Compositeness of gauge boson and asymptotic freedom in non-abelian gauge theory
| dc.creator | Hattori, Takashi | |
| dc.date | 2000-10-18 | |
| dc.date.accessioned | 2026-07-07T04:10:44Z | |
| dc.date.available | 2026-07-07T04:10:44Z | |
| dc.description | In order to investigate the composite gauge field, we consider the compositeness condition (i.e. renormalization constant $Z_3=0$) in the general non-abelian gauge field theory. We calculate $Z_3$ at the next-to-leading order in $1/N_f$ expansion ($N_f$ is the number of fermion flavors), and obtain the expression to the gauge coupling constant through the compositeness condition. Then the gauge coupling constant is proportional to $1/\sqrt{4N_f T(R)-11C_2(G)}$ where T(R) is the index for a representation R of gauge group G, and $C_2(G)$ is the quadratic Casimir. It is found that the gauge boson compositeness take place only when $N_f T(R)/C_2(G) > 11/4$, in which the asymptotic freedom in the non-abelian gauge field theory fails. | |
| dc.description | 22 pages, 2 figures | |
| dc.identifier | https://arxiv.org/abs/hep-th/0010147 | |
| dc.identifier | http://arxiv.org/abs/hep-th/0010147 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/50318 | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Compositeness of gauge boson and asymptotic freedom in non-abelian gauge theory | |
| dc.type | text |