Journal Article

PreJuSER-8600

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Three-nucleon force effects in the H-1(d,pp)n reaction at 135 MeV/nucleon

Sekiguchi, K. ; Sakai, H. ; Witala, H. ; Glöckle, W. ; Golak, J. ; Itoh, K. ; Kamada, H. ; Kawabata, T. ; Kuboki, H. ; Maeda, Y. ; Nogga, A.FZJ* ; Okamura, H. ; Sakaguchi, S. ; Sakamoto, N. ; Sasamoto, Y. ; Sasano, M. ; Skibinski, R. ; Suda, K. ; Takahashi, Y. ; Uesaka, T. ; Wakasa, T. ; Yako, K.

2009
Inst. Woodbury, NY

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Please use a persistent id in citations: http://hdl.handle.net/2128/11115  doi:10.1103/PhysRevC.79.054008

Abstract: The deuteron to proton polarization transfer coefficients K-yy(y') and K-y(y') together with the deuteron analyzing powers are measured in three coplanar configurations of the deuteron-proton breakup reaction with a 135-MeV/nucleon polarized deuteron beam at the RIKEN Accelerator Research Facility. The data are compared with theoretical predictions based on exact solutions of the three-nucleon (3N) Faddeev equations with high-precision nucleon-nucleon (NN) forces, alone or combined with two 3N force (3NF) models, the 2 pi-exchange Tucson-Melbourne(')(99) (TM(')99) and Urbana IX. Large 3NF effects have been found for all the measured observables. Predicted effects are supported by the data, with the exception of the vector analyzing power A(y)(d). For this observable, theory based on only NN forces is sufficient to explain the data. The behavior of the breakup analyzing powers is found to be different from the corresponding observables in elastic nucleon-deuteron scattering.

Keyword(s): J

Note: We acknowledge the outstanding work of the RIKEN Accelerator group in delivering excellent polarized deuteron beams. We thank K. Sagara, T. Kudoh, H. Ohira, M. Tomiyama, and T. Ishida for their support during the test experiment of the detector at the Tandem Accelerator of Kyushu University. Thisworkwas supported financially in part by the Grants-in-Aid for Scientific Research Nos. 04402004 and 10304018 of the Ministry of Education, Culture, Sports, Science, and Technology of Japan. It was also partially supported by the Helmholtz Association through funds provided to the virtual institute "Spin and Strong QCD" (VH-VI-231), and by the 2008-2011 Polish Science Funds as a research project No. N N202 077435. The numerical calculations were performed on the IBM Regatta p690+ of the NIC in Julich, Germany.

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Contributing Institute(s):

1. Theoretische Kernphysik (IKP-3)

Research Program(s):

1. Physik der Hadronen und Kerne (P53)

Appears in the scientific report 2009

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