Zeitschrift für Physik A Hadrons and Nuclei

, Volume 357, Issue 4, pp 425–427 | Cite as

QCD sum rule for Λ(1405)

Article

Abstract

Motivated by the recently constructed interpolation field for S11(1535), we propose a new interpolating field for Λ(1405). Using this current, we calculate the mass of Λ(1405) based on the conventional QCD sum rule analysis. By calculating the Wilson coefficients up to dimension 8 operators and taking into account the mass corrections from s-quark, we find the calculated mass of Λ(1405) to be very close to its experimental value.

PACS

14.20.Gk 12.38.Lg 

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Copyright information

© Springer-Verlag 1997

Authors and Affiliations

  1. 1.Department of PhysicsYonsei UniversitySeoulKorea

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