On the four-loop strong coupling beta-function in the SM
In the talk the leading four-loop contribution to the beta-function of the strong coupling in the SM is discussed. Some details of calculation techniques are provided. Special attention is paid to the ambiguity due to utilized γ5 treatment and a particular prescription with anticommuting γ5 is advoc...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2016-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | http://dx.doi.org/10.1051/epjconf/201612504008 |
| Summary: | In the talk the leading four-loop contribution to the beta-function of the strong coupling in the SM is discussed. Some details of calculation techniques are provided. Special attention is paid to the ambiguity due to utilized γ5 treatment and a particular prescription with anticommuting γ5 is advocated. As a by-product of our computation the four-loop beta-function in QCD with “gluino” is also obtained. |
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| ISSN: | 2100-014X |