IR fixed point and low-momentum gluon propagator
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arXiv
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| Format: | Preprint |
| Veröffentlicht: |
2025
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| _version_ | 1866918297355681792 |
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| author | Petrov, Vladimir A. |
| author_facet | Petrov, Vladimir A. |
| contents | Assuming the gluon propagator to be finite at $ g^{2}_{s} /4π\equiv α\rightarrow α_{\ast} $, where $ α_{\ast} = α(0) $, we derive its low-momentum asymptotics. In some cases the results modify the known ones. In our work, we also establish the field-theoretical nature of a universal phenomenological parameter introduced in works \cite{Alk} and determining the behaviour of Green's functions in the infrared region. The importance of studying the renormalization group parameters in the vicinity of the infrared stable point is emphasized. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_13221 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | IR fixed point and low-momentum gluon propagator Petrov, Vladimir A. High Energy Physics - Phenomenology Assuming the gluon propagator to be finite at $ g^{2}_{s} /4π\equiv α\rightarrow α_{\ast} $, where $ α_{\ast} = α(0) $, we derive its low-momentum asymptotics. In some cases the results modify the known ones. In our work, we also establish the field-theoretical nature of a universal phenomenological parameter introduced in works \cite{Alk} and determining the behaviour of Green's functions in the infrared region. The importance of studying the renormalization group parameters in the vicinity of the infrared stable point is emphasized. |
| title | IR fixed point and low-momentum gluon propagator |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2504.13221 |