Determination of hexadecapole (β4) deformation of the light-mass nucleus 24Mg using quasi-elastic scattering measurements
Dr. Yogesh Gupta
Bhabha Atomic Research Centre, India
Quasi-elastic scattering measurements have been performed using 16O and 24Mg projectiles off 90Zr at energies around the Coulomb barrier. These experiments were performed using the FN accelerator of Nuclear Science Laboratory at university of Notre Dame. Experimental data were analysed in the framework of coupled channels (CC) calculations using the code CCFULL. The quadruple and hexadecapole deformations of 24Mg ground state were obtained very precisely. The quadrupole deformation parameter determined in the present work is in good agreement with results obtained using inelastic scattering probes. The hexadecapole deformation of 24Mg has been measured very precisely (with 95% confidence limit) for the first time. It is emphasized that quasi-elastic barrier distribution is especially useful with radioactive beams, with which high precision measurements for fusion cross sections would be difficult in order to extract a fusion barrier distribution. This is also the case for fusion reactions relevant to super heavy elements. Details about the measurements, data analysis, and obtained results will be presented during the seminar.
Hosted by Prof. Garg
All interested persons are invited to attend remotely—email physics@nd.edu for information.