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https://hdl.handle.net/2440/63311
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DC Field | Value | Language |
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dc.contributor.author | Navarra, F. | - |
dc.contributor.author | Nielson, M. | - |
dc.contributor.author | Tsushima, K. | - |
dc.date.issued | 2005 | - |
dc.identifier.citation | Physics Letters B: Nuclear Physics and Particle Physics, 2005; 606(3-4):335-341 | - |
dc.identifier.issn | 0370-2693 | - |
dc.identifier.uri | http://hdl.handle.net/2440/63311 | - |
dc.description.abstract | We consider a [ud]2s̄ current, in the finite-density QCD sum rule approach, to investigate the scalar and vector self-energies of the recently observed pentaquark state Θ+(1540), propagating in nuclear matter. We find that, opposite to what was obtained for the nucleon, the vector self-energy is negative, and the scalar self-energy is positive. There is a substantial cancellation between them resulting in an attractive net self-energy of the same order as in the nucleon case. © 2004 Elsevier B.V. All rights reserved. | - |
dc.description.statementofresponsibility | F.S. Navarra, M. Nielsen, K. Tsushima | - |
dc.language.iso | en | - |
dc.publisher | Elsevier Science BV | - |
dc.rights | Copyright © 2004 Elsevier B.V. All rights reserved. | - |
dc.source.uri | http://dx.doi.org/10.1016/j.physletb.2004.12.016 | - |
dc.title | A QCD sum rule study of Θ⁺ in nuclear matter | - |
dc.title.alternative | A QCD sum rule study of Theta+ in nuclear matter | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1016/j.physletb.2004.12.016 | - |
pubs.publication-status | Published | - |
Appears in Collections: | Aurora harvest 5 Physics publications |
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