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https://hdl.handle.net/2440/18050
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DC Field | Value | Language |
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dc.contributor.author | Cloet, I. | - |
dc.contributor.author | Leinweber, D. | - |
dc.contributor.author | Thomas, A. | - |
dc.date.issued | 2003 | - |
dc.identifier.citation | Physics Letters B: Nuclear Physics and Particle Physics, 2003; 563(3-4):157-164 | - |
dc.identifier.issn | 0370-2693 | - |
dc.identifier.uri | http://hdl.handle.net/2440/18050 | - |
dc.description | Copyright © 2003 Elsevier Science B.V. All rights reserved. | - |
dc.description.abstract | Theoretical predictions for the magnetic moments of the physical Δ baryons are extracted from lattice QCD calculations. We utilize finite-range regulated effective field theory that is constructed to have the correct Dirac moment mass dependence in the region where the u and d quark masses are heavy. Of particular interest is the chiral nonanalytic behaviour encountered as the Nπ decay channel opens. We find a Δ++ magnetic moment (at the Δ pole) of μΔ++ = (4.99 ± 0.56)μN. This result is within the Particle Data Group range of 3.7-7.5 μN and compares well with the experimental result of Bosshard et al. of μΔ++ = (4.52 ± 0.51 ± 0.45)μN. The interplay between the different pion-loop contributions to the Δ+ magnetic moment leads to the surprising result that the proton moment may exceed that of the Δ+, contrary to conventional expectations. © 2003 Elsevier Science B.V. All rights reserved. | - |
dc.description.statementofresponsibility | I. C. Cloet, D. B. Leinweber and A. W. Thomas | - |
dc.description.uri | http://www.elsevier.com/wps/find/journaldescription.cws_home/505706/description#description | - |
dc.language.iso | en | - |
dc.publisher | Elsevier Science BV | - |
dc.source.uri | http://dx.doi.org/10.1016/s0370-2693(03)00418-0 | - |
dc.title | Delta baryon magnetic moments from lattice QCD | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1016/S0370-2693(03)00418-0 | - |
pubs.publication-status | Published | - |
dc.identifier.orcid | Leinweber, D. [0000-0002-4745-6027] | - |
dc.identifier.orcid | Thomas, A. [0000-0003-0026-499X] | - |
Appears in Collections: | Aurora harvest 6 Physics publications |
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