17 research outputs found

    Stretch de-spin mechanism Patent

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    Stretch Yo-Yo mechanism for reducing initial spin rate of space vehicl

    Effective range function below threshold

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    We demonstrate that the kernel of the Lippmann-Schwinger equation, associated with interactions consisting of a sum of the Coulomb plus a short range nuclear potential, below threshold becomes degenerate. Taking advantage of this fact, we present a simple method of calculating the effective range function for negative energies. This may be useful in practice since the effective range expansion extrapolated to threshold allows to extract low-energy scattering parameters: the Coulomb-modified scattering length and the effective range.Comment: 14 pages, 1 figur

    The Soliton and Its History

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