Neutron-proton asymmetry dependence of spectroscopic factors in Ar isotopes
Jenny Lee, M.B. Tsang, D. Bazin, D. Coupland, V. Henzl, D. Henzlova,, M. Kilburn, W.G. Lynch, A. Rogers, A. Sanetullaev, A. Signoracci, Z.Y. Sun,, M. Youngs, K.Y. Chae, R.J. Charity, H.K. Cheung, M. Famiano, S. Hudan, P., OMalley, W.A. Peters, K. Schmitt, D. Shapira, L.G. Sobotka
TL;DR
This study measures spectroscopic factors in argon isotopes using neutron transfer reactions, revealing minimal dependence on neutron-proton asymmetry and highlighting differences with knockout reaction findings.
Contribution
It provides new experimental data on spectroscopic factors in 34Ar and 46Ar, showing weak asymmetry dependence and contrasting previous knockout reaction results.
Findings
Little reduction of spectroscopic factor in 34Ar compared to 46Ar
Correlations do not strongly depend on neutron-proton asymmetry in this region
Results align with transfer reaction studies but differ from knockout reaction trends
Abstract
Spectroscopic factors have been extracted for proton rich 34Ar and neutron rich 46Ar using the (p,d) neutron transfer reaction. The experimental results show little reduction of the ground state neutron spectroscopic factor of the proton rich nucleus 34Ar compared to that of 46Ar. The results suggest that correlations, which generally reduce such spectroscopic factors, do not depend strongly on the neutron-proton asymmetry of the nucleus in this isotopic region as was reported in knockout reactions. The present results are consistent with results from systematic studies of transfer reactions but inconsistent with the trends observed in knockout reaction measurements.
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