Density dependent K- nuclear optical potentials from kaonic atoms

1994
21 pages
Published in:
  • Nucl.Phys.A 579 (1994) 518-538

Citations per year

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Abstract: (Elsevier)
The density depedence of the K − optical potential V opt ( r ) at zero kinetic energy is studied by fitting it to a comprehensive set of atomic data across the periodic table. Two families of solutions offering improved fits over that for a t eff ϱ ( r ) parameterization are identified, one containing solutions for V opt with r.m.s. radii larger than those of the matter density ϱ, as expected from finite-range folding corrections. The other gives rise to Re V opt of a size smaller than that of ϱ. The latter family offers substantially improved fits to the data, with particularly strong attraction inside the nucleus (200 ± 20 MeV). For a subfamily of solutions, V opt becomes repulsive at large distances, and solutions satisfying the low-density limit V opt → t K N ϱ can be found. Comments are made on the relevance of Λ(1405) nuclear dynamics to these findings.
  • K- nucleus: potential
  • potential: optical
  • dependence: density
  • atom: mesic atom
  • K- nucleon: partial wave
  • Lambda(1405)
  • numerical calculations