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Dynamical relativistic effects in quasielastic 1p-shell proton knockout from 16O
Platchkov1, Pomatsalyuk, Prout
1Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
Physical Review Letters
|October 6, 2000
Summary
This study measured proton knockout from oxygen-16 using electron scattering. The results align with theoretical models, suggesting dynamical relativistic effects at higher missing momentum.
Area of Science:
- Nuclear Physics
- Quantum Chromodynamics
- Electron Scattering
Background:
- Understanding nuclear structure and nucleon interactions is crucial.
- Quasielastic electron scattering provides insights into nuclear dynamics.
Purpose of the Study:
- To measure the cross section for quasielastic 1p-shell proton knockout in the 16O(e,e(')p) reaction.
- To extract response functions and asymmetry for 1p(1/2) and 1p(3/2) states.
Main Methods:
- Utilized electron scattering (e,e(')p) on oxygen-16.
- Analyzed data at specific energy transfer (omega) and momentum transfer squared (Q2).
- Employed relativistic distorted wave impulse approximation (RDWIA) calculations.
Main Results:
- Measured cross sections and extracted response functions R(L+TT), R(T), R(LT), and asymmetry A(LT).
- Data are well described by RDWIA calculations.
- Observed structure in A(LT) at high missing momentum indicates dynamical relativistic effects.
Conclusions:
- RDWIA calculations successfully describe the experimental data.
- The findings suggest the presence of significant dynamical relativistic effects in proton knockout reactions at higher missing momenta.
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