538 research outputs found

    Fermi and Gamow-Teller Strength in Charge Exchange with Radioactive Beams

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    At forward angles, and bombarding energies E > 200 MeV, the (p,n) and (n,p) reactions are thought to be directly proportional to the Gamow-Teller transition strengths in the nuclei. Assuming that this relationship also holds for charge exchange induced by high-energy heavy ions, it would be very useful in studies with radioactive beams. Contrary to this expectation, we show that the determination of Gamow-Teller and Fermi matrix elements from heavy-ion charge-exchange at forward angles is very inaccurate.Comment: 9 pages, RevTeX, 4 PostScript figures available upon reques

    A Study of the 7-Li(p,n) 7-Be Excitation Function at Intermediate Energies Using Residual Activity

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    Supported by the National Science Foundation and Indiana Universit

    A Study of the 7-Li(p,n)7-Be Excitation Function at Intermediate Energies Using Residual Activity

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    This work was supported by National Science Foundation Grants PHY 76-84033A01, PHY 78-22774, and Indiana Universit

    Gamow-Teller Matrix Elements and the (p,n) Reaction

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    This research was sponsored by the National Science Foundation Grant NSF PHY 87-1440

    Gamow-Teller Resonances Observed in 90,92,94-Zr(p,n) at 120 and 160 MeV

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    Supported by the National Science Foundation and Indiana Universit

    Energy Dependence of the Ratio of Isovector Effective Interaction Strengths |J_στ/J_τ| from 0° (p,n) Cross Sections

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    This work was supported by the National Science Foundation Grants NSF PHY 78-22774 A03, NSF PHY 81-14339, and by Indiana Universit

    General Features of the Gamow-Teller Resonances

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    This work was supported by the National Science Foundation Grant NSF PHY 78-22774 A02 & A03 and by Indiana Universit

    Strong Spin-Flip Transitions in (p,n) Reactions

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    This work was supported by National Science Foundation Grant PHY 76-84033 and Indiana Universit
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