Physics of Atomic Nuclei

, Volume 69, Issue 3, pp 520–527

Observation of the tensor glueball

  • V. V. Anisovich
  • M. A. Matveev
  • J. Nyiri
  • A. V. Sarantsev
Elementary Particles and Fields Theory

DOI: 10.1134/S1063778806030148

Cite this article as:
Anisovich, V.V., Matveev, M.A., Nyiri, J. et al. Phys. Atom. Nuclei (2006) 69: 520. doi:10.1134/S1063778806030148

Abstract

In the reactions p-pπ0π0, ηη, ηη′, in the mass region 1900–2400 MeV there are four relatively narrow resonances f2(1920), f2(2020), f2(2240), and f2(2300) and a broad one f2(2000). In the framework of quark combinatorics, we carry out an analysis of the decay constants for all five resonances. It is shown that the relations for the decay constants corresponding to the broad resonance f2(2000) → π0π0, ηη, ηη′ are the same as those corresponding to a glueball. An additional argument in favor of the glueball nature of f2(2000) is the fact that f2(1920), f2(2020), f2(2240), and f2(2300) fit well the q-q trajectories in the (n, M2) plane (where n is the radial quantum number), while the broad f2(2000) resonance turns out to be an unnecessary extra state for these trajectories.

PACS numbers

14.40.-n 12.38.-t 12.39.-MK 

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Copyright information

© Pleiades Publishing, Inc. 2006

Authors and Affiliations

  • V. V. Anisovich
    • 3
  • M. A. Matveev
    • 3
  • J. Nyiri
    • 1
    • 3
  • A. V. Sarantsev
    • 2
    • 3
    • 4
  1. 1.KFKI Research Institute for Particle and Nuclear PhysicsBudapestHungary
  2. 2.Petersburg Nuclear Physics InstituteRussian Academy of SciencesGatchinaRussia
  3. 3.Petersburg Nuclear Physics InstituteRussian Academy of SciencesGatchinaRussia
  4. 4.HISKP, UniversitätBonnGermany

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