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arXiv · 1101.5557

Measurement and analysis of the pp -> pp gamma reaction at 310 MeV

A. Johansson·H. Haberzettl·K. Nakayama·C. Wilkin
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Abstract

The pp -> pp gamma reaction has been studied at a beam energy of 310 MeV by detecting both final protons at the PROMICE-WASA facility and identifying the photon through the resulting missing-mass peak. The photon angular distribution in the center-of-mass system and those of the proton-proton relative momentum with respect to the beam direction and to that of the recoil photon were determined reliably up to a final pp excitation energy of Epp ~ 30 MeV. Except for very small Epp values, the behavior of these distributions with excitation energy is well reproduced by a new refined model of the hard bremsstrahlung process. The model reproduces absolutely the total cross section and its energy dependence to within the experimental and theoretical uncertainties.

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A. Johansson, H. Haberzettl, K. Nakayama, C. Wilkin. 2011-01-28. Measurement and analysis of the pp -> pp gamma reaction at 310 MeV. https://doi.org/10.1103/physrevc.83.054001

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