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A new look at scalar mesons

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arxiv hep-ph/0407017 v2 pith:SWFSFYN7 submitted 2004-07-01 hep-ph

L. Maiani , A. Polosa , F. Piccinini , V. Riquer This is my paper
classification hep-ph
keywords mesonsscalarstatesallowedamplitudebeautybrieflycharm
verification ladder T0 review T1 audit T2 compute T3 formal
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Light scalar mesons are found to fit rather well a diquark-antidiquark description. The resulting nonet obeys mass formulae which respect, to a good extent, the OZI rule. OZI allowed strong decays are reasonably reproduced by a single amplitude describing the switch of a qbar-q pair, which transforms the state into two colourless pseudoscalar mesons. Predicted heavy states with one or more quarks replaced by charm or beauty are briefly described; they should give rise to narrow states with exotic quantum numbers.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Investigating the role of tetraquark operators in lattice QCD studies of the $a_0(980)$ and $\kappa$ resonances

    hep-lat 2026-03 conditional novelty 6.0 of 10

    Including at least one tetraquark operator in lattice QCD correlator matrices reveals a previously missed finite-volume energy level in the Kη subsystem and drastically changes the extracted a0(980) channel spectrum.

  2. Light scalar mesons in D^+, D_s^+ decays into three pseudoscalars

    hep-ph 2025-08 conditional novelty 5.0 of 10

    A fit of D_s^+ -> K Kbar pi amplitudes supports a tetraquark plus instanton-mixing picture of light scalar mesons, with mixed success in other charm decay channels.

  3. $X(3872)$ and hidden charmed tetraquarks

    hep-ph 2025-06 conditional novelty 4.0 of 10

    A diquark-antidiquark quark model with parameters fitted to X(3872) and Tcc predicts hidden-charm tetraquark masses and tentatively assigns XYZ states.

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