Separation of current and spin contributions to isovector <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>M</mi><mn>1</mn><mn></mn></math> excitations by means of the (<math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>e</mi></math>,<math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mi>e</mi></mrow><mrow><mo>′</mo></mrow></msup></mrow></math>) and (<math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>p</mi></math>,<math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>n</mi></math>) reactions

F. Petrovich; W. G. Love; R. J. McCarthy

doi:10.1103/PhysRevC.21.1718

Separation of current and spin contributions to isovector $M 1$ excitations by means of the ( $e$ , $e^{'}$ ) and ( $p$ , $n$ ) reactions

F. Petrovich, W. G. Love, and R. J. McCarthy

Phys. Rev. C 21, 1718 – Published 1 May 1980

Abstract

The orbital current and spin contributions to isovector $M 1$ excitations in light nuclei are studied microscopically by combining information from inelastic electron scattering at small momentum transfers with that obtained from recent measurements of ( $p$ , $n$ ) cross sections at forward angles. The ( $p$ , $n$ ) reaction is studied within the distorted-wave approximation using a $G$ -matrix interaction and shell model wave functions and the ( $e$ , $e^{'}$ ) scattering is calculated in a plane wave approximation.

NUCLEAR REACTIONS Charge exchange scattering, $E_{p} = 62$ MeV, cross sections; inelastic electron scattering; targets ${}^{12}C$ , ${}^{24}{Mg}$ , ${}^{28}{Si}$ .