{ "id": "1810.06947", "version": "v1", "published": "2018-10-16T12:10:41.000Z", "updated": "2018-10-16T12:10:41.000Z", "title": "Identification of the newly observed $Σ_b(6097)^\\pm$ baryons from their strong decays", "authors": [ "Pei Yang", "Jing-Jing Guo", "Ailin Zhang" ], "comment": "5 pages, 6 tables, RevTex", "categories": [ "hep-ph", "hep-ex" ], "abstract": "Two bottom $\\Sigma_b(6097)^\\pm$ baryons were observed in the final states $\\Lambda_b^0\\pi^-$ and $\\Lambda_b^0\\pi^+$ in $pp$ collision by LHCb collaboration, whose masses and widths were measured. In a $^{3}P_{0}$ model, the strong decay widths of two ground $S$-wave and seven excited $P$-wave $\\Sigma_b$ baryons have been systematically computed. Numerical results indicate that the newly observed $\\Sigma_b(6097)^\\pm$ are very possibly $\\Sigma_{b2}^1({3\\over 2}^-)$ with $J^P={3\\over 2}^-$ or $\\Sigma_{b2}^1({5\\over 2}^-)$ with $J^P={5\\over 2}^-$. The predicted decay widths of $\\Sigma_b(6097)^\\pm$ are consistent with experimental measurement from LHCb. In particular, it may be possible to distinguish these two assignments through ratios $\\Gamma({\\Sigma_b(6097)^\\pm\\to \\Sigma_b^\\pm\\pi^0})/\\Gamma({\\Sigma_b(6097)^\\pm\\to \\Sigma_b^{*\\pm}\\pi^0})$, which can be measured by experiments in the future. In the meantime, our results support the assignments that $\\Sigma_b^\\pm$ and $\\Sigma_b^{*\\pm}$ are the ground $S$-wave $\\Sigma_b$ baryons with $J^P={1\\over 2}^+$ and $J^P={3\\over 2}^+$, respectively.", "revisions": [ { "version": "v1", "updated": "2018-10-16T12:10:41.000Z" } ], "analyses": { "keywords": [ "identification", "strong decay widths", "predicted decay widths", "results support", "final states" ], "note": { "typesetting": "RevTeX", "pages": 5, "language": "en", "license": "arXiv", "status": "editable" } } }