A proposal that Z0 to mu+ mu- decays in a strong magnetic field produce negative v2 and harder antimuon pT, offering a potential early-field magnetometer.
On the role of magnetic field in photon excess in heavy ion collisions
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abstract
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 $k_\bot=1-3$GeV can be attributed to the synchrotron radiation. Azimuthal anisotropy of the synchrotron photon spectrum is characterized by the Fourier coefficients $v_2=4/7$ and $v_4=1/10$ that are independent of photon momentum and centrality.
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Asymmetric muon-antimuon emission from $Z^0$ decays: a clear magnetometer in relativistic heavy-ion collisions
A proposal that Z0 to mu+ mu- decays in a strong magnetic field produce negative v2 and harder antimuon pT, offering a potential early-field magnetometer.