Relaxation of the chiral imbalance in dense matter of a neutron star

Maxim Dvornikov, V.A. Andrianov, V.A. Matveev, V.A. Rubakov, V.T. Kim, A.A. Andrianov, M.D. Fitkevich
2016 EPJ Web of Conferences  
Using the quantum field theory methods, we calculate the helicity flip of an electron scattering off protons in dense matter of a neutron star. The influence of the electroweak interaction between electrons and background nucleons on the helicity flip is examined. We also derive the kinetic equation for the chiral imbalance. The derived kinetic equation is compared with the results obtained by other authors. Electron-proton collisions in dense plasma In NS, the helicity of a massive electron
more » ... massive electron can be changed in electron-proton (ep) and electron-electron electromagnetic scatterings as well as in the interaction of an electron with the anomalous magnetic moment of a neutron. As found in Ref. [5] , the rate of the former reaction in dense matter of NS is higher than that of the later ones. Therefore, in our analysis, we shall account for only ep collisions.
doi:10.1051/epjconf/201612503017 fatcat:jhupxkgbz5gfnnd4osmpi34ixa