Search for three-nucleon force effects in analyzing powers for (p)over-right-arrowd elastic scattering

K Ermisch*, AM van den Berg, R Bieber, W Glockle, J Golak, M Hagemann, VM Hannen, MN Harakeh, MA de Huu, N Kalantar-Nayestanaki, H Kamada, M Kis, J Kuros-Zolnierczuk, M Mahjour-Shafiei, A Micherdzinska, A Nogga, R Skibinski, H Witala, HJ Wortche

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

110 Citations (Scopus)


A series of measurements have been performed at KVI to obtain the vector analyzing power Ay Of the H-2((p) over right arrow, pd) reaction as a function of incident beam energy at energies of 120, 135, 150, and 170 MeV. For all these measurements, a range of upsilon (c.m) from 30 degrees to 170 degrees has been covered. The purpose of these investigations is to observe possible spin-dependent effects beyond two-nucleon forces. When compared to the,predictions of Faddeev calculations, based on two-nucleon forces only, significant deviations are observed at all energies and at center-of-mass angles between 70 degrees and 130 degrees. The addition of present-day three-nucleon forces does not improve the description of the data, demonstrating the still insufficient understanding of the properties of three-nucleon systems.

Original languageEnglish
Pages (from-to)5862-5865
Number of pages4
JournalPhysical Review Letters
Issue number26
Publication statusPublished - 25-Jun-2001



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