Systematic Study on QCD Interactions of Heavy Mesons with $ρ$ Meson
| dc.creator | Li, Zuo-Hong | |
| dc.creator | Liu, Wei | |
| dc.creator | Liu, Hai-Yan | |
| dc.date | 2007-12-04 | |
| dc.date.accessioned | 2026-07-07T11:13:32Z | |
| dc.date.available | 2026-07-07T11:13:32Z | |
| dc.description | The strong interactions of the negative-parity heavy mesons with $ρ$ meson may be described consistently in the context of an effective lagrangian, which is invariant under isospin SU(2) transformation. Four coupling constants $g_{HHρ}$, $f_{H^*Hρ}$, $g_{H^*H^*ρ}$ and $f_{H^*H^*ρ}$ enter the effective lagrangian, where $H$ $(H^*)$ denotes a pseudoscalar bottom or charm meson (the corresponding vector meson). Using QCD light cone sum rule (LCSR) method and, as inputs, the hadronic parameters updated recently, we give an estimate of $g_{H^*H^*ρ}$ and $f_{H^*H^*ρ}$, about which little was known before, and present an improved result for $g_{HHρ}$ and $f_{H^*Hρ}$. Also, we examine the heavy quark asymptotic behavior of these nonperturbative quantities and assess the two low energy parameters $β$ and $λ$ of the corresponding effective chiral lagrangian. | |
| dc.description | 16 pages, 1 eps figure, version to appear in PLB | |
| dc.identifier | https://arxiv.org/abs/0712.0429 | |
| dc.identifier | http://arxiv.org/abs/0712.0429 | |
| dc.identifier | Phys.Lett.B659:598-606,2008 | |
| dc.identifier | doi:10.1016/j.physletb.2007.11.074 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/191754 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Systematic Study on QCD Interactions of Heavy Mesons with $ρ$ Meson | |
| dc.type | text |