Ghost spectral function from the spectral Dyson-Schwinger equation
We compute the ghost spectral function in Yang-Mills theory by solving the corresponding Dyson-Schwinger equation for a given input gluon spectral function. The results encompass both scaling and decoupling solutions for the gluon propagator input. The resulting ghost spectral function displays a pa...
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| Main Authors: | , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
21 October 2021
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| In: |
Physical review
Year: 2021, Volume: 104, Issue: 7, Pages: 1-16 |
| ISSN: | 2470-0029 |
| DOI: | 10.1103/PhysRevD.104.074017 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevD.104.074017 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.104.074017 
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| Author Notes: | Jan Horak, Joannis Papavassiliou, Jan M. Pawlowski, and Nicolas Wink |
| Summary: | We compute the ghost spectral function in Yang-Mills theory by solving the corresponding Dyson-Schwinger equation for a given input gluon spectral function. The results encompass both scaling and decoupling solutions for the gluon propagator input. The resulting ghost spectral function displays a particle peak at vanishing momentum and a negative scattering spectrum, whose infrared and ultraviolet tails are obtained analytically. The ghost dressing function is computed in the entire complex plane, and its salient features are identified and discussed. |
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| Item Description: | Gesehen am 21.04.2022 |
| Physical Description: | Online Resource |
| ISSN: | 2470-0029 |
| DOI: | 10.1103/PhysRevD.104.074017 |