γ-ray spectroscopy of fission fragments produced inPb208(O18,f

Evolution of nuclear structure in and around Z = 50 closed shell: Generalized seniority in Cd, Sn and Te isotopes

“…Q− moment values for 113,115 Sn are assumed with a negative sign due to systematics. B(E2) (e 2 b 2 ) [75] Q (b) [ (19) 0.3800(71) 78 0.263 (60) 0.296(10) 80 0.207 (17) the Cd isotopes beyond h 11/2 orbital. We find a similar behavior for the Sn and Te isotopes as shown in Fig.…”

“…Recent experiments [9] have highlighted a linear behavior of Q−moments for the 11/2 − states of the neutron-rich Cd isotopes even beyond the h 11/2 orbital. This unique simplification of the complex configurations in Cd isotopes has surprised the community [10] and has eventually led to extensive studies of Cd isotopes, from understanding the moments of 11/2 − states and other single-particle states in odd-A nuclei to the B(E2) values of the first excited 2 + states in even-even nuclei [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26]. This is in addition to the continuing interest in Cd isotopes since decades, both theoretical and experimental , where they were first labeled as vibrators and then refuted this status by supporting a weakly deformed structure.…”

Role of isospin and its conservation in neutron-rich fission fragments

“…A very brief account of our calculations and initial results for 208 Pb ( 18 O, f) have recently been presented in references [1,14]. In the present work, we present a detailed analysis of fission fragment mass distribution from three measurements [15,16,17]. The measurements of Bogachev et al [15], Banerjee et al [16] and Danu et al [17] are the first of its kind where both Z and A are precisely identified, although only for even-even fission fragments.…”

“…In the present work, we present a detailed analysis of fission fragment mass distribution from three measurements [15,16,17]. The measurements of Bogachev et al [15], Banerjee et al [16] and Danu et al [17] are the first of its kind where both Z and A are precisely identified, although only for even-even fission fragments. The fission fragment mass distributions were obtained for the compound nucleus 226 Th and 256 Fm formed in the reaction 18 O+ 208 Pb and 18 O+ 238 U respectively, employing the large detector arrays EUROBALL IV [18] and INGA [19] by using fission fragment gamma ray spectroscopy.…”

“…We have considered two reactions in this paper, namely 208 Pb( 18 O, f) and 238 U( 18 O, f), where fission fragmnet distribution data have been measured with a precision of one unit of Z and A, giving partition wise fission fragment yields for even-even nuclei only. Two sets of experimental data are known for 208 Pb( 18 O, f), which come from the measurements of Bogachev et al [15] and Banerjee et al [16]. This reaction leads to the formation of 226 Th as CN.…”