Abstract
The experiment on dp non-mesonic breakup at Internal Target Station at Nuclotron is presented. Recent results on the study of the dp-breakup reaction with 300–500[Formula: see text]MeV unpolarized deuteron beam at Internal Target Station at Nuclotron are discussed. Selection procedure of useful events for the [Formula: see text] reaction with the registration of two protons is shown. Further scientific program with polarized and unpolarized deuterons is discussed.
Highlights
The successes of meson-exchange theories in the description of two-nucleon observables directed the research towards systems composed of three nucleons (3N), whereThis is an Open Access article published by World Scientific Publishing Company
Models of N N forces describe the long range interaction part according to the meson-exchange, while the short range is based on phenomenology, adjusted by fitting a certain number of parameters to the NN scattering data
Obtained at Nuclotron Breakup events collected for an unpolarized beam were analyzed at a set of kinematical points, defined by polar emission angles of the two protons, Θ1, Θ2, their relative azimuthal angle Φ12 and their energies, expressed by a variable S
Summary
The successes of meson-exchange theories in the description of two-nucleon observables directed the research towards systems composed of three nucleons (3N), where. The obtaining of the additional polarization data in the dp-interaction in the wide energy range more is very desirable for the study of the spin structure of 2N and 3N forces.[6] To investigate the details of the dynamics of the 3N system, in addition to elastic N d scattering data, reliable deuteron breakup data sets, covering large regions of the available phase space, are needed. The purpose of Deuteron Spin Structure experimental program is to obtain the information on the spin-dependent parts of 2-nucleon and 3-nucleon forces from two processes[9, 10]: dp-elastic scattering in a wide energy range[11,12,13,14] and dp non-mesonic breakup with two protons detection at energies 200–500 MeV.[15] In particular, it is planned to measure Ay, Ayy and Axx analyzing powers in dp-breakup at Internal Target Station at 200–500 MeV. In this report the status of the experiment at internal target station (ITS) at Nuclotron preparation and first beam results are presented
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