Barnett effect as a new source of magnetic field in heavy-ion collisions
Fuente:
arXiv
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866916991479054336 |
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| author | Sahu, Dushmanta |
| author_facet | Sahu, Dushmanta |
| contents | The Barnett effect is a fundamental magnetomechanical phenomenon in which a ferromagnetic material becomes magnetized under rotation. Using a hadron resonance gas (HRG) model under rigid rotation, we compute the Barnett magnetization ($M_{\rm Barnett}$) and show that it produces a magnetic field ($B_{\text{ind}}$) comparable in magnitude to the well-known external field ($B_{\text{ext}}$) from spectator protons at low energy heavy-ion collisions. This finding establishes the Barnett effect as a previously overlooked but essential source of magnetization and magnetic field in the heavy-ion collisions, with profound implications for understanding spin dynamics and anomalous transport in quantum chromodynamics under extreme rotation. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_05066 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Barnett effect as a new source of magnetic field in heavy-ion collisions Sahu, Dushmanta High Energy Physics - Phenomenology High Energy Physics - Theory Nuclear Theory The Barnett effect is a fundamental magnetomechanical phenomenon in which a ferromagnetic material becomes magnetized under rotation. Using a hadron resonance gas (HRG) model under rigid rotation, we compute the Barnett magnetization ($M_{\rm Barnett}$) and show that it produces a magnetic field ($B_{\text{ind}}$) comparable in magnitude to the well-known external field ($B_{\text{ext}}$) from spectator protons at low energy heavy-ion collisions. This finding establishes the Barnett effect as a previously overlooked but essential source of magnetization and magnetic field in the heavy-ion collisions, with profound implications for understanding spin dynamics and anomalous transport in quantum chromodynamics under extreme rotation. |
| title | Barnett effect as a new source of magnetic field in heavy-ion collisions |
| topic | High Energy Physics - Phenomenology High Energy Physics - Theory Nuclear Theory |
| url | https://arxiv.org/abs/2510.05066 |