https://doi.org/10.1140/epja/i2018-12635-x
Regular Article - Theoretical Physics
Magnetic field effects on photon emission in intermediate energy heavy-ion collisions
1
Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 201800, Shanghai, China
2
University of Chinese Academy of Sciences, 100049, Beijing, China
3
Key Laboratory of Nuclear Physics and Ion-beam Application (MOE), Institute of Modern Physics, Fudan University, 200433, Shanghai, China
* e-mail: mayugang@cashq.ac.cn
Received:
7
July
2018
Accepted:
8
October
2018
Published online:
29
November
2018
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 
and elliptic flow 
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.
© SIF, Springer-Verlag GmbH Germany, part of Springer Nature, 2018
