Neutral and charged scalar mesons, pseudoscalar mesons, and diquarks in magnetic fields
Neutral and charged scalar mesons, pseudoscalar mesons, and diquarks in magnetic fields
We investigate both (pseudo)scalar mesons and diquarks in the presence of external magnetic field in the framework of the two-flavored Nambu--Jona-Lasinio (NJL) model, where mesons and diquarks are constructed by infinite sum of quark-loop chains by using random phase approximation. The polarization function of the quark-loop is calculated to the …