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Article: Light flavor baryon spectrum with higher order hyperfine interactions

TitleLight flavor baryon spectrum with higher order hyperfine interactions
Authors
KeywordsBaryons
Gell-Mann-Okubo Mass Formula
Spectrum
Two-Gluon Exchange
Issue Date2009
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/nuclphysa
Citation
Nuclear Physics A, 2009, v. 831 n. 1-2, p. 1-21 How to Cite?
AbstractWe study the spectrum of light flavor baryons in a quark-model framework by taking into account the order O (αs 2) hyperfine interactions due to two-gluon exchange between quarks. The calculated spectrum agree better with the experimental data than the results from hyperfine interactions with only one-gluon exchange. It is also shown that two-gluon exchange hyperfine interactions bring a significantly improved correction to the Gell-Mann-Okubo mass formula. Two-gluon exchange corrections on baryon excitations (including negative parity baryons) are also briefly discussed. © 2009 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/92321
ISSN
2015 Impact Factor: 1.258
2015 SCImago Journal Rankings: 1.004
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorChen, Yen_HK
dc.contributor.authorMa, B-Qen_HK
dc.date.accessioned2010-09-17T10:42:35Z-
dc.date.available2010-09-17T10:42:35Z-
dc.date.issued2009en_HK
dc.identifier.citationNuclear Physics A, 2009, v. 831 n. 1-2, p. 1-21en_HK
dc.identifier.issn0375-9474en_HK
dc.identifier.urihttp://hdl.handle.net/10722/92321-
dc.description.abstractWe study the spectrum of light flavor baryons in a quark-model framework by taking into account the order O (αs 2) hyperfine interactions due to two-gluon exchange between quarks. The calculated spectrum agree better with the experimental data than the results from hyperfine interactions with only one-gluon exchange. It is also shown that two-gluon exchange hyperfine interactions bring a significantly improved correction to the Gell-Mann-Okubo mass formula. Two-gluon exchange corrections on baryon excitations (including negative parity baryons) are also briefly discussed. © 2009 Elsevier B.V. All rights reserved.en_HK
dc.languageengen_HK
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/nuclphysaen_HK
dc.relation.ispartofNuclear Physics Aen_HK
dc.subjectBaryonsen_HK
dc.subjectGell-Mann-Okubo Mass Formulaen_HK
dc.subjectSpectrumen_HK
dc.subjectTwo-Gluon Exchangeen_HK
dc.titleLight flavor baryon spectrum with higher order hyperfine interactionsen_HK
dc.typeArticleen_HK
dc.identifier.emailChen, Y:ychenc@hkucc.hku.hken_HK
dc.identifier.authorityChen, Y=rp1318en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.nuclphysa.2009.09.005en_HK
dc.identifier.scopuseid_2-s2.0-71549144447en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-71549144447&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume831en_HK
dc.identifier.issue1-2en_HK
dc.identifier.spage1en_HK
dc.identifier.epage21en_HK
dc.identifier.isiWOS:000272070500001-
dc.identifier.citeulike5777374-

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