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APS » Journals » Phys. Rev. Lett. » Volume 84 » Issue 23
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Phys. Rev. Lett. 84, 5288–5291 (2000)

Precise Measurement of dp Elastic Scattering at 270 MeV and Three-Nucleon Force Effects

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H. Sakai1,5,*, K. Sekiguchi1, H. Witała2, W. Glöckle3, M. Hatano1, H. Kamada3, H. Kato1, Y. Maeda1, A. Nogga3, T. Ohnishi1, H. Okamura4, N. Sakamoto5, S. Sakoda1, Y. Satou5, K. Suda4, A. Tamii1, T. Uesaka4, T. Wakasa6, and K. Yako1
1Department of Physics, University of Tokyo, Bunkyo, Tokyo 113-0033, Japan
2Institute of Physics, Jagellonian University, PL-30059 Cracow, Poland
3Institut für Physik II, Ruhr-Universität Bochum, D-44780 Bochum, Germany
4Department of Physics, Saitama University, Urawa, Saitama 338-8570, Japan
5The Institute of Physical and Chemical Research (RIKEN), Wako, Saitama 351-0198, Japan
6Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan

Received 22 February 2000; published in the issue dated 5 June 2000

The cross section, the deuteron vector Ayd and tensor analyzing powers Aij, the polarization transfer coefficients Kijy′, and the induced polarization Py′ were measured for the dp elastic scattering at 270 MeV. The cross section and Ayd are well reproduced by Faddeev calculations with modern data-equivalent nucleon-nucleon forces plus the Tucson-Melbourne three-nucleon force. In contrast, Aij, Kijy′, or Py′ are not described by such calculations. These facts indicate the deficiencies in the spin dependence of the Tucson-Melbourne force and call for extended three-nucleon force models.

© 2000 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.84.5288
DOI:
10.1103/PhysRevLett.84.5288
PACS:
21.30.-x, 24.10.-i, 24.70.+s, 25.10.+s

*Electronic address: sakai@phys.s.u-tokyo.ac.jp

 
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