[en] An extensive investigation of the angular analogue to the Giant Dipole, the ''Giant Angle Dipole'', undertaken within the framework of a self-consistent QRPA formalism employing Skyrme forces, has revealed a number of facets about this state. In the case of ¹⁵⁶Gd, the QRPA solutions obtained showed fragmentation of the B(M1) strength occurs without the need to postulate triaxiallity or octupole deformations. Overlaps unambiguously reveal the dominant component of the fragmented state found at 3.41 MeV, having BM(1) = 1.49μ_N² with little spin flip contribution, to be a contra angular rotational oscillation of the proton and neutron densities, together with isovector plus isoscalar admixture of two orthogonal shears, in agreement with the oscillator model. The implications of this state as a tool in nuclear structure physics are discussed

[en] High spin states of the nucleus ¹⁸⁷Tl were populated with the ¹⁵⁶Gd(³⁵Cl,4n) reaction at 172 MeV. The measurement was performed at ATLAS using 12 Compton suppressed Ge detectors and a 50 element BGO ball. Several level structures have been established from the γ-γ coincidence analysis. The strongest one is a relatively low-lying (around 1 MeV) prolate rotational band observed up to spin 45/2. The configuration of this band will be discussed on the basis of comparisons with bandhead calculations and TRS calculations. A systematic comparison including band structures in A < 190 Tl isotopes and their respective Hg core nuclei will be presented

[en] Odd-odd nuclei are very complicated systems because many coupling schemes are possible between the various quasi-particle configurations. By studying these nuclei one can test different coupling schemes and their effects on the nuclear structure, e.g., the blocking effect. The previously unknown odd-odd nucleus ¹⁷⁸Ir has been studied via the reactions ¹⁵⁶Gd(²⁷Al,5n) and ¹⁵²Sm(³¹P,5n). The measurements were performed at the Holifield Heavy Ion Research Facility using the Spin Spectrometer and the Compact Ge array. The excitation functions and the multiplicity K distributions of γ rays were used to identify transitions belonging to this nucleus. The preliminary study leads to assignment of several rotational bands in ¹⁷⁸Ir, among them a doubly-decoupled band that resembles those in heavier Ir isotopes. The nature of this band and other band assignments, based on signature splitting and B(M1)/B(E2) ratios, will be discussed

[en] Neutron resonances of ¹⁵⁴Gd and ¹⁵⁶Gd isotopes are studied. Resonance identification is based on the methods of γ transition detection from the isotope (n, γ) reaction. The proposed method permits to obtain the time-of-flight dependence of the γ ray yield corresponding to the certain line in the γ spectrum with total discrimination of all the rest γ rays. The γ ray spectra according to the neutron time-of-flight from the ¹⁵⁴Gd(n, γ)¹⁵⁵Gd and ¹⁵⁶Gd(n, γ)¹⁵⁷Gd reactions are presented. The estimation of the upper limit of the neutron resonance width 9.41 MeV for the ¹⁵⁴Gd nucleus is obtained which is equal to 8.5 MeV. 80.15 and 109.9 eV resonances of the ¹⁵⁶Gd nucleus are determined

[en] Heavy Ion (HI) induced fusion reactions have been a subject of great interest from the last two decades. These reactions prove to be helpful: in understanding various nuclear astrophysical processes, in exploring the nuclear landscape and hence searching for the heaviest possible chemical element that may exist etc. To have further better understanding of BUF reaction dynamics, we have carried out the EF measurements of various evaporation residues (ERs) populated in ¹²C + ¹⁵⁶Gd system in the energy region of 4-8 MeV/nucleon

[en] In last couple few decades, great efforts have been made in the study of fusion process in heavy ion induced reactions. It has been shown that at energies 5 MeV above the Coulomb barrier, the fusion process was playing an important role in reaction cross section. An attempt has been made to study ICF reaction in ¹⁶O + ¹⁵⁶Gd reaction at projectile energy ranging ∼ 68-98 MeV

[en] In the present study we have made an attempt to measure the forward recoil range distributions (RRDs) of the residues produced in an interaction of ¹⁶O with ¹⁵⁶Gd at 86 MeV to get a more clear picture of linear momentum transferred from projectile to target. The measurement of RRD can also be used to distinguish different ICF processes where the same residue may be formed by fusion of different fragments in the projectile break-up with target followed by the emission of different groups of particle. To the best of our knowledge RRDs for this system has been measured for the first time

[en] The excitation functions (EFs) of the various evaporation residues produced in the ¹⁶O + ¹⁵⁶Gd system have been studied in the energy range ≅ 4.3-6.1 MeV/nucleon by using activation technique. The measured excitation of the evaporation residues have been compared with statistical model based computer codes PACE-2

No abstract available

No abstract available