<正> There are four possible combinations of spinisospin quantum members of n-p system at low energies: (S,T)=(1,0), (0,1), (1.1) and (0,0), where (1,0) corresponds to ground state deuteron, and its binding ener...<正> There are four possible combinations of spinisospin quantum members of n-p system at low energies: (S,T)=(1,0), (0,1), (1.1) and (0,0), where (1,0) corresponds to ground state deuteron, and its binding energy is 2.225 MeV; while (0,1) corresponds to singlet deuteron (denoted by d~*). Previous investigations indicate that d~* is possibly a low energy resonant state. As existing experimental evidence for its existence is ambiguous, no definite conclusion has been reached.展开更多
文摘<正> There are four possible combinations of spinisospin quantum members of n-p system at low energies: (S,T)=(1,0), (0,1), (1.1) and (0,0), where (1,0) corresponds to ground state deuteron, and its binding energy is 2.225 MeV; while (0,1) corresponds to singlet deuteron (denoted by d~*). Previous investigations indicate that d~* is possibly a low energy resonant state. As existing experimental evidence for its existence is ambiguous, no definite conclusion has been reached.