Relativistic Effects in Two Photon Decay of 0-+ Quarkonium
Abstract
Relativistic effects in two photon decay of 0-+ quarkonium are investigated with a relativistic phenomenological approach. Comparing with the non-relativistic approximation, the relativistic phenomenological approach gives corrections coming from three sources: qbar q relative momentum distribution, qbar q relative energy distribution and description of quark spinors in the meson. These relativistic effects are studied in detail for cbar c and sbar s systems.
- Publication:
-
International Journal of Modern Physics A
- Pub Date:
- 2005
- DOI:
- 10.1142/S0217751X05023682
- Bibcode:
- 2005IJMPA..20.1939Z
- Keywords:
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- Quarkonium;
- two photon decay;
- relativistic effect