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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
physics and astronomy
High resolution study of isovector negative parity states in the O16(He3,t)F16 reaction at 140 MeV/nucleon
Physical Review C - Nuclear Physics, Volume 79, No. 2, Article 024314, Year 2009
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Description
The isovector transitions from the ground state (g.s.) of O16 to the negative parity states in F16, i.e., the Jπ=0- g.s., the 0.193 MeV, 1- state, the 0.424 MeV, 2- state, the 0.721 MeV, 3- state, and the 4- "stretched" state at 6.372 MeV, were studied by using a high resolution O16(He3,t)F16 reaction at 140 MeV/nucleon. With the help of high energy resolution, these states were, for the first time, clearly resolved in a charge exchange reaction at an intermediate energy, which favorably excites spin-flip states. Angular distributions of the reaction cross sections were measured in the laboratory frame from 0° to 14°. Parameters of phenomenological effective interactions were derived so as to reproduce these angular distributions in distorted wave Born approximation (DWBA) calculations. The angular distribution of the 0- state could be reproduced well at θc.m.<10°. The empirical values, however, are larger by a factor of 2-2.5 in the larger angle region, where the contribution of the so-called "condensed pion field" is expected. The high resolution also enabled the decay widths of these states to be measured. © 2009 The American Physical Society.
Authors & Co-Authors
Fujita, Hirohiko
South Africa, Johannesburg
University of the Witwatersrand
South Africa, Somerset West
Ithemba Laboratory for Accelerator-based Sciences
Japan, Ibaraki
Research Center for Nuclear Physics Rcnp
Berg, Georg P.A.
Japan, Ibaraki
Research Center for Nuclear Physics Rcnp
United States, Notre Dame
University of Notre Dame
Fujita, Yoshitaka
Japan, Suita
Osaka University
Rapaport, Jacobo
United States, Athens
Ohio University
Adachi, Tatsuya
Japan, Ibaraki
Research Center for Nuclear Physics Rcnp
Japan, Suita
Osaka University
Botha, N. T.
South Africa, Cape Town
University of Cape Town
Fujimura, Hisako
Japan, Ibaraki
Research Center for Nuclear Physics Rcnp
Japan, Sendai
Tohoku University
Fujita, Kunihiro
Japan, Ibaraki
Research Center for Nuclear Physics Rcnp
Hara, Kazuhiko
Japan, Ibaraki
Research Center for Nuclear Physics Rcnp
Japan, Tsukuba
High Energy Accelerator Research Organization, Tsukuba
Hatanaka, Kichiji
Japan, Ibaraki
Research Center for Nuclear Physics Rcnp
Kamiya, Junichiro
Japan, Ibaraki
Research Center for Nuclear Physics Rcnp
Japan, Kashiwa
Japan Atomic Energy Agency
Kawabata, Takahiro
Japan, Tokyo
The University of Tokyo
Nakanishi, Kosuke
Japan, Ibaraki
Research Center for Nuclear Physics Rcnp
Japan, Tokyo
The University of Tokyo
Neveling, Retief
South Africa, Somerset West
Ithemba Laboratory for Accelerator-based Sciences
Sakamoto, Naruhiko
Japan, Ibaraki
Research Center for Nuclear Physics Rcnp
Sakemi, Yasuhiro
Japan, Ibaraki
Research Center for Nuclear Physics Rcnp
Japan, Sendai
Tohoku University
Shimbara, Yoshihiro
Japan, Suita
Osaka University
Japan, Niigata
Niigata University
Shimizu, Yohei
Japan, Ibaraki
Research Center for Nuclear Physics Rcnp
Japan, Sendai
Tohoku University
Smit, Frederick D.
South Africa, Somerset West
Ithemba Laboratory for Accelerator-based Sciences
Uchida, Makoto
Japan, Kyoto
Kyoto University
Japan, Tokyo
Tokyo Institute of Technology
Wakasa, Tomotsugu
Japan, Ibaraki
Research Center for Nuclear Physics Rcnp
Japan, Fukuoka
Kyushu University
Yoshifuku, M.
Japan, Suita
Osaka University
Yosoi, Masaru
Japan, Ibaraki
Research Center for Nuclear Physics Rcnp
Japan, Kyoto
Kyoto University
Zegers, Remco G.T.
United States, East Lansing
Michigan State University
Statistics
Citations: 24
Authors: 24
Affiliations: 16
Identifiers
Doi:
10.1103/PhysRevC.79.024314
ISSN:
05562813
e-ISSN:
1089490X
Study Design
Phenomenological Study
Study Approach
Qualitative