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Microscopic two-nucleon overlaps and knockout reactions from 12C

Simpson, EC, Navratil, P, Roth, R and Tostevin, JA (2012) Microscopic two-nucleon overlaps and knockout reactions from 12C Physical Review C: Nuclear Physics, 86 (5), 054609.

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The nuclear structure dependence of direct reactions that remove a pair of like or unlike nucleons from a fast 12C projectile beam are considered. Specifically, we study the differences in the two-nucleon correlations present and the predicted removal cross sections when using p-shell shell-model and multi-ℏω no-core shell-model (NCSM) descriptions of the two-nucleon overlaps for the transitions to the mass A=10 projectile residues. The NCSM calculations use modern chiral two-nucleon and three-nucleon (NN+3N) interactions. The np-removal cross sections to low-lying T=0, 10B final states are enhanced when using the NCSM two-nucleon amplitudes. The calculated absolute and relative partial cross sections to the low-energy 10B final states show a significant sensitivity to the interactions used, suggesting that assessments of the overlap functions for these transitions and confirmations of their structure could be made using final-state-exclusive measurements of the np-removal cross sections and the associated momentum distributions of the forward traveling projectile-like residues.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Physics
Authors :
Simpson, EC
Navratil, P
Roth, R
Tostevin, JA
Date : 29 November 2012
DOI : 10.1103/PhysRevC.86.054609
Related URLs :
Additional Information : Copyright 2012 The American Physical Society.
Depositing User : Symplectic Elements
Date Deposited : 21 Dec 2012 12:26
Last Modified : 31 Oct 2017 14:53

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