<span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">C</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>12</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow><mo>(</mo><mi>π</mi><mo>,</mo><mi> </mi><mrow><msup><mrow><mi>π</mi></mrow><mrow><mo>′</mo></mrow></msup></mrow><mo>)</mo></math></span> to giant dipole resonance region

C. Fred Moore; Carol J. Harvey; Christopher L. Morris; William B. Cottingame; Steven J. Greene; D. B. Holtkamp; H. T. Fortune

doi:10.1103/PhysRevC.26.2561

${}^{12}C (π, π^{'})$ to giant dipole resonance region

C. Fred Moore, Carol J. Harvey, Christopher L. Morris, William B. Cottingame, Steven J. Greene, D. B. Holtkamp, and H. T. Fortune

Phys. Rev. C 26, 2561 – Published 1 December 1982

Abstract

Strong forward-angle excitation of a group of states at 20-28 MeV in ${}^{12}C (π, π^{'})$ is dominated by the isovector giant dipole resonance but seems to indicate, in addition, substantial spin-flip strength.

NUCLEAR REACTIONS ${}^{12}C (π^{\pm}, π^{\pm'})$ , $T_{π} = 180$ MeV, measured $σ (E_{π}, θ)$ , evidence for GDR and spin-flip giant resonance excitation.