Determination of hexadecapole (beta(4)) deformation of the light-mass nucleus Mg-24 using quasi-elastic scattering measurements

Gupta, Y.; Nayak, B.; Garg, U.; Hagino, K.; Howard, K.; Sensharma, N.; ŞENYİĞİT, MENEKŞE; Tan, W.; O'Malley, P.; Smith, M.; Gandhi, Ramandeep; Anderson, T.; deBoer, R.; Frentz, B.; Gyurjinyan, A.; Hall, O.; Hall, M.; Hu, J.; Lamere, E.; Liu, Q.; Long, A.; Lu, W.; Lyons, S.; Ostdiek, K.; Seymour, C.; Skulski, M.; Vande Kolk, B.

doi:10.1016/j.physletb.2020.135473

Determination of hexadecapole (beta(4)) deformation of the light-mass nucleus Mg-24 using quasi-elastic scattering measurements

Atıf İçin Kopyala

Gupta Y. K., Nayak B. K., Garg U., Hagino K., Howard K. B., Sensharma N., ...Daha Fazla

PHYSICS LETTERS B, cilt.806, 2020 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 806
Basım Tarihi: 2020
Doi Numarası: 10.1016/j.physletb.2020.135473
Dergi Adı: PHYSICS LETTERS B
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, INSPEC, zbMATH, Directory of Open Access Journals
Ankara Üniversitesi Adresli: Evet

Özet

Quasi-elastic scattering measurements have been performed using O-16 and Mg-24 projectiles off Zr-90 at energies around the Coulomb barrier. Experimental data have been analyzed in the framework of coupled channels (CC) calculations using the code CCFULL. The quasi-elastic scattering excitation function and derived barrier distribution for O-16 + Zr-90 reaction are well reproduced by the CC calculations using the vibrational coupling strengths for Zr-90 reported in the literature. Using these vibrational coupling strengths, a Bayesian analysis is carried out for Mg-24 + Zr-90 reaction. The beta(2) and beta(4) values for Mg-24 are determined to be +0.43 +/- 0.02 and -0.11 +/- 0.02, respectively. The beta(2) parameter determined in the present work is in good agreement with results obtained using inelastic scattering probes. The hexadecapole deformation of Mg-24 has been measured very precisely for the first time. Present results establish that quasi-elastic scattering could provide a useful probe to determine the ground state deformation of atomic nuclei. (C) 2020 The Author(s). Published by Elsevier B.V.