Low-lying states near the isomer in. (8th December 2015)

• Record Type: Journal Article
• Authors: Sethi, J; Palit, R; Carroll, J J; Karamian, S; Saha, S; Biswas, S; Naik, Z; Trivedi, T; Litz, M S; Datta, P; Chattopadhyay, S; Donthi, R; Garg, U; Jadhav, S; Jain, H C; Kumar, S; Mehta, D; Naidu, B S; Bhat, G H; Sheikh, J A; Sihotra, S; Walker, P M
• Is Part Of: Journal of physics. Volume 43:Number 1(2016:Jan.)
• Publication Date: 2015-12-08
• Subjects: isomer -- nuclear structure -- gamma ray spectroscopy -- fusion evaporation reaction; Nuclear physics -- Periodicals; Particles (Nuclear physics) -- Periodicals; Physique nucléaire -- Périodiques; Particules (Physique nucléaire) -- Périodiques; Kernfysica; Elementaire deeltjes; 539.7
• DOI: 10.1088/0954-3899/43/1/015103
• Languages: English
• ISSNs: 0954-3899

Abstract

Abstract: The low-lying states of 108 Ag near the I π = 6 + isomer have been investigated with the 11 B + 100 Mo reaction at 39 MeV beam energy. We aim at understanding the structure of the states near the isomer and identifying possible isomer depletion paths. From the γ – γ and γ – γ – γ coincidence analysis, spectroscopy of the excited states near the isomer has been carried out to establish new transitions and modification of the previously known level scheme. The present work suggests a total of three possible transitions at energies below 500 keV from the isomer to higher excited levels, whose subsequent decay can branch to the ground state. The spins and parities of these states have been established with angular correlation and polarization measurements. The branching ratios and multipolarities of the associated γ -rays were used in the estimation of the integral cross section for induced isomer depletion via these states. The experimental data have been compared to the results of projected Hartree–Fock calculations to understand the configurations of the levels.