TY - JOUR
T1 - Glueball masses as a test of the 1/N expansion
AU - Chin, Siu A.
AU - Karliner, Marek
PY - 1987
Y1 - 1987
N2 - We compute the scalar-glueball mass m(0++) in units of the square root of the string tension, for SU(N) gauge theories on the lattice, with N=2,3,5,6. We identify a general-scaling window in which the glueball mass is approximately independent of the lattice spacing, yielding an estimate of m(0++) in the continuum. The estimate is corroborated by the excellent agreement between Hamiltonian and Lagrangean results for N=2,3. The continuum values of m(0++) thus obtained for various values of N are remarkably close to each other, indicating a rapid convergence of the 1/N expansion.
AB - We compute the scalar-glueball mass m(0++) in units of the square root of the string tension, for SU(N) gauge theories on the lattice, with N=2,3,5,6. We identify a general-scaling window in which the glueball mass is approximately independent of the lattice spacing, yielding an estimate of m(0++) in the continuum. The estimate is corroborated by the excellent agreement between Hamiltonian and Lagrangean results for N=2,3. The continuum values of m(0++) thus obtained for various values of N are remarkably close to each other, indicating a rapid convergence of the 1/N expansion.
UR - http://www.scopus.com/inward/record.url?scp=4243751385&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.58.1803
DO - 10.1103/PhysRevLett.58.1803
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AN - SCOPUS:4243751385
SN - 0031-9007
VL - 58
SP - 1803
EP - 1806
JO - Physical Review Letters
JF - Physical Review Letters
IS - 18
ER -