A QCD sum rule approach with an explicit di-quark field

Kyung Il Kim, Daisuke Jido, Su Houng Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In hadron phenomenology, diquark structures can be an important degree of freedom in certain configurations. We investigate the possibility that the diquark structure can be treated as an elementary field in certain configurations. To start with, we assume that Λ is composed of a spectator strange quark and a diquark. We construct a QCD sum rule for Λ, where the input parameters are the diquark mass and its condensate, in addition to other parameters of QCD sum rules. We find good Borel curve for the Λ mass for certain combinations of the diquark mass and condensate, and that smaller diquark condensate is needed when the diquark mass is increased to maintain the good Borel curve. The same sets of diquark mass and condensate are found to work well for Λc and Λb.

Original languageEnglish
Title of host publicationInternational Conference on the Structure of Baryons, BARYONS'10
Pages447-450
Number of pages4
DOIs
Publication statusPublished - 2011 Nov 24
EventInternational Conference on the Structure of Baryons, BARYONS'10 - Osaka, Japan
Duration: 2010 Dec 72010 Dec 11

Publication series

NameAIP Conference Proceedings
Volume1388
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherInternational Conference on the Structure of Baryons, BARYONS'10
CountryJapan
CityOsaka
Period10/12/710/12/11

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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  • Cite this

    Kim, K. I., Jido, D., & Lee, S. H. (2011). A QCD sum rule approach with an explicit di-quark field. In International Conference on the Structure of Baryons, BARYONS'10 (pp. 447-450). (AIP Conference Proceedings; Vol. 1388). https://doi.org/10.1063/1.3647428