Quark scalar, axial and tensor charges in the Schwinger-Dyson formalism
Journal Article
·
· AIP Conference Proceedings
- 2-1 Hirosawa, Wako, 351-0198 Saitama (Japan)
The quark scalar, axial and tensor charges of nucleon are calculated in the Schwinger-Dyson formalism. We first calculate these charges in the rainbow-ladder truncation using the IR cut quark-gluon vertex, and show that the result is in agreement with the known data. We then perform the same calculation with the phenomenological IR singular quark-gluon vertex. In this case, the Schwinger-Dyson equation does not converge. We show that this result suggests the requirement of additional corrections to the rainbow-ladder truncation, due to the interaction between quark and gluons in the deep IR region.
- OSTI ID:
- 22499046
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1701; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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