ALICE and CMS measurements, support the $K\bar K$ molecular interpretation of the $f_0(980)$ structure and show, however, a breakdown of the simple number-of-constituent (NC) scaling of its elliptic flow. The latter is in contrast to the deuteron elliptic flow, which exhibits a significantly better NC scaling when the same coalescence width parameter is used. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_03637 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Violation of the elliptic flow scaling of $f_0(980)$ in p-Pb collisions at the LHC Wang, Yili Zhao, Wenbin Ko, Che Ming Guo, Feng-Kun Xie, Ju-Jun Song, Huichao Nuclear Theory Nuclear Experiment We investigate the production and elliptic flow of the $f_0(980)$ in high-multiplicity p-Pb collisions at $\sqrt{s_{NN}}=5.02$ TeV using a hadronic coalescence model with the $K$ and $\bar K$ phase-space distributions provided by the Hydro-Coal-Frag hybrid model. Our results, which agree with the ALICE and CMS measurements, support the $K\bar K$ molecular interpretation of the $f_0(980)$ structure and show, however, a breakdown of the simple number-of-constituent (NC) scaling of its elliptic flow. The latter is in contrast to the deuteron elliptic flow, which exhibits a significantly better NC scaling when the same coalescence width parameter is used. |
| title | Violation of the elliptic flow scaling of $f_0(980)$ in p-Pb collisions at the LHC |
| topic | Nuclear Theory Nuclear Experiment |
| url | https://arxiv.org/abs/2511.03637 |