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New results on heavy quarks near threshold
We review in brief the threshold expansion, a method to perform the expansion of Feynman integrals near the heavy quark-antiquark threshold, and its relation to the construction of two effective theories, non-relativistic QCD (NRQCD) and potential-NRQCD. We then summarize recent next-to-next-to-lead...
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| Lenguaje: | eng |
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1998
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| Acceso en línea: | http://cds.cern.ch/record/357901 |
| _version_ | 1780892562236637184 |
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| author | Beneke, M. |
| author_facet | Beneke, M. |
| author_sort | Beneke, M. |
| collection | CERN |
| description | We review in brief the threshold expansion, a method to perform the expansion of Feynman integrals near the heavy quark-antiquark threshold, and its relation to the construction of two effective theories, non-relativistic QCD (NRQCD) and potential-NRQCD. We then summarize recent next-to-next-to-leading order results on the decay $J/\Psi\to l^+ l^-$, the bottom quark mass from $\Upsilon$ sum rules and the top-anti-top production cross section near threshold in $e^+ e^-$ collisions. |
| id | cern-357901 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 1998 |
| record_format | invenio |
| spelling | cern-3579012023-03-14T20:36:28Zhttp://cds.cern.ch/record/357901engBeneke, M.New results on heavy quarks near thresholdParticle Physics - PhenomenologyWe review in brief the threshold expansion, a method to perform the expansion of Feynman integrals near the heavy quark-antiquark threshold, and its relation to the construction of two effective theories, non-relativistic QCD (NRQCD) and potential-NRQCD. We then summarize recent next-to-next-to-leading order results on the decay $J/\Psi\to l^+ l^-$, the bottom quark mass from $\Upsilon$ sum rules and the top-anti-top production cross section near threshold in $e^+ e^-$ collisions.We review in brief the threshold expansion, a method to perform the expansion of Feynman integrals near the heavy quark-antiquark threshold, and its relation to the construction of two effective theories, non-relativistic QCD (NRQCD) and potential-NRQCD. We then summarize recent next-to-next-to-leading order results on the decay $J/\Psi\to l^+ l^-$, the bottom quark mass from $\Upsilon$ sum rules and the top-anti-top production cross section near threshold in $e^+ e^-$ collisions.hep-ph/9806429CERN-TH-98-202CERN-TH-98-202oai:cds.cern.ch:3579011998-06-23 |
| spellingShingle | Particle Physics - Phenomenology Beneke, M. New results on heavy quarks near threshold |
| title | New results on heavy quarks near threshold |
| title_full | New results on heavy quarks near threshold |
| title_fullStr | New results on heavy quarks near threshold |
| title_full_unstemmed | New results on heavy quarks near threshold |
| title_short | New results on heavy quarks near threshold |
| title_sort | new results on heavy quarks near threshold |
| topic | Particle Physics - Phenomenology |
| url | http://cds.cern.ch/record/357901 |
| work_keys_str_mv | AT benekem newresultsonheavyquarksnearthreshold |