New QCD Sum Rules for Nucleon Axial Vector Coupling Constants
| dc.creator | Lee, Frank X. | |
| dc.creator | Leinweber, Derek B. | |
| dc.creator | Jin, Xuemin | |
| dc.date | 1996-06-13 | |
| dc.date.accessioned | 2026-07-07T05:41:41Z | |
| dc.date.available | 2026-07-07T05:41:41Z | |
| dc.description | New QCD sum rules for the nucleon axial-vector current coupling constants are derived. One set is derived from a generalized correlator of spin-1/2 interpolating fields, and the other with a mixed correlator of spin-1/2 and spin-3/2 fields. Using a recently-developed Monte-Carlo based uncertainty analysis and techniques for determining the optimal interpolating fields, the predicative ability of QCD sum rules for axial-vector current coupling constants are determined. We find the previous studies of this matrix element are based on an invalid sum rule. A combined analysis of this sum rule together with the nucleon mass sum rules yields $g_A=1.48\pm^{1.06}_{0.65}$. The relative error of approximately 60% is large compared to a 10% error for the nucleon mass obtained from the same input parameters. | |
| dc.description | 2 page conference proceeding for PANIC '96. This and related papers may also be obtained from http://www.phys.washington.edu/~derek/Publications.html | |
| dc.identifier | https://arxiv.org/abs/nucl-th/9606026 | |
| dc.identifier | http://arxiv.org/abs/nucl-th/9606026 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/82661 | |
| dc.subject | Nuclear Theory | |
| dc.title | New QCD Sum Rules for Nucleon Axial Vector Coupling Constants | |
| dc.type | text |