Spin relaxation rate for baryons in a thermal pion gas
Spin relaxation rate for baryons in a thermal pion gas
We study the relaxation dynamics of the spin polarization of baryons (nucleon and <a:math xmlns:a="http://www.w3.org/1998/Math/MathML"><a:mi mathvariant="normal">Λ</a:mi></a:math> baryon), in a thermal pion gas as a simple model of the hadronic phase of the QCD plasma produced in relativistic heavy-ion collisions. For this purpose, we formulate the quantum kinetic theory for the …