Eur. Phys. J. A (2003) 18: 293-296
https://doi.org/10.1140/epja/i2002-10219-1

pd scattering at 250 MeV and three-nucleon forces

¹ Research Center for Nuclear Physics, Osaka University, 567-0047, Ibaraki, Osaka, Japan
² Department of Physics, University of Tokyo, 113-0033, Bunkyo, Tokyo, Japan
³ Department of Physics, Kyushu University, 812-8581, Hakozaki, Fukuoka, Japan
⁴ Joint Institute for Nuclear Researches, 141980, Dubna, Russia

^* e-mail: hatanaka@rcnp.osaka-u.ac.jp

Abstract

We have measured angular distributions of the differential cross-section, the analyzingpower and all of the spin transfer coefficients K _y ^y’, K _x ^x’, K _z ^x’, K _x ^z’, and K _z ^z’ for the pd elastic scattering at 250 MeV. These are the first measurements of a complete set of proton polarization observables for pd elastic scattering at intermediate energies. The present data are compared with theoretical predictions based on exact solutions of the three-nucleon Faddeev equations and modern realistic nucleon-nucleon potentials combined with three-nucleon forces (3NF), namely the Tucson-Melbourne (TM) 2-exchange model, a modification thereof (TM’) closer to chiral symmetry, and the Urbana IX model.