<span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">C</mi><mo>(</mo><mo>γ</mo></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>12</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math></span>,p) reaction at <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi>E</mi></mrow><mrow><mo>γ</mo></mrow></msub></mrow></math></span>=60 MeV

A. C. Shotter; S. Springham; D. Branford; J. Yorkston; J. C. McGeorge; B. Schoch; P. Jennewein

doi:10.1103/PhysRevC.37.1354

Rapid Communication

${}^{12}{C (γ}$ ,p) reaction at $E_{γ}$ =60 MeV

A. C. Shotter, S. Springham, D. Branford, J. Yorkston, J. C. McGeorge, B. Schoch, and P. Jennewein

Phys. Rev. C 37, 1354(R) – Published 1 March 1988

Abstract

The ${}^{12}C$ (γ,p $)^{11}$ B reaction has been studied using tagged photons and a new type of detector system that allowed proton groups leading to ${}^{11}B$ excited states to be resolved for the first time. A comparison between the intensities of states excited in the (γ,p) and (e,e’p) reactions reveals large differences, in particular for the 6.8 MeV doublet of ${}^{11}B$ . This may indicate the importance of two-nucleon effects for the (γ,p) reaction which contrasts the single nucleon virtual photon absorption observed for (e,e’p) reactions.