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C. Milner(The University of Texas at Austin), M. L. Barlett(The University of Texas at Austin), G. W. Hoffmann(The University of Texas at Austin), S. Bart(The University of Texas at Austin), R.E. Chrien(The University of Texas at Austin), P. Pile(The University of Texas at Austin), P. D. Barnes(The University of Texas at Austin), G. Franklin(The University of Texas at Austin), Richard Grace(The University of Texas at Austin), H. S. Plendl(The University of Texas at Austin), J. F. Amann(The University of Texas at Austin), T. S. Bhatia(The University of Texas at Austin), T. Kozłowski(The University of Texas at Austin), J. C. Peng(The University of Texas at Austin), Richard R. Silbar(The University of Texas at Austin), H. A. Thiessen(The University of Texas at Austin), C. Glashausser(The University of Texas at Austin), J. McGill(The University of Texas at Austin), R. Hackenburg(The University of Texas at Austin), E. V. Hungerford(The University of Texas at Austin), R. L. Stearns(The University of Texas at Austin)
Physical Review Letters
March 25, 1985
Cited by 128

Abstract

The observation of $\ensuremath{\Lambda}$-hypernuclear levels in $_{\ensuremath{\Lambda}}^{12}\mathrm{C}$ by associated production through the (${\ensuremath{\pi}}^{+}, {K}^{+}$) reaction is reported. The $_{\ensuremath{\Lambda}}^{12}\mathrm{C}$ excitation-energy spectra were recorded at laboratory scattering angles of 5.6\ifmmode^\circ\else\textdegree\fi{}, 10.3\ifmmode^\circ\else\textdegree\fi{}, and 15.2\ifmmode^\circ\else\textdegree\fi{}. They show two major peaks---one attributed to the ground state, and one about 11 MeV higher. These results are compared to the strangeness-exchanging (${K}^{\ensuremath{-}}, {\ensuremath{\pi}}^{\ensuremath{-}}$) reaction. The measured cross sections are compared to relativistic distorted-wave Born-approximation calculations.


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