Study of electromagnetic decay of $J/ψ$ and $ψ^\prime$ to vector and pseudoscalar
| dc.creator | Zhao, Qiang | |
| dc.creator | Li, Gang | |
| dc.creator | Chang, Chao-Hsi | |
| dc.date | 2006-10-18 | |
| dc.date | 2006-12-18 | |
| dc.date.accessioned | 2026-07-07T11:05:55Z | |
| dc.date.available | 2026-07-07T11:05:55Z | |
| dc.description | The electromagnetic decay contributions to $J/ψ(ψ^\prime)\to VP$, where $V$ and $P$ stand for vector and pseudoscalar meson, respectively, are investigated in a vector meson dominance (VMD) model. We show that $J/ψ(ψ^\prime)\to γ^*\to VP$ can be constrained well with the available experimental information. We find that this process has significant contributions in $ψ^\prime\to VP$ and may play a key role in understanding the deviations from the so-called "12% rule" for the branching ratio fractions between $ψ^\prime\to VP$ and $J/ψ\to VP$. We also address that the "12% rule" becomes very empirical in exclusive hadronic decay channels. | |
| dc.description | Revtex, 10 pages, 1 eps figure; further discussions about the helicity conservation rule and exp. constraints are included; version to appear in Phys. Lett. B | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0610223 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0610223 | |
| dc.identifier | Phys.Lett.B645:173-179,2007 | |
| dc.identifier | doi:10.1016/j.physletb.2006.12.037 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/189355 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Study of electromagnetic decay of $J/ψ$ and $ψ^\prime$ to vector and pseudoscalar | |
| dc.type | text |