The New Sigma_b multiplet, heavy baryon mass predictions, meson-baryon universality and magnetic moments of Lambda_c and Lambda_b

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dc.creatorKarliner, Marek
dc.creatorLipkin, Harry J.
dc.date2006-11-24
dc.date2007-09-03
dc.date.accessioned2026-07-07T11:22:11Z
dc.date.available2026-07-07T11:22:11Z
dc.descriptionThe recent measurement by CDF M(Sigma_b)-M(Lambda_b)=192 MeV is in striking agreement with our theoretical prediction M(Sigma_b)-M(Lambda_b) = 194 MeV. In addition, the measured splitting M(Sigma_b*)-M(Sigma_b) = 21 MeV agrees well with the predicted splitting of 22 MeV. We point out the connection between these predictions and an effective supersymmetry between mesons and baryons related by replacing a light antiquark by a light diquark. We discuss the theoretical framework behind these predictions and use it to provide additional predictions for the masses of spin-1/2 and spin-3/2 baryons containing heavy quarks, as well as magnetic moments of Lambda_b and Lambda_c.
dc.descriptionUpdated section on doubly strange diquarks
dc.identifierhttps://arxiv.org/abs/hep-ph/0611306
dc.identifierhttp://arxiv.org/abs/hep-ph/0611306
dc.identifierPhys.Lett.B660:539-544,2008
dc.identifierdoi:10.1016/j.physletb.2008.01.023
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/194485
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Experiment
dc.titleThe New Sigma_b multiplet, heavy baryon mass predictions, meson-baryon universality and magnetic moments of Lambda_c and Lambda_b
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