Dynamics of Hadronic Molecule in One-Boson Exchange Approach and Possible Heavy Flavor Molecules

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dc.creatorDing, Gui-Jun
dc.creatorLiu, Jia-Feng
dc.creatorYan, Mu-Lin
dc.date2009-01-05
dc.date2009-04-11
dc.date.accessioned2026-07-07T13:02:17Z
dc.date.available2026-07-07T13:02:17Z
dc.descriptionWe extend the one pion exchange model at quark level to include the short distance contributions coming from $η$, $σ$, $ρ$ and $ω$ exchange. This formalism is applied to discuss the possible molecular states of $D\bar{D}^{*}/\bar{D}D^{*}$, $B\bar{B}^{*}/\bar{B}B^{*}$, $DD^{*}$, $BB^{*}$, the pseudoscalar-vector systems with $C=B=1$ and $C=-B=1$ respectively. The "$δ$ function" term contribution and the S-D mixing effects have been taken into account. We find the conclusions reached after including the heavier mesons exchange are qualitatively the same as those in the one pion exchange model. The previous suggestion that $1^{++}$ $B\bar{B}^{*}/\bar{B}B^{*}$ molecule should exist, is confirmed in the one boson exchange model, whereas $DD^{*}$ bound state should not exist. The $D\bar{D}^{*}/\bar{D}D^{*}$ system can accomodate a $1^{++}$ molecule close to the threshold, the mixing between the molecule and the conventional charmonium has to be considered to identify this state with X(3872). For the $BB^{*}$ system, the pseudoscalar-vector systems with $C=B=1$ and $C=-B=1$, near threshold molecular states may exist. These bound states should be rather narrow, isospin is violated and the I=0 component is dominant. Experimental search channels for these states are suggested.
dc.description21 pages, 11 figures, 8 tables
dc.identifierhttps://arxiv.org/abs/0901.0426
dc.identifierhttp://arxiv.org/abs/0901.0426
dc.identifierPhys.Rev.D79:054005,2009
dc.identifierdoi:10.1103/PhysRevD.79.054005
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/226402
dc.subjectHigh Energy Physics - Phenomenology
dc.titleDynamics of Hadronic Molecule in One-Boson Exchange Approach and Possible Heavy Flavor Molecules
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