Charmed and Bottom Baryons: a Variational Approach based on Heavy Quark Symmetry
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Charmed and Bottom Baryons: a Variational Approach based on Heavy Quark Symmetry

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Charmed and Bottom Baryons: a Variational Approach based on Heavy Quark Symmetry

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Albertus, Conrado; Amaro Soriano, José Enrique; Hernández Gajate, Eliecer; Nieves Pamplona, Juan Miguel
Aquest document és un/a article, creat/da en: 2004
The use of heavy quark symmetry to study bottom and charmed baryons leads to important simplifications of the non-relativistic three body problem, which turns out to be easily solved by a simple variational ansatz. Our simple scheme reproduces previous results (baryon masses, charge and mass radii,...) obtained by solving the Faddeev equations with simple non-relativistic quark-quark potentials, adjusted to the light and heavy-light meson spectra. Wave functions, parameterized in a simple manner, are also given and thus they can be easily used to compute further observables. Our method has been also used to find the predictions for strangeness-less baryons of the SU(2) chirally inspired quark-quark interactions. We find that the one pion exchange term of the chirally inspired interactions leads to relative changes of the Lambda(b) and Lambda(C) binding energies as large as 90%.

    Albertus, Conrado Amaro Soriano, José Enrique Hernández Gajate, Eliecer Nieves Pamplona, Juan Miguel 2004 Charmed and Bottom Baryons: a Variational Approach based on Heavy Quark Symmetry Nuclear Physics A 740 3-4 333 361
http://dx.doi.org/10.1016/j.nuclphysa.2004.04.114
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