Using pi_2(1670) -> b_1(1235) pi to Constrain Hadronic Models
| dc.creator | Page, Philip R. | |
| dc.creator | Capstick, Simon | |
| dc.date | 2003-04-23 | |
| dc.date | 2003-07-01 | |
| dc.date.accessioned | 2026-07-07T10:28:47Z | |
| dc.date.available | 2026-07-07T10:28:47Z | |
| dc.description | We show that current analyses of experimental data indicate that the strong decay mode pi_2 -> b_1 pi is anomalously small. Non-relativistic quark models with spin-1 quark pair creation, such as ^3P_0, ^3S_1 and ^3D_1 models, as well as instanton and lowest order one-boson (in this case pi) emission models, can accommodate the analyses of experimental data, because of a quark-spin selection rule. Models and effects that violate this selection rule, such as higher order one-boson emission models, as well as mixing with other Fock states, may be constrained by the small pi_2 -> b_1 pi decay. This can provide a viability check on newly proposed decay mechanisms. We show that for mesons made up of a heavy quark and anti-quark, the selection rule is exact to all orders of Quantum Chromodynamics (QCD) perturbation theory. | |
| dc.description | 11 pages, LaTeX, 3 encapsulated Postscript figures, small changes | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0304231 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0304231 | |
| dc.identifier | Phys.Lett.B566:108-114,2003 | |
| dc.identifier | doi:10.1016/S0370-2693(03)00804-9 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/177572 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Using pi_2(1670) -> b_1(1235) pi to Constrain Hadronic Models | |
| dc.type | text |