Equilibration of the chiral asymmetry due to finite electron mass in electron-positron plasma
Equilibration of the chiral asymmetry due to finite electron mass in electron-positron plasma
We calculate the rate of collisional decay of the axial charge in an ultrarelativistic electron-positron plasma, also known as the chirality flipping rate. We find that contrary to the existing estimates, the chirality flipping rate appears already in the first order in the fine-structure constant $\alpha$ and is therefore orders …