The Axial Glueball In Lattice Qcd
PHYSICS LETTERS B(1986)
摘要
Using the t-expansion to order t7 the mass of the axial glueball in lattice QCD is investigated. The Padé approximants display a minimum around 2 GeV but have no extended scaling region. This result is consistent with the lack of scaling observed in Monte Carlo calculations in this channel. It also explains why hamiltonian strong-coupling calculations lead to non-trivial results. If scalling should set in at higher orders of the t-expansion, the minimum at 2 GeV could be indicative of the resulting mass-scale.
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关键词
higher order,lattice qcd,monte carlo
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