Phys. Rev. C
65,
064316
(2002)
[12 pages]
Polarization transfer in the 16O(p,p′) reaction at forward angles and structure of the spin-dipole resonances
T. Kawabata et al.
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T. Kawabata*, T. Ishikawa, M. Itoh, M. Nakamura, H. Sakaguchi, H. Takeda, T. Taki†, M. Uchida, Y. Yasuda, and M. Yosoi
Department of Physics, Kyoto University, Kyoto 606-8502, Japan
H. Akimune and K. Yamasaki
Department of Physics, Konan University, Kobe, Hyogo 658-8501, Japan
G. P. A. Berg, H. Fujimura, K. Hara, K. Hatanaka, J. Kamiya, T. Noro‡, E. Obayashi, T. Wakasa, and H. P. Yoshida
Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
B. A. Brown
Department of Physics and Astronomy and National Superconducting Laboratory, Michigan State University, East Lansing, Michigan 48824-1321
H. Fujita, Y. Fujita, Y. Shimbara, and H. Ueno§
Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
M. Fujiwara
Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan Advanced Science Research Center, Japan Atomic Energy Research Institute, Tokai, Ibaraki 319-1195, Japan
K. Hosono
Department of Engineering, Himeji Institute of Technology, Hyogo 678-1297, Japan
A. Tamii
Department of Physics, University of Tokyo, Hongo, Tokyo 113-0033, Japan
H. Toyokawa
Japan Synchrotron Radiation Research Institute, Hyogo 679-5198, Japan
Received 8 January 2002; published 6 June 2002
Cross sections and polarization transfer observables in the 16O(p,p′) reactions at 392 MeV were measured at several angles between θlab=0° and 14°. The non-spin-flip (ΔS=0) and spin-flip (ΔS=1) strengths in transitions to several discrete states and broad resonances in 16O were extracted using a model-independent method. The giant resonances in the energy region of Ex=19–27 MeV were found to be predominantly excited by ΔL=1 transitions. The strength distribution of spin-dipole transitions with ΔS=1 and ΔL=1 were deduced. The obtained distribution was compared with a recent shell model calculation. Experimental results are reasonably explained by distorted-wave impulse-approximation calculations with the shell model wave functions.
© 2002 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevC.65.064316
DOI:
10.1103/PhysRevC.65.064316
PACS:
24.30.Cz, 24.70.+s, 25.40.Ep, 27.20.+n
*Present address: Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan. Email address: takahiro@rcnp.osaka-u.ac.jp †Present address: Asaka Technology Development Center, Fuji Photo Film Co., Ltd., Asaka, Saitama 351-8585, Japan. ‡Present address: Department of Physics, Kyushu University, Fukuoka 812-8581, Japan. §Present address: RIKEN (The Institute for Physical and Chemical Research), Wako, Saitama 351-0198, Japan.
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