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B$_{c}$ mass up to order $\alpha_{s}^{4}$
We evaluate in perturbative QCD, up to order alphas4, the mass of the Bc. We use the so-called 1S mass in order to improve the convergence of the perturbative series. Our result is E(Bc) pert = 6326-9+29 MeV. Nonperturbative effects are discussed. A comparison with potential models seems to be consi...
| Autores principales: | , |
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| Lenguaje: | eng |
| Publicado: |
2000
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| Materias: | |
| Acceso en línea: | http://cds.cern.ch/record/1035368 |
| _version_ | 1780912473754304512 |
|---|---|
| author | Brambilla, Nora Vairo, Antonio |
| author_facet | Brambilla, Nora Vairo, Antonio |
| author_sort | Brambilla, Nora |
| collection | CERN |
| description | We evaluate in perturbative QCD, up to order alphas4, the mass of the Bc. We use the so-called 1S mass in order to improve the convergence of the perturbative series. Our result is E(Bc) pert = 6326-9+29 MeV. Nonperturbative effects are discussed. A comparison with potential models seems to be consistent with nonperturbative contributions of the order –(40–100) MeV. |
| id | cern-1035368 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2000 |
| record_format | invenio |
| spelling | cern-10353682019-09-30T06:29:59Zhttp://cds.cern.ch/record/1035368engBrambilla, NoraVairo, AntonioB$_{c}$ mass up to order $\alpha_{s}^{4}$XXWe evaluate in perturbative QCD, up to order alphas4, the mass of the Bc. We use the so-called 1S mass in order to improve the convergence of the perturbative series. Our result is E(Bc) pert = 6326-9+29 MeV. Nonperturbative effects are discussed. A comparison with potential models seems to be consistent with nonperturbative contributions of the order –(40–100) MeV.oai:cds.cern.ch:10353682000 |
| spellingShingle | XX Brambilla, Nora Vairo, Antonio B$_{c}$ mass up to order $\alpha_{s}^{4}$ |
| title | B$_{c}$ mass up to order $\alpha_{s}^{4}$ |
| title_full | B$_{c}$ mass up to order $\alpha_{s}^{4}$ |
| title_fullStr | B$_{c}$ mass up to order $\alpha_{s}^{4}$ |
| title_full_unstemmed | B$_{c}$ mass up to order $\alpha_{s}^{4}$ |
| title_short | B$_{c}$ mass up to order $\alpha_{s}^{4}$ |
| title_sort | b$_{c}$ mass up to order $\alpha_{s}^{4}$ |
| topic | XX |
| url | http://cds.cern.ch/record/1035368 |
| work_keys_str_mv | AT brambillanora bcmassuptoorderalphas4 AT vairoantonio bcmassuptoorderalphas4 |