The~Space Star Anomaly in proton-deuteron breakup cross-section occurs at energies of about 10~MeV. Data for higher energies are sparse. Therefore, a~systematic scan over star configurations in the~range of intermediate energies between 50 and 100 MeV/nucleon is carried out on the~basis of data collected with the~large acceptance BINA detector.
The~preliminary cross section results for forward star configurations at 80 MeV/nucleon slightly surpass the~theoretical calculations, but the~systematic uncertainties are still under study.
Also, a~new variable describing rotation of star configurations is proposed.
Experimental data for deuteron breakup by protons in collinear geometry at 25.00 MeV are compared with the predictions of rigorous Faddeev calculations using the Paris potential and with those of the Doleschall code. The Paris potential significantly underdetermines the breakup cross section in collinear geometry. The explanation for this discrepancy is not entirely clear at this time.
Deuteron breakup reactions are basic laboratories for testing nuclear force models. Recent improvements in the data analysis allow for direct identification of neutrons in the BINA detection setup. This opens up the opportunity to study new aspects of few-nucleon system dynamics like charge dependence of nuclear force or Coulomb interaction.
In this paper we determine regions along the kinematical curves where differential cross section of deuteron-proton breakup reactions can be measured by the proton-neutron and proton-proton coincidences simultaneously.
%In this paper we determine regions along the kinematical curves where differential cross section of $^1$H$(d,pp)n$ and $^1$H$(d,pn)p$ breakup reactions overlap.
This is particularly useful for validation of the neutron detection technique.
The JISP16 nucleon-nucleon potential has been applied to
investigations of the nucleon induced deuteron breakup reaction at the
incoming nucleon laboratory energies E = 13 MeV and E = 65 MeV. We have
found that for the studied process the JISP16 force gives a description
of the exclusive cross section, which is generally similar to the ones
obtained with the standard realistic nucleon-nucleon AV18 interaction.
However, there are some regions of the phase space where the
differential cross sections predicted by the JISP16 and AV18 models,
differ by more than 100 %. These special kinematical configurations may
possibly be useful to refit the JISP16 force parameters.
Current stage of studies of the star configurations at intermediate energies with the use of the BINA detector