Expressions of a conserved 4-current and its density are examined in cases of electrically charged quantum particles. It is proven that the Noether theorem cannot be regarded as a sufficient condition that yields a consistent expression of a conserved 4-current, because electroma...
Open access
Research Article10.9734/PSIJ/2018/38853
The notion of pentaquark was coined about thirty years ago. During the progress of time the original meaning of pentaquark has been extended and now it is used for describing particles that belong to several distinct classes. The objective of this work is to arrange pentaquarks i...
Open access
Research Article10.9734/PSIJ/2017/32396
A gauge transformation of a simple electromagnetic system is analyzed. The Hamiltonian which is derived from the Dirac Lagrangian density is used for determining the state of an electron. The fact that this Hamiltonian is free of time differential operators plays a key role in th...
Open access
Research Article10.9734/PSIJ/2016/28572