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http://hdl.handle.net/2445/131770
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DC Field | Value | Language |
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dc.contributor.author | Beane, Silas R. | - |
dc.contributor.author | Chang, Emmanuel | - |
dc.contributor.author | Detmold, William | - |
dc.contributor.author | Lin, H. W. | - |
dc.contributor.author | Luu, Thomas C. | - |
dc.contributor.author | Orginos, Kostas | - |
dc.contributor.author | Parreño García, Assumpta | - |
dc.contributor.author | Savage, Martin J. | - |
dc.contributor.author | Torok, Aaron | - |
dc.contributor.author | Walker-Loud, André | - |
dc.contributor.author | NPLQCD Collaboration | - |
dc.date.accessioned | 2019-04-08T11:17:59Z | - |
dc.date.available | 2019-04-08T11:17:59Z | - |
dc.date.issued | 2012-03-01 | - |
dc.identifier.issn | 1550-7998 | - |
dc.identifier.uri | http://hdl.handle.net/2445/131770 | - |
dc.description.abstract | Results of a high-statistics, multivolume lattice QCD exploration of the deuteron, the dineutron, the H-dibaryon, and the Ξ − Ξ − system at a pion mass of m π ∼ 390 MeV are presented. Calculations were performed with an anisotropic n f = 2 + 1 clover discretization in four lattice volumes of spatial extent L ∼ 2.0 , 2.5, 2.9, and 3.9 fm, with a lattice spacing of b s ∼ 0.123 fm in the spatial direction and b t ∼ b s / 3.5 in the time direction. Using the results obtained in the largest two volumes, the Ξ − Ξ − is found to be bound by B Ξ − Ξ − 0 = 14.0 ( 1.4 ) ( 6.7 ) MeV , consistent with expectations based upon phenomenological models and low-energy effective field theories constrained by nucleon-nucleon and hyperon-nucleon scattering data at the physical light-quark masses. Further, we find that the deuteron and the dineutron have binding energies of B d = 11 ( 05 ) ( 12 ) MeV and B n n = 7.1 ( 5.2 ) ( 7.3 ) MeV , respectively. With an increased number of measurements and a refined analysis, the binding energy of the H-dibaryon is B H = 13.2 ( 1.8 ) ( 4.0 ) MeV at this pion mass, updating our previous result. | - |
dc.format.extent | 15 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | American Physical Society | - |
dc.relation.isformatof | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.85.054511 | - |
dc.relation.ispartof | Physical Review D, 2012, vol. 85, num. 5, p. 054511 | - |
dc.relation.uri | https://doi.org/10.1103/PhysRevD.85.054511 | - |
dc.rights | (c) American Physical Society, 2012 | - |
dc.source | Articles publicats en revistes (Física Quàntica i Astrofísica) | - |
dc.subject.classification | Física de partícules | - |
dc.subject.classification | Experiments | - |
dc.subject.other | Particle physics | - |
dc.subject.other | Experiments | - |
dc.title | The Deuteron and Exotic Two-Body Bound States from Lattice QCD | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 606131 | - |
dc.date.updated | 2019-04-08T11:17:59Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
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606131.pdf | 1.55 MB | Adobe PDF | View/Open |
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