Mass of the Lowest Scalar (0++) Glueball in the QCD Sum Rules

Abstract

The mass of the lowest scalar glueball is discussed by using QCD sum rules. We find that the glueball mass is sensitive to the choice of moments and slightly depends on the radiative corrections. With the help of suitable moments and stability criteria, we get the scalar glueball mass: $1710\pm 110$ MeV without radiative corrections and $1580\pm 150$ MeV with radiative corrections.

Comments: 11 pages, Latex, 4 figures