Further insights into the "$ρπ$ puzzle"
| dc.creator | Zhao, Qiang | |
| dc.creator | Li, Gang | |
| dc.creator | Chang, Chao-Hsi | |
| dc.date | 2008-12-22 | |
| dc.date.accessioned | 2026-07-07T12:21:36Z | |
| dc.date.available | 2026-07-07T12:21:36Z | |
| dc.description | Based on a systematic investigation of $J/ψ(ψ^\prime)\to VP$, where $V$ and $P$ stand for light vector and pseudoscalar mesons, we identify the role played by the electromagnetic (EM) transitions and intermediate meson loop transitions, which are essential ingredients for understanding the $J/ψ$ and $ψ^\prime$ couplings to $VP$. We show that on the one hand, the EM transitions have relatively larger interferences in $ψ^\prime\to ρπ$ and $K^*\bar{K}+c.c.$ as explicitly shown by vector meson dominance (VMD). On the other hand, the strong decay of $ψ^\prime$ receives relatively larger destructive interferences from the intermediate meson loop transitions. By identifying these mechanisms in an overall study of $J/ψ(ψ^\prime)\to VP$, we provide a coherent understanding of the so-called "$ρπ$ puzzle". | |
| dc.description | 7 pages, 2 figures, proceeding of "The Conference on Interdisciplinary Fields of Particle Physics, Nuclear Physics and Cosmology", Aug. 2-4, 2008, Yunnan, China | |
| dc.identifier | https://arxiv.org/abs/0812.4092 | |
| dc.identifier | http://arxiv.org/abs/0812.4092 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/213389 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Further insights into the "$ρπ$ puzzle" | |
| dc.type | text |