| Role of hyperfine mixing in b→c semileptonic decays of doubly-heavy baryons |
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| 引用本文： | E.Hernández.Role of hyperfine mixing in b→c semileptonic decays of doubly-heavy baryons[J].中国物理C（英文版）,2010,34(9). |
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| 作者姓名： | E.Hernández |
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| 作者单位： | 1. Departamento de Física Fundamental e IUFFyM,Universidad de Salamanca,E-37008 Salamanca,Spain;Instituto de Física Corpuscular(IFIC),Centro Mixto CSIC-Universidad de Valencia,Institutos de Investigación de Paterna,Aptd.22085,E-46071 Valencia,Spain
2. Instituto de Física Corpuscular(IFIC),Centro Mixto CSIC-Universidad de Valencia,Institutos de Investigación de Paterna,Aptd.22085,E-46071 Valencia,Spain |
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| 基金项目： | DGI and FEDER funds，Junta de Castilla y León，Generalitat Valenciana，the EU HadronPhysics2 project |
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| 摘 要： | We analyze the effects of hyperfine mixing in b → c semileptonic decays of doubly heavy baryons.We qualitatively confirm the results by W.Roberts and M.Pervin in Int.J.Mod.Phys.A,2009,24: 2401– 2413,finding that mixing has a great impact on those transitions.However,predictions without mixing differ by a factor of 2 and this discrepancy translates to the mixed case where large differences in decay widths are observed between the two calculations.
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