Frankfurt 2014 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 39: Struktur und Dynamik von Kernen

HK 39.3: Vortrag

Donnerstag, 20. März 2014, 14:45–15:00, HZ 4

Proton-proton elastic scattering measurements at COSY — •Zara Bagdasarian for the ANKE collaboration — Forschungszentrum Juelich, Juelich, Germany — Tbilisi State University, Tbilisi, Georgia

To construct the reliable phase shift analysis (PSA) that can successfully describe the nucleon-nucleon (NN) interaction it is necessary to measure variety of experimental observables for both proton-proton (pp) and neutron-proton (np) elastic scattering. The polarized beams and targets at COSY-ANKE facility allow a substantial contribution to the existing database. The experiment was carried out in April 2013 at ANKE using a transversely polarized proton beam incident on an unpolarized hydrogen cluster target. Six beam energies of T_p = 0.8, 1.6, 1.8, 2.0, 2.2, 2.4 GeV were used. The aim of this talk is to present the preliminary results for the analyzing power (A_y) for the pp elastic scattering in the so-far unexplored 5<θ_cm<30 angular range. Our measurements are also compared to the world data and current partial wave solutions.