Collective excitations in the117, 119, 121Te nuclei

摘要: Abstract High-spin states in odd-mass Te nuclei were studied by means of the (α, 2n), ( 3 He, 3n) and (d, 2n) reactions. Using in-beam spectroscopic methods γ-ray energies, intensities, excitation functions, time angular distributions γ-γ coincidences measured. Also, for 121 Te, measurements linear polarization γ-rays internal conversion electron spectra performed. Level schemes (A = 117–121) established Up to spin values J =232. The predominantly excited level sequences, built on the112 − states, are compared with ground state bands doubly even nuclei. systematics decoupled112 Z 50 region is given. Deviations spacings maximum aligned h 112 ⊗ R multiplets from those g.s. neighbouring core can be observed. energetically favoured coupling max−1 may caused blocking effect due Pauli principle or dynamical shape fluctuations. ]112 ] systems furthermore particle-core calculations where different models tested, such as rigid triaxial rotor, soft rotor including hexadecapole deformation, γ-unstable potential. Each model assumption leads a rather good agreement experimental energies.