Variational calculations of the Λ-separation energy of the OΛ17 hypernucleus

Phys. Rev. C 51, 2347 – Published 1 May 1995
A. A. Usmani, Steven C. Pieper, and Q. N. Usmani

Abstract

Variational Monte Carlo calculations have been made for the OΛ17 hypernucleus using realistic two- and three-baryon interactions. A two-pion exchange potential with spin- and space-exchange components is used for the ΛN potential. Three-body two-pion exchange and strongly repulsive dispersive ΛNN interactions are also included. The trial wave function is constructed from pair- and triplet-correlation operators acting on a single-particle determinant. These operators consist of central, spin, isospin, tensor, and three-baryon potential components. A cluster Monte Carlo method is developed for noncentral correlations and is used with up to four-baryon clusters in our calculations. The three-baryon ΛNN force is discussed.

DOI: http://dx.doi.org/10.1103/PhysRevC.51.2347

  • Received 6 December 1994
  • Published in the issue dated May 1995

© 1995 The American Physical Society

Authors & Affiliations

A. A. Usmani

  • Interdisciplinary Laboratory, SISSA, I-34014, Trieste, Italy

Steven C. Pieper

  • Physics Division, Argonne National Laboratory, Argonne, Illinois 60439

Q. N. Usmani

  • Department of Physics, Jamia Millia Islamia, New Delhi 110025, India

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