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Heavy-flavour pentaquarks in a chiral constituent quark model

Abstract : Within the chiral constituent quark model of Glozman and Riska, we discuss the stability of heavy pentaquarks, i.e. hadrons containing four light quarks and a heavy antiquark. The spin-dependent part of the Hamiltonian is dominated by the short-range part of the Goldstone-boson-exchange interaction. We find that these systems are not bound, having an energy above the lowest dissociation threshold into a baryon and a meson.
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Submitted on : Friday, January 29, 1999 - 9:10:44 AM
Last modification on : Thursday, November 19, 2020 - 12:58:18 PM

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M. Genovese, J.-M. Richard, Fl. Stancu, S. Pepin. Heavy-flavour pentaquarks in a chiral constituent quark model. Physics Letters B, Elsevier, 1998, 425, pp.171-176. ⟨in2p3-00003485⟩

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