Shape-independent expansion for the 3S1 - 3D1 mixing parameter
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Elsevier B.V.
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Elsevier
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Abstract
A low-energy shape-independent expansion is suggested for the function tan(2εBB)/(2k2), where εBB is the Blatt-Biedenharn mixing parameter for the 3S1 - 3D1 channel. This expansion allows an evaluation of the mixing parameter εBB from a knowledge of the deuteron asymptotic D to S ratio, pion mass and other low-energy observables, such as the scattering lengths, deuteron binding etc., of the nucleon-nucleon system. We demonstrate that the correct long range behavior of the tensor potential is essential for a realistic reproduction of εBB.
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English
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Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, v. 318, n. 1, p. 14-18, 1993.
