TY - GEN
T1 - A QCD sum rule approach with an explicit di-quark field
AU - Kim, Kyung Il
AU - Jido, Daisuke
AU - Lee, Su Houng
N1 - Copyright:
Copyright 2011 Elsevier B.V., All rights reserved.
PY - 2011
Y1 - 2011
N2 - 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.
AB - 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.
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U2 - 10.1063/1.3647428
DO - 10.1063/1.3647428
M3 - Conference contribution
AN - SCOPUS:81555215707
SN - 9780735409521
T3 - AIP Conference Proceedings
SP - 447
EP - 450
BT - International Conference on the Structure of Baryons, BARYONS'10
T2 - International Conference on the Structure of Baryons, BARYONS'10
Y2 - 7 December 2010 through 11 December 2010
ER -