Effects of the magnetic field on $π^0$ production in ultraperipheral Pb-Pb collisions
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2026
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| _version_ | 1866914526360764416 |
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| author | Azevedo, C. N. Fariello, R. Sobrinho, F. C. Navarra, F. S. |
| author_facet | Azevedo, C. N. Fariello, R. Sobrinho, F. C. Navarra, F. S. |
| contents | In this work, we study the effect of the magnetic field on the production of neutral pions in photon-photon interactions in ultraperipheral Pb-Pb collisions at the LHC. The calculation is performed within the equivalent photon approximation, including a magnetic-field dependence in the decay width $Γ(π^0\toγγ)$, from which the corresponding production cross section is computed. We find that the reduction of the two-photon decay width in the presence of a strong magnetic field leads to a substantial reduction (by a factor of about 2-3) of the $π^0$ production cross section at LHC energies. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2605_01500 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Effects of the magnetic field on $π^0$ production in ultraperipheral Pb-Pb collisions Azevedo, C. N. Fariello, R. Sobrinho, F. C. Navarra, F. S. High Energy Physics - Phenomenology In this work, we study the effect of the magnetic field on the production of neutral pions in photon-photon interactions in ultraperipheral Pb-Pb collisions at the LHC. The calculation is performed within the equivalent photon approximation, including a magnetic-field dependence in the decay width $Γ(π^0\toγγ)$, from which the corresponding production cross section is computed. We find that the reduction of the two-photon decay width in the presence of a strong magnetic field leads to a substantial reduction (by a factor of about 2-3) of the $π^0$ production cross section at LHC energies. |
| title | Effects of the magnetic field on $π^0$ production in ultraperipheral Pb-Pb collisions |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2605.01500 |