Effects of Instanton Induced Interaction on the Pentaquarks

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dc.creatorShinozaki, Tetsuya
dc.creatorOka, Makoto
dc.creatorTakeuchi, Sachiko
dc.date2004-09-09
dc.date.accessioned2026-07-07T11:58:30Z
dc.date.available2026-07-07T11:58:30Z
dc.descriptionRoles of instanton induced interactions (III) in the masses of pentaquark baryons, Theta^+ (J=1/2 and 3/2) and Xi^{--}, and a dibaryon, H, are discussed using the MIT bag model in the negative parity case. It is shown that the two-body terms in III give a strong attraction mainly due to the increase of the number of pairs in multi-quark systems. In contrast, the three-body u-d-s interaction is repulsive. It is found that III lowers the mass of Theta^+ as much as 100 MeV from the mass predicted by the bag model without III.
dc.description11 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/hep-ph/0409103
dc.identifierhttp://arxiv.org/abs/hep-ph/0409103
dc.identifierPhys.Rev.D71:074025,2005
dc.identifierdoi:10.1103/PhysRevD.71.074025
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/206247
dc.subjectHigh Energy Physics - Phenomenology
dc.titleEffects of Instanton Induced Interaction on the Pentaquarks
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