Binding-energy independence of reduced spectroscopic strengths derived from (p, 2p) and (p, pn) reactions with nitrogen and oxygen isotopes - INSPIRE

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Binding-energy independence of reduced spectroscopic strengths derived from (p, 2p) and (p, pn) reactions with nitrogen and oxygen isotopes

Aug 28, 2018

6 pages

Published in:

Phys.Lett.B 785 (2018) 511-516

Published: Oct 10, 2018

e-Print:

1808.09342 [nucl-th]

DOI:

10.1016/j.physletb.2018.08.058

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Abstract: (Elsevier)

A campaign of intermediate energy (300–450 MeV/u) proton-induced nucleon knockout measurements in inverse kinematics has been recently undertaken at the R 3 B/LAND setup at GSI. We present a systematic theoretical analysis of these data with the aim of studying the quenching of the single-particle strengths and its binding-energy dependence. For that, the measured semi-inclusive (p,2p) and (p,pn) cross sections are compared with theoretical predictions based on single-particle cross sections derived from a novel coupled-channels formalism and shell-model spectroscopic factors. A systematic reduction of about 20–30% is found, with a very limited dependence on proton–neutron asymmetry.

Note:

8 pages, 3 figures

(p,2p) and (p,pn)
Transfer to continuum
“Quenching” factors
[formula omitted] and [formula omitted]

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