Baryon Chiral Perturbation Theory in Partially Quenched Large-Nc QCD
| dc.creator | Chow, Chi-Keung | |
| dc.creator | Rey, Soo-Jong | |
| dc.date | 1997-12-29 | |
| dc.date | 1998-05-02 | |
| dc.date.accessioned | 2026-07-07T04:03:13Z | |
| dc.date.available | 2026-07-07T04:03:13Z | |
| dc.description | Baryons of lower spin in partially quenched large-$N_c$ QCD are studied with particular emphasis to interpolation between standard unquenched and fully quenched limits. In large $N_c$ limit of partially quenched QCD, we calculate $Δm$, the chiral one-loop correction to baryon masses. We find that leading order contribution to $Δm$ is independent of number of ghost quarks introduced. For finite $N_c$, chiral correction $Δm$ does satisfy the Bernard--Golterman's third theorem and has no infared quenching singularity except for fully quenched limit. At large $N_c$ limit, however, we show that the third theorem is bypassed and nontrivial quenched chiral corrections do arise. In unquenched limit, we also show that standard chiral perturbation theory results are reproduced in which $η'$ loop contributions are explicitly taken into account. | |
| dc.description | Latex, 19 pages, 2 figures, v2: two typos corrected, v3: two subsections and minor corrections are added | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9712528 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9712528 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/47558 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | High Energy Physics - Lattice | |
| dc.title | Baryon Chiral Perturbation Theory in Partially Quenched Large-Nc QCD | |
| dc.type | text |