Nuclear Structure Studies in the 132Sn Region: "Safe Coulex" with Carbon Targets

38th Symposium on Nuclear Physics

Allmond, J.M.^1 ; Stuchbery, A.E.^2 ; Galindo-Uribarri, A.^1,3 ; Padilla-Rodal, E.^4 ; Radford, D.C.^1 ; Batchelder, J.C.^5 ; Bingham, C.R.^1,3 ; Howard, M.E.^6 ; Liang, J.F.^1 ; Manning, B.^6 ; Pain, S.D.^1 ; Stone, N.J.^3,7 ; Varner, R.L.^1 ; Yu, C.-H.^1

Physics Division, Oak Ridge National Laboratory, Oak Ridge

TN

37831, United States^1

Department of Nuclear Physics, RSPE, Australian National University, Canberra

ACT

0200, Australia^2

Department of Physics and Astronomy, University of Tennessee, Knoxville

TN

37996, United States^3

Instituto de Ciencias Nucleares, UNAM, AP 70-543, México, D.F.

04510, Mexico^4

UNIRIB, Oak Ridge Assoc. Universities, Oak Ridge

TN

37831, United States^5

Department of Physics and Astronomy, Rutgers University, New Brunswick

NJ

08903, United States^6

Department of Physics, Oxford University, Oxford

OX1 3PU, United Kingdom^7

关键词: Coulomb excitation;    Electromagnetic moments;    Nuclear structure;    Radioactive beams;    Radioactive ion beam facility;    Single particle;    Titanium targets;    Transfer reaction;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/639/1/012007/pdf
DOI  :  10.1088/1742-6596/639/1/012007

来源: IOP

【 摘 要 】

The collective and single-particle structure of nuclei in the132Sn region was recently studied by Coulomb excitation and heavy-ion induced transfer reactions using carbon, beryllium, and titanium targets. In particular, Coulomb excitation was used determine a complete set of electromagnetic moments for the first 2+states and one-neutron transfer was used to probe the purity and evolution of single-neutron states. These recent experiments were conducted at the Holifield Radioactive Ion Beam Facility at ORNL using a Csl-HPGe detector array (BareBall- CLARION) to detect scattered particles and emitted gamma rays from the in-beam reactions. A Bragg-curve detector was used to measure the energy loss of the various beams through the targets and to measure the radioactive beam compositions. A sample of the Coulomb excitation results is presented here with an emphasis placed on116Sn. In particular, the "safe Coulex" criterion for carbon targets will be analyzed and discussed.