Abstract:
We present a new parameterization of the trinucleon wave function. As a novel feature a separable parameterization for the complete wave function is given. In this way any calculation that considers two-body currents only is largely simplified. To demonstrate this we calculate the π3He scattering length in chiral-perturbation theory. We find reasonable agreement with experimental values inferred from data on level shifts in pionic 3He bound states. The relevance of the π-triton system for an alternative determination of the πN scattering lengths is discussed.
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Received: 12 August 2002 / Accepted: 25 November 2002 / Published online: 25 February 2003
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ID="a"e-mail: c.hanhart@fz.juelich.de
Communicated by V. Vento
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Baru, V., Haidenbauer, J., Hanhart, C. et al. New parameterization of the trinucleon wave function and its application to the π 3He scattering length. Eur Phys J A 16, 437–446 (2003). https://doi.org/10.1140/epja/i2002-10119-4
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DOI: https://doi.org/10.1140/epja/i2002-10119-4