8-12 July 2013
Quasi-free nucleon knockout contribution in 40Ca(p,p') inclusive scattering at 200 MeV
Presented by Dr. Iyabo USMAN on 10 Jul 2013 from 14:50 to 15:10
Type: Oral Presentation
Track: Track B - Nuclear, Particle and Radiation Physics
The Distorted Wave Impulse Approximation (DWIA) has been used to measure the extent of contributions due to quasi-free proton and neutron knockout in inclusive inelastic proton-scattering reactions from 40Ca(p,2p)39K and 40Ca(p,pn)39Ca. Such reactions contribute to the underlying background in the continuum of the Isoscalar Giant Quadrupole Resonance (ISGQR) region. In the DWIA, the three-body cross-section for a reaction is considered with final relative nucleon-nucleon energy prescription (FEP) in the evaluation of cross sections. Three distorted waves are generated using different optical potentials for different channels involved. The two-body cross-section is then evaluated using on-shell amplitude interpolated from phase shifts for projectile-ejectile scattering. Quantitative description of proton and neutron contributions and the influence on the ISGQR will be discussed.
- Prof. John CARTER University of the Witwatersrand, Johannesburg.
- Prof. Elias SIDERAS-HADDAD University of the Witwatersrand, Johannesburg
- Prof. Paul PAPKA Stellenbosch University
- Mr. Maxwel JINGO University of the Witwatersrand, Johannesburg