Strong magnetic fields reduce the π⁰ two-photon decay width, lowering the production cross section by a factor of about 2-3 in ultraperipheral Pb-Pb collisions at LHC energies.
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Effects of the magnetic field on $\pi^0$ production in ultraperipheral Pb-Pb collisions
Strong magnetic fields reduce the π⁰ two-photon decay width, lowering the production cross section by a factor of about 2-3 in ultraperipheral Pb-Pb collisions at LHC energies.