Precision measurement of vector and tensor analyzing powers in elastic deuteron-proton scattering

Details Precision measurement of vector and tensor analyzing powers in elastic deuteron-proton scattering Precision measurement of vector and tensor analyzing powers in elastic deuteron-proton scattering

2006-11-15

arxiv.org/abs/nucl-ex/0611027v2

Eur.Phys.J.A31:383-391,2007

Physics

Nuclear Physics

Nuclear Experiment

Scientific paper

10.1140/epja/i2006-10228-0

High precision vector and tensor analyzing powers of elastic deuteron-proton d+p scattering have been measured at intermediate energies to investigate effects of three-nucleon forces (3NF). Angular distribution in the range of 70-120 degree in the center-of mass frame for incident-deuteron energies of 130 and 180 MeV were obtained using the RIKEN facility. The beam polarization was unambiguously determined by measuring the 12C(d,alpha)10B(2+) reaction at 0 degree. Results of the measurements are compared with state-of-the-art three-nucleon calculations. The present modeling of nucleon-nucleon forces and its extension to the three-nucleon system is not sufficient to describe the high precision data consistently and requires, therefore, further investigation.

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