Abstract
A set of differential cross-section data of the 1 H(d, pp)n breakup reaction at 130 and 160 MeV deuteron beam energies has been measured in the forward polar angles domain. The data were collected with the use of the Germanium Wall (FZ Julich) and BINA (KVI Groningen) detectors. This part of the phase-space is special with respect to the dominant Coulomb force influence on the system dynamics. The data are compared with the theoretical calculations based on the Argonne V18 potential supplemented with the long-range electromagnetic component. The predictions also include the Urbana IX three nucleon force model. The strongest Coulomb effects are found in regions where the relative energy of the two protons is the smallest.
Highlights
Deuteron break-up in collision with one proton, leading to a final state of three-nucleon (3N) continuum is one the simplest systems to study, providing a good testing ground for the nuclear Hamiltonian
In the very forward angular range, investigated with the Germanium Wall and BINA detectors, the dynamics is dominated with the Coulomb force influence
Precise and systematic studies of the breakup reaction in a large part of the phase space are very important for understanding of the interaction between nucleons in few-nucleon systems
Summary
Deuteron break-up in collision with one proton, leading to a final state of three-nucleon (3N) continuum is one the simplest systems to study, providing a good testing ground for the nuclear Hamiltonian. Such a process offers a rich kinematics which makes it more selective regarding the interaction. One of the most extensively studied 3N observables is the differential cross section, very sensitive to different pieces of the system dynamics like three-nucleon force (3NF), Coulomb interaction or relativistic effects. In the present work the extensive data sets obtained in a series of the experiments are used to investigate the Coulomb force influence on the differential cross section
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