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QSSR estimate of the B$_{B}$ parameter at next-to-leading order
We compute the leading .alpha.sub(s) corrections to the two-point correlator of the $O_{\Delta B=2}$ operator which controls the B.sup(0) B.bar.sup(0) mixing. Using this result within the QCD spectral sum rules approach and some phenomenologically reasonable assumptions in the parametrization of the...
| Autores principales: | , |
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| Lenguaje: | eng |
| Publicado: |
1994
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1016/0370-2693(94)90739-0 http://cds.cern.ch/record/259852 |