Isomer production in intermediate-energy deuteron-induced reactions on a gold target

Author(s):Show less -

Balabekyan, A. R. ; Karapetyan, G. S. ; Demekhina, N. A. ; Drnoyan, D. R. ; Zhemenik, V. I. ; Adam, J. ; Zavorka, L. ; Solnyshkin, A. A. ; Tsoupko-Sitnikov, V. M. ; Guimaraes, V. ; Deppman, A.

• Document type: Journal article
• Source: PHYSICAL REVIEW C; v. 93, n. 5, p. 6-pg., 2016-05-18.

Abstract

Residual nuclei formed at ground and isomeric states from the interaction of 4.4 GeV deuteron with a gold target have been measured and investigated by the induced-activity method. Eight isomeric and ground-state pairs of target residues in the mass range of 44 < A < 198 were identified by off-line gamma-spectroscopy analysis and their isomer ratios were obtained from the cross-section production. From the isomer ratio data of the formed Au-196 and Hg-197 nuclei, the average intrinsic angular momentum of the composite system was estimated by means of a simple statistical model based on the formalism developed by Huizenga and Vandenbosch. (AU)

• FAPESP's process: 14/00284-1 - Production of isomeric states in the deuteron-induced reaction of gold and lead at high-energies
• Grantee: Gayane Karapetyan
• Support Opportunities: Scholarships abroad - Research Internship - Post-doctor
• FAPESP's process: 14/14432-2 - Spectroscopic investigation of nuclei for nuclear astrophysics
• Grantee: Valdir Guimarães
• Support Opportunities: Scholarships abroad - Research