Momentum-space description of three-nucleon breakup reactions including the Coulomb interaction

Abstract

The Coulomb interaction between the two protons is included in the calculation of proton-deuteron breakup and of three-body electromagnetic disintegration of ${}^3\mathrm{He}$. The hadron dynamics is based on the purely nucleonic charge-dependent (CD) Bonn potential and its realistic extension CD Bonn + $\Delta$ to a coupled-channel two-baryon potential, allowing for single virtual $\Delta$-isobar excitation. Calculations are done using integral equations in momentum space. The screening and renormalization approach is employed for including the Coulomb interaction. Convergence of the procedure is found at moderate screening radii. The reliability of the method is demonstrated. The Coulomb effect on breakup observables is seen at all energies in particular kinematic regimes.

Corrected errors in Figs. 2, 10 - 12

References in corpus (3)

• Momentum-space treatment of Coulomb interaction in three-nucleon reactions with two protons
• Benchmark calculation for proton-deuteron elastic scattering observables including Coulomb
• Three-body electrodisintegration of the three-nucleon bound state with $\Delta$-isobar excitation: Processes below pion-production threshold

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