A. C. Fonseca

Momentum-space treatment of the Coulomb interaction in three-nucleon reactions with two protons

The Coulomb interaction between two protons is included in the calculation of proton-deuteron elastic scattering, radiative proton-deuteron capture, and two-body electromagnetic disintegration of

Four-nucleon scattering: Ab initio calculations in momentum space

^{3}\mathrm{He}

Ab initio four-body calculation of n - He 3 , p - H 3 , and d - d scattering

. The hadron dynamics is based on the purely nucleonic charge-dependent (CD) Bonn potential and its realistic extension CD Bonn

Evidence of the Coulomb-force effects in the cross-sections of the deuteron-proton breakup at 130 MeV

+\phantom{\rule{0.3em}{0ex}}\ensuremath{\Delta}

Four-body calculation of proton-3He scattering.

to a coupled-channel two-baryon potential, allowing for single virtual

Benchmark calculation for proton-deuteron elastic scattering observables including the Coulomb interaction

\ensuremath{\Delta}

Trinucleon photonuclear reactions withΔ-isobar excitation: Processes below pion-production threshold

-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 observables is seen at low energies for the entire kinematic regime. In proton-deuteron elastic scattering at higher energies the Coulomb effect is confined to forward scattering angles; the

Survey of charge symmetry breaking operators for d d → α π 0

\ensuremath{\Delta}

Four-nucleon system with Δ-isobar excitation

-isobar effect found previously remains unchanged by the Coulomb effect. In electromagnetic reactions the Coulomb effect competes with other effects in a complicated way.

Low energy n-{sup 3}H scattering: A novel testground for nuclear interactions

The four-body equations of Alt, Grassberger, and Sandhas are solved for