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| Autori principali: | , , |
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| Natura: | Preprint |
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2026
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| Accesso online: | https://arxiv.org/abs/2605.27347 |
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| _version_ | 1866918524831662080 |
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| author | Matsuda, Hidefumi Gubler, Philipp Hattori, Koichi |
| author_facet | Matsuda, Hidefumi Gubler, Philipp Hattori, Koichi |
| contents | We study the $ϕ$ meson at finite temperature and finite momentum using QCD sum rules. The presence of medium breaks the Lorentz invariance, and induces distinct in-medium modifications of the transverse and longitudinal modes at finite momentum. We find that, with increasing momentum, the masses of both modes increase and a clear transverse--longitudinal splitting develops. The splitting is found to grow with temperature and to be mainly generated by the dimension-four spin-dependent thermal condensates. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_27347 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Polarization dependence of the $ϕ$ meson mass from finite-temperature QCD sum rules Matsuda, Hidefumi Gubler, Philipp Hattori, Koichi High Energy Physics - Phenomenology High Energy Physics - Experiment We study the $ϕ$ meson at finite temperature and finite momentum using QCD sum rules. The presence of medium breaks the Lorentz invariance, and induces distinct in-medium modifications of the transverse and longitudinal modes at finite momentum. We find that, with increasing momentum, the masses of both modes increase and a clear transverse--longitudinal splitting develops. The splitting is found to grow with temperature and to be mainly generated by the dimension-four spin-dependent thermal condensates. |
| title | Polarization dependence of the $ϕ$ meson mass from finite-temperature QCD sum rules |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2605.27347 |