{"paper":{"title":"The Spin-orbit force, recoil corrections and possible $B \\bar{B}^{*}$ and $D \\bar{D}^{*}$ molecular states","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex","hep-lat","nucl-th"],"primary_cat":"hep-ph","authors_text":"Li Ma, Lu Zhao, Shi-Lin Zhu","submitted_at":"2014-03-17T09:42:52Z","abstract_excerpt":"In the framework of the one boson exchange model, we have calculated the effective potentials between two heavy mesons $B \\bar{B}^{*}$ and $D \\bar{D}^{*}$ from the t- and u-channel $\\pi$, $\\eta$, $\\rho$, $\\omega$ and $\\sigma$ meson exchange with four kinds of quantum number: $I=0$, $J^{PC}=1^{++}$; $I=0$, $J^{PC}=1^{+-}$; $I=1$, $J^{PC}=1^{++}$; $I=1$, $J^{PC}=1^{+-}$. We keep the recoil corrections to the $B \\bar{B}^{*}$ and $D \\bar{D}^{*}$ system up to $O(\\frac{1}{M^2})$. The spin orbit force appears at $O(\\frac{1}{M})$, which turns out to be important for the very loosely bound molecular st"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.4043","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}