Is $K_{1}/K^{*}$ enhancement in heavy ion collisions a signature of chiral symmetry restoration?
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2023
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| _version_ | 1866913328416161792 |
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| author | Sung, Haesom Cho, Sungtae Ko, Che Ming Lee, Su Houng Lim, Sanghoon |
| author_facet | Sung, Haesom Cho, Sungtae Ko, Che Ming Lee, Su Houng Lim, Sanghoon |
| contents | We extend the recent study of $K_{1}/K^{*}$ enhancement as a signature of chiral symmetry restoration in heavy ion collisions at the Large Hadron Collider (LHC) via the kinetic approach to include the effects due to non-unity hadron fugacities during the evolution of produced hadronic matter and the temperature-dependent $K_1$ mass. Although the effect of non-unity fugacity only slightly reduces the $K_1/K^*$ enhancement due to chiral symmetry restoration, the inclusion of the temperature-dependent $K_1$ mass leads to a substantial reduction in the $K_1/K^*$ enhancement. However, the final $K_1/K^*$ ratio in peripheral collisions still shows a more than factor of two enhancement compared to the case without chiral symmetry restoration and thus remains a good signature for chiral symmetry restoration in the hot dense matter produced in relativistic heavy ion collisions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2310_11434 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Is $K_{1}/K^{*}$ enhancement in heavy ion collisions a signature of chiral symmetry restoration? Sung, Haesom Cho, Sungtae Ko, Che Ming Lee, Su Houng Lim, Sanghoon Nuclear Theory High Energy Physics - Phenomenology We extend the recent study of $K_{1}/K^{*}$ enhancement as a signature of chiral symmetry restoration in heavy ion collisions at the Large Hadron Collider (LHC) via the kinetic approach to include the effects due to non-unity hadron fugacities during the evolution of produced hadronic matter and the temperature-dependent $K_1$ mass. Although the effect of non-unity fugacity only slightly reduces the $K_1/K^*$ enhancement due to chiral symmetry restoration, the inclusion of the temperature-dependent $K_1$ mass leads to a substantial reduction in the $K_1/K^*$ enhancement. However, the final $K_1/K^*$ ratio in peripheral collisions still shows a more than factor of two enhancement compared to the case without chiral symmetry restoration and thus remains a good signature for chiral symmetry restoration in the hot dense matter produced in relativistic heavy ion collisions. |
| title | Is $K_{1}/K^{*}$ enhancement in heavy ion collisions a signature of chiral symmetry restoration? |
| topic | Nuclear Theory High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2310.11434 |