On the role of magnetic field in photon excess in heavy ion collisions
نویسنده
چکیده
Synchrotron photon spectrum in heavy-ion collisions is computed taking into account the spatial and temporal structure of magnetic field. It is found that a significant fraction of photon excess in heavy-ion collisions in the region k⊥ = 1 − 3 GeV can be attributed to the synchrotron radiation. Azimuthal anisotropy of the synchrotron photon spectrum is characterized by the “flow” coefficients v2 = 4/7 and v4 = 1/10 that are independent of photon momentum and centrality.
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