Akademik Veri Yönetim Sistemi
Budak M. G., Saygı B.(Yürütücü)
Diğer Ülkelerdeki Kamu Kurumları Tarafından Desteklenmiş Proje, 2023 - 2023
Experimental fingerprints of the X(5) critical-point symmetry are: i) E(4+)/E(2+) ∼ 2.91 ii) B(E2; 4+ → 2 +)/B(E2; 2+ → 0 +) ∼ 1.58, iii) P-factor ∼ 5. The first nucleus to be identified as exhibiting X(5) behaviour was 152Sm [6] followed by 150Nd. Further experiments on 152Sm and 150Nd support this conclusion. On the other hand, the data for the neutron deficient side of these nuclei reveal discrepancies due to different lifetime values in the literature. One of the possible candidates for X(5) is 134Sm (N=72) with its E(4+)/E(2+) = 2.93 and P-factor ≅5. The lifetime values have been measured using single spectra and disagree with the X(5) excitation pattern of this nucleus. In the present proposal, we are aiming to remeasure lifetime of excited states in 134Sm using 2n correlated gamma-gamma coincidence by employing the state of arts equipment such as EAGLE and NEDA in conjunction with state of arts techniques such recoil distance Doppler shift technique and differential decay curve method. To populate excited states in 134Sm, we are planning to fire 32S on 106Cd at 155 MeV. The estimated reaction cross-section by HIVAP is 20 mb 134Sm will be populated with 2p2n exit channel.