Elliptic flow from thermal photons with magnetic field in holography

نویسندگان

  • Berndt Müller
  • Shang-Yu Wu
  • Di-Lun Yang
چکیده

We compute the elliptic flow v2 of thermal photons in a strongly coupled plasma with constant magnetic field via gauge/gravity duality. The D3/D7 embedding is applied to generate the contributions from massive quarks. By considering the cases in 2+1 flavor SYM analogous to the photon production in QGP, we obtain the thermal-photon v2, which is qualitatively consistent with the direct-photon v2 measured in RHIC at intermediate energy. However, due to the simplified setup, the thermal-photon v2 in our model should be regarded as the upper bound for the v2 generated by solely magnetic field in the strongly coupled scenario.

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تاریخ انتشار 2014