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Title: Accurate evaluation of pionium wave functions

Journal Article · · Physical Review. C, Nuclear Physics
;  [1]
  1. School of Physics, Suranaree University of Technology, Nakhon Ratchasima 30000 (Thailand)

A suitable numerical approach based on Sturmian functions is employed to solve the pionium problem for both local and nonlocal potentials. The approach accounts for both the short-ranged strong interaction and the long-ranged Coulomb force and provides accurately the wave function and binding energy of pionium. It is found that the ground-state pionium wave function in realistic pion-pion strong interactions might be considerably different from the hydrogen-like one at a small distance.

OSTI ID:
20695503
Journal Information:
Physical Review. C, Nuclear Physics, Vol. 70, Issue 3; Other Information: DOI: 10.1103/PhysRevC.70.034006; (c) 2004 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
Country of Publication:
United States
Language:
English