Small Quadrupole Deformation for the Dipole Bands in 112In

High spin states in $^{112}$In were investigated using $^{100}$Mo($^{16}$O, p3n) reaction at 80 MeV. The excited level have been observed up to 5.6 MeV excitation energy and spin $\sim$ 20$\hbar$ with the level scheme showing three dipole bands. The polarization and lifetime measurements were carried out for the dipole bands. Tilted axis cranking model calculations were performed for different quasi-particle configurations of this doubly odd nucleus. Comparison of the calculations of the model with the B(M1) transition strengths of the positive and negative parity bands firmly established their configurations.Comment: 10 pages, 11 figures, 2 table

Possible antimagnetic rotation in 99Pd

The reduced electric quadrupole transition rates have been calculated for states of the negative parity band in the [Formula: see text]Pd nucleus using semiclassical particle-rotor model calculations. The calculated transition rates are found to decrease with increasing spin states. The dynamic moment of inertia [Formula: see text] of the states above I = [Formula: see text] are found to be large. The spin ([Formula: see text]) versus frequency ([Formula: see text]) plot obtained from the semiclassical model for the configuration [Formula: see text] ⊗[Formula: see text] is found to agree with the experimental data, which suggests a possible anti magnetic rotational character in the negative parity band. </jats:p

Level structures in the

Excited states of the 49 107 In nucleus were populated through the 78Se ( 32S , p2n) fusion-evaporation reaction at beam energy, E lab = 125 MeV. The de-excitations were studied using in-beam $\gamma$ -ray spectroscopic techniques involving the Compton-suppressed clover detector array. The level scheme of 107In consisting of about seven bands is established up to spin ∼ 45/2ℏ with the addition of 25 new transitions. Spins and parities of various levels have been assigned through the DCO and polarization measurements. The level structures observed in 107In have been interpreted in the framework of a microscopic theory based on the deformed Hartree-Fock (HF) and angular-momentum projection techniques. Various bands are reproduced in band mixing calculations with the configurations involving high-$\Omega$ $\pi$ g 9/2 and $\nu$ d 5/2 orbits, and low-$\Omega$ $\pi$ g 7/2 , $\nu$ g 7/2 and $\nu$ h 11/2 orbits