Properties of the running coupling constant of strong interaction at low energies
Quantum chromodynamics (QCD) running coupling constant and its dependence on the energy scale renormalization parameter are studied in the energy range of μ ≲ 25 GeV based on the five-loop calculations according to QCD renormalization group equation. Position of the Landau pole of the depend...
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| Format: | Article |
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Institute for Nuclear Research, National Academy of Sciences of Ukraine
2019-03-01
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| Series: | Ядерна фізика та енергетика |
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| Online Access: | http://jnpae.kinr.kiev.ua/20.1/html/20.1.0005.html |
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| author | V. A. Babenko N. M. Petrov |
| author_facet | V. A. Babenko N. M. Petrov |
| author_sort | V. A. Babenko |
| collection | DOAJ |
| description | Quantum chromodynamics (QCD) running coupling constant and its dependence on the energy scale renormalization parameter are studied in the energy range of μ ≲ 25 GeV based on the five-loop calculations according to QCD renormalization group equation. Position of the Landau pole of the dependence (QCD scale parameter ) is calculated in the five-loop order for the first time. Energy dependence of the running coupling constant in the given energy range is very well described by the proposed simple one-pole formula. |
| format | Article |
| id | doaj-art-cf535199f209495b83338587df580f9f |
| institution | DOAJ |
| issn | 1818-331X 2074-0565 |
| language | English |
| publishDate | 2019-03-01 |
| publisher | Institute for Nuclear Research, National Academy of Sciences of Ukraine |
| record_format | Article |
| series | Ядерна фізика та енергетика |
| spelling | doaj-art-cf535199f209495b83338587df580f9f2025-08-20T03:23:43ZengInstitute for Nuclear Research, National Academy of Sciences of UkraineЯдерна фізика та енергетика1818-331X2074-05652019-03-01201517https://doi.org/10.15407/jnpae2019.01.005Properties of the running coupling constant of strong interaction at low energiesV. A. Babenko0N. M. Petrov1Bogolyubov Institute for Theoretical Physics, National Academy of Sciences of Ukraine, Kyiv, UkraineBogolyubov Institute for Theoretical Physics, National Academy of Sciences of Ukraine, Kyiv, UkraineQuantum chromodynamics (QCD) running coupling constant and its dependence on the energy scale renormalization parameter are studied in the energy range of μ ≲ 25 GeV based on the five-loop calculations according to QCD renormalization group equation. Position of the Landau pole of the dependence (QCD scale parameter ) is calculated in the five-loop order for the first time. Energy dependence of the running coupling constant in the given energy range is very well described by the proposed simple one-pole formula.http://jnpae.kinr.kiev.ua/20.1/html/20.1.0005.htmlquantum chromodynamics (QCD)coupling constant of strong interactionQCD perturbation theoryrenormali-zation group equation of QCD. |
| spellingShingle | V. A. Babenko N. M. Petrov Properties of the running coupling constant of strong interaction at low energies Ядерна фізика та енергетика quantum chromodynamics (QCD) coupling constant of strong interaction QCD perturbation theory renormali-zation group equation of QCD. |
| title | Properties of the running coupling constant of strong interaction at low energies |
| title_full | Properties of the running coupling constant of strong interaction at low energies |
| title_fullStr | Properties of the running coupling constant of strong interaction at low energies |
| title_full_unstemmed | Properties of the running coupling constant of strong interaction at low energies |
| title_short | Properties of the running coupling constant of strong interaction at low energies |
| title_sort | properties of the running coupling constant of strong interaction at low energies |
| topic | quantum chromodynamics (QCD) coupling constant of strong interaction QCD perturbation theory renormali-zation group equation of QCD. |
| url | http://jnpae.kinr.kiev.ua/20.1/html/20.1.0005.html |
| work_keys_str_mv | AT vababenko propertiesoftherunningcouplingconstantofstronginteractionatlowenergies AT nmpetrov propertiesoftherunningcouplingconstantofstronginteractionatlowenergies |