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Magnetic field effects on photon emission in intermediate energy heavy-ion collisions

  • Regular Article - Theoretical Physics
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Abstract.

Photon production cross section in heavy-ion collisions is estimated by employing the elementary process of proton-neutron bremsstrahlung in a Boltzmann-Uehling-Uhlenbeck model. With taking the electromagnetic field into account for simulating the reactions, the magnetic effects are considered in different impact parameter regions for the collisions of 14N + 208Pb at incident energy of 40 MeV/nucleon in the laboratory system. We investigated the energy spectra, production rates, and the polar angular distributions of photons. In particular, the directed flow \( v_{1}\) and elliptic flow \( v_{2}\) are extracted for both photons and free nucleons. In contrast with unaffected nucleon flows by the magnetic field, photon flows do display magnetic field effect.

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Authors and Affiliations

  1. Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 201800, Shanghai, China

    X. G. Deng & Y. G. Ma

  2. University of Chinese Academy of Sciences, 100049, Beijing, China

    X. G. Deng

  3. Key Laboratory of Nuclear Physics and Ion-beam Application (MOE), Institute of Modern Physics, Fudan University, 200433, Shanghai, China

    Y. G. Ma

Authors
  1. X. G. Deng
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  2. Y. G. Ma
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Correspondence to Y. G. Ma.

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Communicated by F. Gulminelli

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Deng, X.G., Ma, Y.G. Magnetic field effects on photon emission in intermediate energy heavy-ion collisions. Eur. Phys. J. A 54, 204 (2018). https://doi.org/10.1140/epja/i2018-12635-x

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  • DOI: https://doi.org/10.1140/epja/i2018-12635-x

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