Complete set of deuteron Analyzing Powers for $dp$ Elastic Scattering at 70--300 MeV/nucleon and Three-Nucleon Forces

Few-nucleon scattering at intermediate energies ($E/A \gtrsim 100 \rm MeV$)
is one attractive approach to investigate the dynamical aspects of three-nucleon forces (3NFs), such as momentum and/or spin dependences. With the aim of clarifying roles of the 3NFs in nuclei
the experimental programs with polarized deuterons beams at intermediate energies
are in progress at RIKEN RI Beam Factory (RIBF). We have measured all deuteron
analyzing powers ($iT_{11}$, $T_{20}$, $T_{21}$, and $T_{22}$) for deuteron--proton ($dp$) elastic scattering at 70--300 MeV/nucleon, typically in step of 50 MeV/nucleon.The obtained high precision data are compared with the results of three-nucleon Faddeev calculations based on the nucleon-nucleon (NN) potentials; $i.e.$ CD Bonn, Argonne V$_{18}$, Nijmegen I, and II, alone or combined with the Tucson-Melbourne'99 and the Urbana IX 3NFs. Large discrepancies between the pure NN theory and the data, which are not resolved even by adding the current 3NFs, are found at the c.m. backward angles for almost all the deuteron analyzing powers with increasing an incident energy.
In the meeting the comparison between the data and the calculations based on the $\chi$ EFT potentials will also be presented.