Flavor-independent yield of high-$p_T$ hadrons from nuclear collisions
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arXiv
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| Auteurs principaux: | , |
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866909218293940224 |
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| author | Kopeliovich, B. Z. Nemchik, J. |
| author_facet | Kopeliovich, B. Z. Nemchik, J. |
| contents | Data on high-$p_T$ hadron production in heavy ion collisions at Feynman $x_F=0$ indicate at universality of the observed nuclear suppression. Our analysis of the production mechanisms demonstrates important role of the color transparency effects which make the survival probability of a quark-antiquark dipole independent of the quark flavor, provided that the hadron wave function is formed outside the medium. The latter condition imposes restrictions on the range of $p_T$, which should be sufficiently high to make the nuclear suppression universal. We also found that the in-medium broadening rate $\hat q$ (frequently called transport coefficient) significantly depends on the quark flavor, diminishing for heavy quarks. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_03755 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Flavor-independent yield of high-$p_T$ hadrons from nuclear collisions Kopeliovich, B. Z. Nemchik, J. High Energy Physics - Phenomenology Data on high-$p_T$ hadron production in heavy ion collisions at Feynman $x_F=0$ indicate at universality of the observed nuclear suppression. Our analysis of the production mechanisms demonstrates important role of the color transparency effects which make the survival probability of a quark-antiquark dipole independent of the quark flavor, provided that the hadron wave function is formed outside the medium. The latter condition imposes restrictions on the range of $p_T$, which should be sufficiently high to make the nuclear suppression universal. We also found that the in-medium broadening rate $\hat q$ (frequently called transport coefficient) significantly depends on the quark flavor, diminishing for heavy quarks. |
| title | Flavor-independent yield of high-$p_T$ hadrons from nuclear collisions |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2406.03755 |