Polarization tensor of magnetized quark-gluon plasma at nonzero baryon density

Abstract We derive a general expression for the absorptive part of one-loop photon polarization tensor in strongly magnetized quark-gluon plasma at nonzero baryon chemical potential. To demonstrate application main result context heavy-ion collisions, we study effect potential on emission rate. The rate and ellipticity are studied numerically as function transverse momentum (energy) several values temperature When is small compared to temperature, rates quark antiquark splitting processes (i.e., $$q\rightarrow q +\gamma $$ q → + γ $${\bar{q}}\rightarrow {\bar{q}} ¯ , respectively) approximately same. However, gradually becomes dominant process with increasing also find that leads growing total production but has only emission. quark-antiquark annihilation ( $$q+{\bar{q}}\rightarrow \gamma ) contributes production, its contribution remains relatively wide range temperatures potentials investigated.