Black Sphere Model for the Line Widths of p State Protonium
19784 pages
Published in:
- Phys.Rev.C 17 (1978) 215-218
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Abstract: (APS)
The annihilation widths of nP p¯p bound states (protonium) are calculated in the Wentzel-Kramers-Brillouin approximation for a totally absorbing sphere, including the coupling to ñn states. It is shown that the annihilation occurs preferentially in one of the two possible isospin eigenstates, and that on the average it is 100 times stronger than the radiative 2P−1S transition. A simple formula for the n dependence of the annihilation widths is also given.
[NUCLEAR REACTIONS. Protonium p¯p, calculated p-state Γ.]- ATOM: HADRONIC ATOM
- ANTI-P P: BOUND STATE
- ANTI-P P: ATOM
- ANTI-P P: ANNIHILATION
- ANNIHILATION: ANTI-P P
- ISOSPIN
- ENERGY LEVELS: WIDTH
- WIDTH: ENERGY LEVELS
- MODEL: BLACK SPHERE
- APPROXIMATION: WKB approximation
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