Speaker
Dr
Saul Beceiro-Novo
(Michigan State University)
Description
The existence of exotic nuclei with $\alpha$-cluster structure has been described by several theoretical models. However, experimental data are needed to constrain these model predictions. In particular, the one-dimensional alignment of multiple $\alpha$ particles known as linear-chain structure has been highly elusive experimentally. The capabilities of the Prototype Active-Target Time-Projection Chamber (PAT-TPC) allows one to measure charged-particle decays with very low-energy thresholds and a high efficiency due to its thick gaseous active target volume. Thus, it is well suited to search for low-energy $\alpha$-cluster reactions. Radioactive-ion beams produced by the *TwinSol* facility at the University of Notre Dame were delivered to the PAT-TPC to study resonant elastic and inelastic $\alpha$ scattering of a radioactive $^{10}$Be beam that excited states in the neutron-rich nucleus $^{14}$C. Differential cross sections and excitation functions were measured. The good quantitative agreement with recent predictions by an antisymmetrized molecular dynamics model makes the 2$^+$ and 4$^+$ states observed excellent candidates for linear $\alpha$ structure states in $^{14}$C.
Primary authors
Dr
Adam Fritsch
(Department of Physics, Gonzaga University, Spokane, Washington 99258, USA)
Dr
Saul Beceiro-Novo
(Michigan State University)
Co-authors
Dr
A Howard
(ND)
Dr
A Rogers
(ANL)
Mrs
A Shore
(MSU)
Dr
A. J. Mitchell
(U of Manchester)
Dr
B Bucher
(LLNL)
Dr
Daisuke Suzuki
(Riken Nishina Center)
Dr
Daniel Bazin
(MSU)
Prof.
F. D. Becchetti
(Univ. of Michigan)
Dr
H Wang
(Shanghai INAP)
Prof.
JJ Kolata
(Notre Dame)
Dr
M Febbraro
(U of M)
Mr
M Ojaruega
(u of m)
Mr
R Torres-Isea
(U of M)
Prof.
T Suhara
(Matsue College of Technology)
Prof.
Tan Ahn
(Notre Dame)
Prof.
W Lynch
(MSU)
Prof.
Wolfgang Mittig
(MSU)
Mr
X Fang
(ND)
Dr
X Tang
(impcas)
Prof.
Y Kanada-enyo
(U of Kyoto)
Prof.
Z Chajecki
(Western Michigan Univ)
