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Quarkonium production: velocity-scaling rules and long-distance matrix elements
The hierarchy of long-distance matrix elements (MEs) for quarkonium production depends on their scaling with the velocity $v$ of the heavy quark in the bound state. Ranges for the velocities in various bound states and uncertainties of colour-singlet MEs are estimated in a quark-potential model. Dif...
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| Lenguaje: | eng |
| Publicado: |
1997
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| Acceso en línea: | https://dx.doi.org/10.1142/S0217751X97002103 http://cds.cern.ch/record/319647 |