30 July 2023 to 4 August 2023
Alte Mensa
Europe/Berlin timezone

Study of Three-Nucleon Dynamics in the dp breakup collisions using the WASA detector at COSY-Juelich

31 Jul 2023, 16:00
15m
Atrium Maximum (Alte Mensa)

Atrium Maximum

Alte Mensa

Speaker

Ms Barbara Klos (University of Silesia)

Description

An experiment to investigate the 1H(d,pp)n breakup reaction using a deuteron beam of 300, 340, 380 and 400 MeV (150, 170, 190, 200 MeV/nucleon) and the WASA (Wide Angle Shower Apparatus) detector, has been performed at the Cooler Synchrotron COSY-Juelich. Due to almost 4π acceptance and moderate detection threshold of the WASA system, differential cross section data have been collected in a large part of the breakup reaction phase space. The set of proton-proton coincidences registered at Forward Detector at the beam energy of 170 MeV/nucleon has been analysed on dense grid of kinematic variables, giving in total around 5600 data points. The cross section data are compared to theoretical predictions based on the state-of-the-art nucleon-nucleon potentials, combined with three-nucleon force, Coulomb interaction or carried out in a relativistic regime. Quantitative analysis of the description of the cross section data provided by various theoretical calculations in terms of χ2-like variables will be discussed. In addition, first results for the differential cross sections for selected kinematical configurations defined
by the polar angles θ1 and θ2 and the relative azimuthal angle ϕ12 for the deuteron breakup at 190 MeV/nucleon will be presented.

Primary author

Ms Barbara Klos (University of Silesia)

Presentation materials