Scalar Glueball: Analysis of the (IJ PC = 00++)-wave
نویسندگان
چکیده
منابع مشابه
The scalar glueball
We analyze several scenarios for a scalar glueball using arguments based on sum rules, spectral decomposition, the 1 Nc approximation, the scales of the strong interaction and the topology of the flux tubes. The most appealing scenario on which we elaborate is one with a light glueball. Pacs: 12.38-t, 12.38.Aw,14.70.-e, 14.70.-j
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We discuss scenarios for scalar glueballs using arguments based on sum rules, spectral decomposition, the 1 Nc approximation, the scales of the strong interaction and the topology of the flux tubes. We analyze the phenomenological support of those scenarios and their observational implications. Our investigations hint a rich low lying glueball spectrum. Pacs: 12.38-t, 12.38.Aw,14.70.-e, 14.70.-j
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Computations in the quenched approximation on the lattice predict the lightest glueball to be a scalar in the 1.5−1.8 GeV region. Here we calculate the dynamical effect the coupling to two pseudoscalars has on the mass, width and decay pattern of such a scalar glueball. These hadronic interactions allow mixing with the qq scalar nonet, which is largely fixed by the well-established K 0(1430). T...
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A scalar model of the glueball is offered. The model is based on the nonperturbative calculation of 2 and 4-points Green’s functions. Approximately they can be expressed via a scalar field. On the basis of the SU(3) Yang-Mills Lagrangian an effective Lagrangian for the scalar field is derived. The corresponding field equations are solved for the spherically symmetric case. The obtained solution...
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The identification of fJ(1710) as the lightest scalar glueball is supported at present by two different sets of calculations. For the valence approximation to the infinite volume continuum limit of the lightest scalar glueball mass, a calculation on GF11 [1], using 25000 to 30000 gauge configurations, gives 1740 ± 71 MeV. An independent calculation by the UKQCD-Wuppertal [2] collaboration, usin...
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ژورنال
عنوان ژورنال: Zeitschrift für Physik A Hadrons and Nuclei
سال: 1997
ISSN: 0939-7922,1431-5831
DOI: 10.1007/s002180050385