Nuclear spectroscopy of the isotopes of Nb, Mo and Tc

Calculation for the excitation functions of theNb93(p,n)MoGul1 2009Phys. Rev. C2000View full textAdd to dashboardCite

“…The coupling of two protons in g 9/2 shell can give rise to angular-momentum values of J = 0, 2, 4, 6, 8 that on coupling with one neutron in 2d 5/2 shell gives rise to 24 states in the spin range from 0 to 21/2 spread over the energy dispersion of 3 MeV. Similar calculations have also been reported by Bhatt and Ball [19] and Vervier [20]. These calculations have correctly predicted the isomeric state having energy of about 2.43 MeV.…”

“…These calculations have correctly predicted the isomeric state having energy of about 2.43 MeV. Auerbach and Talmi [18] predicted the level with spin-parity value of 17/2 to lie above the isomeric state while calculation by Bhatt and Ball [19] placed it below the isomeric state. It has been located through 93 Nb(p, nγ ) 93 Mo reactions [21,22] to lie above the isomeric state.…”

A study of the93Nb levels populated via the (n, n′ γ) reaction

“…The excited states of nuclei in this mass region have usually been described in terms of the shell-model, assuming residual nucleon-nucleon 88 90 interactions outside a asSr or ,0Zr semi-closed shell core [10][11][12][13], and in terms of the unified model, assuming the coupling of single-particle states to the neighbouring even-even vibrational core [14,15]. Detailed theoretical calculations for the 93Nb nucleus involving fits to the energy levels, have however been handicapped by the many differences in the quoted spin assignments.…”

High-spin states in97Tc

“…In the Alaga-Paar model [1] the odd-A Tc-isotopes are described by coupling a three particle valence-shell cluster to quadrupole vibrations of the core. Bhatt and Ball [2] and Vervier [3] calculated the levelstructure of Tc-isotopes with mass number A>95 utilizing effective interaction matrix elements obtained from experiments. There exist also quasi-particle phonon coupling [41 and core-coupling calculations [5].…”