title: Three-nucleon force and the A(y) puzzle in intermediate energy p--> + d and d--> + p elastic scattering
abstract: New vector analyzing-power data on p-->+d elastic scattering at E(p) = 150 and 190 MeV have been measured. These are presented together with existing data and with recent d-->+p vector and tensor analyzing power data at E(d) = 270 MeV. The strong negative extremum of both vector analyzing powers A(p)(y) and A(d)(y) at straight theta(c.m.) approximately 80 degrees -120 degrees is underestimated by Faddeev calculations using modern NN forces. Inclusion of the Tucson-Melbourne 3N force shifts the minima upwards, but with conflicting results for A(p)(y), and leading to a good description for A(d)(y). An A(p)(y) puzzle, previously thought to exist at energies E(N)</=30 MeV only, appears to exist also at intermediate energies.
authors.affiliation: Kernfysisch Versneller Instituut, Zernikelaan 25, 9747 AA Groningen, The Netherlands.
authors.initials: R
authors.lastname: Bieber
authors.initials: W
authors.lastname: Glockle
authors.initials: J
authors.lastname: Golak
authors.initials: MN
authors.lastname: Harakeh
authors.initials: D
authors.lastname: Huber
authors.initials: H
authors.lastname: Huisman
authors.initials: N
authors.lastname: Kalantar-Nayestanaki
authors.initials: H
authors.lastname: Kamada
authors.initials: JG
authors.lastname: Messchendorp
authors.initials: A
authors.lastname: Nogga
authors.initials: H
authors.lastname: Sakai
authors.initials: N
authors.lastname: Sakamoto
authors.initials: M
authors.lastname: Seip
authors.initials: M
authors.lastname: Volkerts
authors.lastname: van Der Werf SY
authors.initials: H
authors.lastname: Witala