Electron energy loss spectra for the inner shell excitations of atomic lithium are measured at an incident electron energy of 2500eV and scattering angles of 0
Cross sections of electron-loss in H(1s)+ H(1s) collisions and total collisional destruction of H(2s) in H(1s) + H(2s) collisions are calculated by four-body cl
The spontaneous evolution from ultracold Rydberg atoms to plasma is investigated in a caesium MOT by using the method of field ionization. The plasma transferre
Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049We calculate the weak form factors of the decays Bc(B) → Dl(v) by using the chiral