Phys. Rev. D 71, 011501(R) (2005) [5 pages]Are the anticharmed and bottomed pentaquarks molecular heptaquarks?
I study the charmed uuddc̅ resonance D*-p(3100) very recently discovered by H1 Collaboration at HERA, using a standard quark model with a quark-antiquark annihilation constrained by chiral symmetry. I find that repulsion excludes the D*-p(3100) as a uuddc̅ s-wave pentaquark. I explore the D*-p(3100) as a heptaquark, equivalent to a N-π-D* borromean linear molecule, with positive parity and total isospin I=0. I find that the N-D repulsion is canceled by the attraction existing in the N-π and π-D channels. Multiquark molecules N-π-D, N-π-B*, and N-π-B are also predicted. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.71.011501
DOI:
10.1103/PhysRevD.71.011501
PACS:
12.39.Mk
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