EPJ

2021 Impact factor 3.131
EPJ A - Hadrons and Nuclei
Hadrons and Nuclei
Eur. Phys. J. A 16, 387-392 (2003)
DOI: 10.1140/epja/i2002-10050-8

Single-particle quadrupole electromagnetic transitions in $\mth{p}$-shell and $\mth{sd}$-shell nuclei

R.A. Radhi

Department of Physics, College of Science, University of Baghdad, Baghdad, Iraq

baguniv@uruklink.net

(Received: 18 April 2002 / Revised version: 28 June 2002 / Published online: 6 March 2003)

Abstract
Electron scattering Coulomb form factors for the single-particle quadrupole transitions in p-shell and sd-shell nuclei have been studied. Core polarization effects are included through a microscopic theory that includes excitations from the core orbits up to higher orbits with $2\hbar \omega $ excitations. The modified surface delta interaction is adopted as a residual interaction. The results are discussed for the ( $1p_{1/2}^{-1} \to 1p_{3/2}^{-1}$) proton transition in $\chem{^{{15}}N}$, ( $1d_{5/2} \to 2s_{1/2} $) neutron transition in $\chem{^{{17}}O}$ and ( $1d_{3/2}^{-1} \to 2s_{1/2}^{-1} $) proton transition in $\chem{^{{39}}K}$. The inclusion of core polarization effects modifies the form factors markedly and describes the experimental data very well in both the absolute strength and the momentum transfer dependence.

PACS
25.30.Dh - Inelastic electron scattering to specific states.
21.60.Cs - Shell model.
27.20.+n - $5 \leq A \leq 19$ .
27.40.+z - $39 \leq A \leq 58$ .

© Società Italiana di Fisica, Springer-Verlag 2003

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