Constituent Quark Couplings and QCD in the Large $N_c$ Limit
| dc.creator | Peris, Santiago | |
| dc.creator | de Rafael, Eduardo | |
| dc.date | 1993-04-16 | |
| dc.date.accessioned | 2026-07-07T11:35:05Z | |
| dc.date.available | 2026-07-07T11:35:05Z | |
| dc.description | It is shown that in the constituent quark model of Georgi-Manohar, the dispersion relation that leads to the Adler-Weisberger sum rule for the axial vector coupling $g_A$ requires a subtraction constant. This fact explains the discrepancy between the results of different recent estimates of the $1/N_c$ corrections to Weinberg's large $N_c$ result $g_A=1$, where $N_c$ is the number of QCD colors. We also discuss a possible scenario which shows that $g_A=1$ might not be a necessary consequence of QCD in the large $N_c$ limit. | |
| dc.description | 9 pages, 4 figs. not included available upon request to PERIS @ IFAE.ES, plain TeX, preprint No. UAB-FT-310 and CPT-93/P.2883 | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9304262 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9304262 | |
| dc.identifier | Phys.Lett.B309:389-393,1993 | |
| dc.identifier | doi:10.1016/0370-2693(93)90950-M | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/198473 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Constituent Quark Couplings and QCD in the Large $N_c$ Limit | |
| dc.type | text |