Pion form factor and the Klein-Gordon equation
Journal Article
·
· Phys. Rev. C; (United States)
We compute ..pi../sup -/ ground state energy levels in the Coulomb field of nuclei as a function of the external charge Z, taking into account the pion electromagnetic form factor in the Klein-Gordon equation. We compare our results to those obtained by solving the Klein-Gordon equation without the form factor or by solving an approximate Klein-Gordon equation from which virtual pair terms have been removed. We find the approximate Klein-Gordon equation to be a priori a better approximation to the form factor Klein-Gordon equation for an external point Coulomb field. In contrast, the Klein-Gordon equation turns out to be an excellent approximation to the form factor Klein-Gordon equation for physical (finite size) nuclei, unlike the approximate Klein-Gordon equation.
- Research Organization:
- Institut de Physique, Universite de Liege, B-4000 Liege 1, Belgium
- OSTI ID:
- 6045020
- Journal Information:
- Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 30:1; ISSN PRVCA
- Country of Publication:
- United States
- Language:
- English
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