G(1590)-Meson and possible characteristic features of a glueball

Герштейн, С.С.; Likhoded, A. A.; Prokoshkin, Yu.D.

doi:10.1007/bf01410369

Cited by 60 publications

(39 citation statements)

References 5 publications

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“…The examples of different fixations of g L /g N L may be found in [40,49]. Let us stress once again that the coupling constant ratios for the (qq) a -states (Table II) become identical to those of the glueball, when φ = arctan λ 2 : it is valid for leading and next-to-leading contributions.…”

Section: Qq-mesons: the Problem Of Small And Large Distancesmentioning

confidence: 79%

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The lightest scalar glueball

Anisovich

1998

Phys.-Usp.

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Recently performed investigations of meson spectra allow us to determine the resonance structure for the waves IJ P C = 00 ++ , 10 ++ , 02 ++ , 12 ++ = IJ P = 1 2 0 + in the mass region up to 1900 MeV, thus establishing the meson multiplets 1 3 P0qq and 2 3 P0qq. Experimental data demonstrate that there are five scalar/isoscalar states in this mass region. Four of them are qq states, that is, members of the 1 3 P0qq and 2 3 P0qq nonets, while the fifth state is an extra one not accomodated by qq systematics; it has the properties of the lightest scalar glueball. Analysis of the 00 ++ -wave performed within the framework of the dispersion relation technique allows us to reconstruct the mixing of a pure gluonium with neighbouring scalar qq states belonging to 1 3 P0qq and 2 3 P0qq nonets: three scalar mesons share the gluonium state between each other -those are two comparatively narrow resonances f0(1300) and f0(1500) and a broad resonance f0(1530 +90 −250 ). The broad state is a descendant of the gluonium, keeping about 40-50% of its component.

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Section: Qq-mesons: the Problem Of Small And Large Distancesmentioning

confidence: 79%

“…The calculation of couplings in the decays glueball → mesons has been carried out in Refs. [20,34,49].…”

Section: Qq-mesons: the Problem Of Small And Large Distancesmentioning

confidence: 99%

The lightest scalar glueball

Anisovich

1998

Phys.-Usp.

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“…The rules of quark combinatorics were first suggested for the high-energy hadron production [59] and then extended for hadronic J/Ψ decays [60]. The quark-combinatorics relations were used for the decay couplings of the scalarisoscalar states in the analysis of the quark-gluonium content of resonances in [61] and later on in the K-matrix analyses [8,9,10,11,20,57].…”

Section: Classification Of Scalar Bare Statesmentioning

confidence: 99%

Systematics of quark–antiquark states and scalar exotic mesons

Anisovich¹

2004

Phys.-Usp.

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The analysis of the experimental data of Crystal Barrel Collaboration on the pp annihilation in flight with the production of mesons in the final state resulted in a discovery of a large number of mesons over the region 1900-2400 MeV, thus allowing us to systematize quark-antiquark states in the (n, M 2 ) and (J, M 2 ) planes, where n and J are radial quantum number and spin of the meson with the mass M . The data point to meson trajectories in these planes being approximately linear, with a universal slope. The sector of scalar mesons is discussed in more detail, where, on the basis of the recent K-matrix analysis, the nonet classification of quark-antiquark states was performed: in the region below 2000 MeV, two scalar nonets are fixed, that is, the basic one and the nonet of the first radial excitation. In the scalar sector, there are two states with the isospin

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“…14 ) The same reasoning suggests a sizeable rate for t/J-1G, so far unobserved. As for the 11 signals discussed above, it may be difficult to observe the scalar G below the tensor f) in their common '7'7 decay mode.…”

Section: \) #4 Scalarsmentioning

confidence: 85%

“…• It has been suggested that glueballs might be favored in PI> annihilation, in central production, and in Zweig-rule-violating rea.ctions 13 ) and that they may decay to pairs of fJ and/or '7' mesons, 14 ) whereas production of ordinary mesons is favored in peripheral pion and ka.on scattering. These are plausible suggestions.…”

Section: ~mentioning

confidence: 99%

The meson spectrum between 1 and 2 GeV: Gluonic states and other exotica

Chanowitz

1991

Nuclear Physics A

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G(1590)-Meson and possible characteristic features of a glueball

Cited by 60 publications

References 5 publications

The lightest scalar glueball

The lightest scalar glueball

Systematics of quark–antiquark states and scalar exotic mesons

The meson spectrum between 1 and 2 GeV: Gluonic states and other exotica

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