Level structure ofNb95

Abstract

The level structure of the 95 Nb nucleus has been studied with the (t, p) reaction in 93 Nb using a tandem Van de Graaff accelerator and a multichannel magnetic spectrograph at an incident beam energy of 12 MeV. Proton spectra are obtained at 12 different angles from 5 • to 87.5 • at an interval of 7.5 • . Measurements of the proton distributions from the 93 Nb(t, p) 95 Nb reaction were made for the ground and 54 excited states up to the excitation energy of 3.669 MeV. Absolute differential cross sections for the levels have been measured. The experimental angular distributions are compared with the theoretical distorted-wave Born approximation calculations to determine L values and J π values. The level structure of 95 Nb is compared with previous results.

NUCLEAR STRUCTURE OF 99Mo FROM THE (t,p) REACTION

“…Hence the spin of this level is 5/2 + . [1][2][3] The large number of states in the final nucleus are described by a single L transfer. The J π value of this level was reported as 11/2 − in the 96 Zr(α, n) 99 Mo reaction 8 which is not in agreement with ours whereas this level was not observed in the previous (t, p) work.…”

“…The 0.683 MeV level is assigned (1/2 → 9/2) + in the present work. [1][2][3] The theoretical investigation on the level structure of 99 Mo was carried out in the frame work of quasi particle phonon coupling model. 1 The level at 0.699 MeV is assigned a definite J π value of 5/2 + as the prediction of L = 0 transfer fits the experimental distribution very well which is consistent with the value predicted by Roy and Choudhury.…”

“…[1][2][3][4][5][6] In Mo isotopes, the first excited 2 + states are located at 0.774 MeV in 96 Mo, 0.738 MeV in 98 Mo, 0.539 MeV in 100 Mo and go down in energy with the increase in the neutron number. [1][2][3][4][5][6] In Mo isotopes, the first excited 2 + states are located at 0.774 MeV in 96 Mo, 0.738 MeV in 98 Mo, 0.539 MeV in 100 Mo and go down in energy with the increase in the neutron number.…”

Two-neutron transfer analysis of theO16(O18,O16Ermamatov1, Cappuzzello2, Lubián3 et al. 2016Phys. Rev. C660760View full textAdd to dashboardCite

“…(4) The spectroscopic factors obtained by the inclusion of 1p 3/2 and 1d 3/2 orbitals mainly affect the sequential mechanism. (5) The interplay between the transfer of the two neutrons and the excited states of the counterparts have a sizable impact in the final cross sections.…”

“…In particular, transfer reactions, in which the projectile transfers one or more nucleons to or from the target nucleus, provide access to nuclear spectroscopic amplitudes. Reactions with light ions like (p,t) and (t,p) have been extensively used to study pairing correlations in proton-rich and neutronrich nuclei, respectively [3][4][5][6][7][8][9][10][11][12][13]. Such types of reactions are advantageous because, from the experimental point of view, detection of light particles provides good energy resolution and clear particle identification.…”