TY - JOUR
T1 - One-neutron transfer study of 135Te and 137Xe by particle-γ coincidence spectroscopy
T2 - The ν1i13/2 state at N=83
AU - Allmond, J. M.
AU - Radford, D. C.
AU - Pavan, J.
AU - Lagergren, K.
AU - Baktash, C.
AU - Beene, J. R.
AU - Bingham, C. R.
AU - Chaturvedi, L.
AU - Danchev, M.
AU - Fong, D.
AU - Galindo-Uribarri, A.
AU - Hausladen, P. A.
AU - Hwang, J. K.
AU - Krolas, W.
AU - Liang, J. F.
AU - Padilla-Rodal, E.
AU - Reviol, W.
AU - Sarantites, D. G.
AU - Seweryniak, D.
AU - Shapira, D.
AU - Stuchbery, A. E.
AU - Urrego-Blanco, J. P.
AU - Varner, R. L.
AU - Wang, X.
AU - Yu, C. H.
AU - Zhu, S.
PY - 2012/9/21
Y1 - 2012/9/21
N2 - Additional information is reported on single-neutron states above the doubly closed-shell nucleus 132Sn. A radioactive ion beam of 134Te(N=82) at 565 MeV and a stable ion beam of 136Xe(N=82) at 560 MeV were used to study single-neutron states in the N=83 nuclei 135Te and 137Xe, respectively, by (13C, 12Cγ) and (9Be, 8Beγ) direct reactions in inverse kinematics. Particle-γ and particle-γ-γ coincidence measurements using CsI and HPGe arrays allowed determination of decay paths, high-precision level energies, multipolarities of transitions, and relative cross sections. One-neutron transfer with heavy ions is employed to gain selectivity to both low- and high-spin single-neutron states above the N=82 shell closure. Results are presented for the 13/21+ states in the N=83 nuclei 135Te and 137Xe at 2108.8(9) keV and 1752.6(3) keV, respectively, and for the 31- collective octupole state observed at 3749(5) keV in 134Te(N=82) inelastic scattering, all previously unknown. While the 13/21+ state (or ν1i13/2 centroid) in 133Sn(Z=50, N=83) remains unknown, the present results provide the best empirical prediction of its energy available to date.
AB - Additional information is reported on single-neutron states above the doubly closed-shell nucleus 132Sn. A radioactive ion beam of 134Te(N=82) at 565 MeV and a stable ion beam of 136Xe(N=82) at 560 MeV were used to study single-neutron states in the N=83 nuclei 135Te and 137Xe, respectively, by (13C, 12Cγ) and (9Be, 8Beγ) direct reactions in inverse kinematics. Particle-γ and particle-γ-γ coincidence measurements using CsI and HPGe arrays allowed determination of decay paths, high-precision level energies, multipolarities of transitions, and relative cross sections. One-neutron transfer with heavy ions is employed to gain selectivity to both low- and high-spin single-neutron states above the N=82 shell closure. Results are presented for the 13/21+ states in the N=83 nuclei 135Te and 137Xe at 2108.8(9) keV and 1752.6(3) keV, respectively, and for the 31- collective octupole state observed at 3749(5) keV in 134Te(N=82) inelastic scattering, all previously unknown. While the 13/21+ state (or ν1i13/2 centroid) in 133Sn(Z=50, N=83) remains unknown, the present results provide the best empirical prediction of its energy available to date.
UR - http://www.scopus.com/inward/record.url?scp=84866716071&partnerID=8YFLogxK
U2 - 10.1103/PhysRevC.86.031307
DO - 10.1103/PhysRevC.86.031307
M3 - Article
AN - SCOPUS:84866716071
SN - 0556-2813
VL - 86
JO - Physical Review C - Nuclear Physics
JF - Physical Review C - Nuclear Physics
IS - 3
M1 - 031307
ER -