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Colour octet contribution to exclusive P-wave charmonium decay into nucleon-antinucleon

✍ Scribed by S.M.H. Wong


Book ID
108463088
Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
416 KB
Volume
74
Category
Article
ISSN
0920-5632

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Colour octet contribution in exclusive P
✍ S.M.H. Wong πŸ“‚ Article πŸ“… 2000 πŸ› Elsevier Science 🌐 English βš– 204 KB

In inclusive P-wave charmonium decay, to cancel infrared divergence in the colour singlet contribution requires the inclusion of the colour octet which becomes degenerate with the former in the infrared limit. In the corresponding exclusive decay, such an infrared divergence does not exist. On this