Can the Lambda pi scattering phase shifts be large?

Details Can the Lambda pi scattering phase shifts be large? Can the Lambda pi scattering phase shifts be large?

2000-11-17

arxiv.org/abs/hep-ph/0011214v1

Phys.Rev.D64:014005,2001

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, latex, 3 figures, uses axodraw.sty

Scientific paper

10.1103/PhysRevD.64.014005

Motivated by the presence of nearby thresholds in other baryon-meson channels
with I=1 and S=-1, we investigate whether the Lambda pi scattering phase shifts
at a center-of-mass energy equal to the Xi mass could be larger than suggested
by lowest-order chiral perturbation theory. Within a coupled-channel K-matrix
approach, we find that the S-wave phase shift could be as large as -7 degrees.

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