Quasi-free limit in the deuteron-deuteron three-body break-up process

Detailed measurements of vector and tensor analyzing powers of the 2H(~d, dp)n breakup process are presented. The data were obtained using a polarized deuteron-beam with an energy of 65 MeV/nucleon impinging on a liquid-deuterium target. The experiment was conducted at the AGOR facility at KVI using the BINA 4 -detection system. The focus of this contribution is to analyze data of the dd scattering process in the regime at which the neutron acts as a spectator, which we refer to as the quasi-free (QF) limit. To achieve this, events for which the final-state deuteron and proton are coplanar have been analyzed and the data have been sorted for various reconstructed momenta of the missing neutron. In the limit of vanishing neutron momentum and at small deuteron-proton momentum transfer, the data match very well with measured and predicted spin observables of the elastic deuteron-proton scattering process. The agreement deteriorates rapidly with increasing neutron momentum and deuteron-proton momentum transfer. The results of coplanar configurations in four-body phase space are compared with the results of recent available theoretical calculations based on the Single-Scattering Approximation

Few-nucleon system dynamics studied via deuteron-deuteron collisions at 160 MeV

Four nucleon scattering at intermediate energies provides unique opportunities to study effects of the two key ingredients of the nuclear dynamics, the nucleon-nucleon P-wave (NNP-wave) and the three-nucleon force (3NF). This is possible only with systematic and precise data, in conjunction with exact theoretical calculations. Using the BINA detector at KVI Groningen, the Netherlands, a rich set of differential cross section of the 2H(d, dp)n breakup reaction at 160 MeV deuteron beam energy has been measured. Besides the three-body breakup, also cross sections of the 2H(d, 3He)n proton transfer reaction have been obtained. The data are compared to the recent calculations for the three-cluster breakup

Differential Cross Sections and Analyzing Powers of the Three-Body Break-Up Channel in Deuteron-Deuteron Scattering at 65 MeV/nucleon

In this contribution, the results for the differential cross sections and a rich set of vector and tensor analyzing powers are presented for various configurations of the three-body break-up channel of (formula presented). The data were obtained at KVI using a polarised deuteron beam with a beam energy of 65 MeV/nucleon and a liquid deuterium target in combination with a (formula presented) detection system carrying the name Big-Instrument for Nuclear-Polarization Analysis (BINA). This work extends the results from an earlier study reported in [1]. In particular, additional kinematical configurations and spin observables were analyzed and obtained.</p

Differential Cross Sections and Analyzing Powers of the Three-Body Break-Up Channel in Deuteron-Deuteron Scattering at 65 MeV/nucleon

In this contribution, the results for the differential cross sections and a rich set of vector and tensor analyzing powers are presented for various configurations of the three-body break-up channel of (formula presented). The data were obtained at KVI using a polarised deuteron beam with a beam energy of 65 MeV/nucleon and a liquid deuterium target in combination with a (formula presented) detection system carrying the name Big-Instrument for Nuclear-Polarization Analysis (BINA). This work extends the results from an earlier study reported in [1]. In particular, additional kinematical configurations and spin observables were analyzed and obtained