Yayınlanmış 1 Ocak 2018
| Sürüm v1
Dergi makalesi
Açık
Lifetime measurements in the chiral-candidate doublet bands of La-130
Oluşturanlar
- 1. Horia Hulubei Natl Inst Phys & Nucl Engn, Bucharest 077125, Romania
- 2. Aksaray Univ, Dept Phys, TR-68100 Aksaray, Turkey
- 3. Ege Univ, Fac Sci, Dept Phys, TR-35100 Izmir, Turkey
Açıklama
The lifetimes of the excited states belonging to the chiral-candidate doublet bands built on the pi h(11/2) circle times vh(11/12)(-1) configuration in La-130 have been measured by applying the Doppler-shift attenuation method and the in-beam fast timing technique. Excited states were populated in the Sb-121(C-12, 3n) reaction at a bombarding energy of 54 MeV. The 7(+) bandhead of the yrast band was identified as an isomeric state with a lifetime of tau(7(+)) = 0.38(7) ns Similar reduced transition probabilities B(M1) and B(E2) were found for the states with the same spin in the partner bands. The results revealed an even-odd spin dependence in the B(E2) values, whereas the B (M1) values vary nearly monotonically with increasing spin. The experimental properties of the doublet bands in La-130 are compared with theoretical calculations done in the frame of the two-quasiparticles-plus-triaxial-rotor model. The static chirality is not supported by the obtained data; however, chiral vibrations cannot be excluded.
Dosyalar
bib-34c7d469-ecec-437c-9d65-6d9ec12b95f7.txt
Dosyalar
(361 Bytes)
| Ad | Boyut | Hepisini indir |
|---|---|---|
|
md5:994a3a4a508d41552cd0c9d0b113500e
|
361 Bytes | Ön İzleme İndir |