The static PQCD potential with modified boundary conditions
By Paul Hoyer, J. Rathsman. 2000
216 citations recorded by the source corpus.
We calculate the potential between two static quarks in QCD using modified boundary conditions for the perturbative expansion. Through a change of the Feynman ie-prescription we effectively add a ``sea'' of gluons to the asymptotic states with energies below a given scale Λ. We find that the standard result for the static potential gets corrections of order Λ2/Q2 both at small and large momentum transfers Q2. After resummation of the infrared sensitive corrections we find that the running coupling αs(Q2) freezes in the infrared and that the exchanged gluon gets an effective tachyonic mass. We verify that identical results are obtained in the Coulomb and Feynman gauges.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/6c541e16e0b5e9d2c2d4cb3e4f8620aa022449ec
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In Nuclear and High Energy Physics
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- Oleg Ruchayskiy
- Julien Lesgourgues
- L. Roszkowski
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- E. M. Sessolo
- F. Steffen
Citations in the corpus
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