Can charm fluctuation be a better probe to study QCD critical point?
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arXiv
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866909471700156416 |
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| author | Goswami, Kangkan Pradhan, Kshitish Kumar Sahu, Dushmanta Dey, Jayanta Sahoo, Raghunath |
| author_facet | Goswami, Kangkan Pradhan, Kshitish Kumar Sahu, Dushmanta Dey, Jayanta Sahoo, Raghunath |
| contents | We study the diffusion properties of an interacting hadron gas and evaluate the diffusion coefficient matrix for the baryon, strange, electric, and charm quantum numbers. For the first time, this study sheds light on the charm current and estimates the diffusion matrix coefficient for the charmed states by treating them as a part of the quasi-thermalized medium. We explore the diffusion matrix coefficient as a function of temperature and center-of-mass energy. A van der Waals-like interaction is assumed between the hadrons, including attractive and repulsive interactions. The calculation of diffusion coefficients is based on relaxation time approximation to the Boltzmann transport equation. A good agreement with available model calculations is observed in the hadronic limit. To conclude the study, we discuss, with a detailed explanation, that charm fluctuation is expected to be a better tool for probing the QCD critical point. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_13255 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Can charm fluctuation be a better probe to study QCD critical point? Goswami, Kangkan Pradhan, Kshitish Kumar Sahu, Dushmanta Dey, Jayanta Sahoo, Raghunath High Energy Physics - Phenomenology High Energy Physics - Experiment Nuclear Experiment Nuclear Theory We study the diffusion properties of an interacting hadron gas and evaluate the diffusion coefficient matrix for the baryon, strange, electric, and charm quantum numbers. For the first time, this study sheds light on the charm current and estimates the diffusion matrix coefficient for the charmed states by treating them as a part of the quasi-thermalized medium. We explore the diffusion matrix coefficient as a function of temperature and center-of-mass energy. A van der Waals-like interaction is assumed between the hadrons, including attractive and repulsive interactions. The calculation of diffusion coefficients is based on relaxation time approximation to the Boltzmann transport equation. A good agreement with available model calculations is observed in the hadronic limit. To conclude the study, we discuss, with a detailed explanation, that charm fluctuation is expected to be a better tool for probing the QCD critical point. |
| title | Can charm fluctuation be a better probe to study QCD critical point? |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment Nuclear Experiment Nuclear Theory |
| url | https://arxiv.org/abs/2409.13255 |