Ghost spectral function from the spectral Dyson-Schwinger equation

• Verfasst von: Horak, Jan [VerfasserIn]
• Verfasst von: Papavassiliou, Joannis [VerfasserIn]
• Verfasst von: Pawlowski, Jan M. [VerfasserIn]
• Verfasst von: Wink, Nicolas [VerfasserIn]
• Titel: Ghost spectral function from the spectral Dyson-Schwinger equation
• Verf.angabe: Jan Horak, Joannis Papavassiliou, Jan M. Pawlowski, and Nicolas Wink
• E-Jahr: 2021
• Jahr: 21 October 2021
• Umfang: 16 S.
• Fussnoten: Gesehen am 21.04.2022
• Titel Quelle: Enthalten in: Physical review
• Ort Quelle: Woodbury, NY : Inst., 2016
• Jahr Quelle: 2021
• Band/Heft Quelle: 104(2021), 7 vom: Okt., Artikel-ID 074017, Seite 1-16
• ISSN Quelle: 2470-0029
• DOI: doi:10.1103/PhysRevD.104.074017
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1799957802

Abstract

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.