Low-energy<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>α</mml:mi><mml:mrow><mml:msup><mml:mrow><mml:mo>+</mml:mo></mml:mrow><mml:mrow><mml:mn>6</mml:mn></mml:mrow></mml:msup></mml:mrow><mml:mi mathvariant="normal">He</mml:mi></mml:math>elastic scattering with the resonating-group method

K. Fujimura, D. Baye, P. Descouvemont, Y. Suzuki, K. Varga

doi:10.1103/physrevc.59.817

Low-energy<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>α</mml:mi><mml:mrow><mml:msup><mml:mrow><mml:mo>+</mml:mo></mml:mrow><mml:mrow><mml:mn>6</mml:mn></mml:mrow></mml:msup></mml:mrow><mml:mi mathvariant="normal">He</mml:mi></mml:math>elastic scattering with the resonating-group method

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書誌事項

公開日: 1999-02-01

権利情報

http://link.aps.org/licenses/aps-default-license

DOI

10.1103/physrevc.59.817

公開者: American Physical Society (APS)

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説明

The $\ensuremath{\alpha}{+}^{6}\mathrm{He}$ elastic scattering is investigated within a microscopic multicluster model, involving a realistic description of the ${}^{6}\mathrm{He}$ halo nucleus. Phase shifts and elastic-scattering cross sections are calculated up to ${E}_{\mathrm{c}.\mathrm{m}.}=15 \mathrm{MeV}$ with two variants of the resonating-group method. The model gives rise to ${1}^{\ensuremath{-}}$ and ${3}^{\ensuremath{-}}$ molecular states near ${E}_{\mathrm{c}.\mathrm{m}.}=0.5 \mathrm{MeV}$ and ${E}_{\mathrm{c}.\mathrm{m}.}=3.7 \mathrm{MeV},$ respectively. We suggest that the broad ${3}^{\ensuremath{-}}$ resonance should be observable by comparing elastic cross sections at different energies. We also evaluate the order of magnitude of the ${}^{6}\mathrm{He}$ breakup cross section.