A form of QCD sum rules, tested and found to be very reliable in the isovector vector channel, is used to determine the scalar current decay constants of the a0 resonances. Comparison to the corresponding decay constant of the K~( 1430) is used to shed light on the nature of the a0(980). It is shown
โฆ LIBER โฆ
Scalar meson decay constants and the nature of the a0(980)
โ Scribed by K. Maltman
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- English
- Weight
- 225 KB
- Volume
- 680
- Category
- Article
- ISSN
- 0375-9474
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