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Scalar and tensor resonances in J/psi radiative decays

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arxiv 2110.00027 v1 pith:KFCCCFD5 submitted 2021-09-30 hep-ph hep-exnucl-th

Scalar and tensor resonances in J/psi radiative decays

JPAC Collaboration: A. Rodas , A. Pilloni , M. Albaladejo , C. Fernandez-Ramirez , V. Mathieu , A. P. Szczepaniak This is my paper
classification hep-ph hep-exnucl-th
keywords analysisgammaglueballresonancesscalartensoramplitudebesiii
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We perform a systematic analysis of the $J/\psi \to \gamma \pi^0\pi^0$ and $\to \gamma K_S^0 K_S^0$ partial waves measured by BESIII. We use a large set of amplitude parametrizations to reduce the model bias. We determine the physical properties of seven scalar and tensor resonances in the 1-2.5 GeV mass range. These include the well known $f_0(1500)$ and $f_0(1710)$, that are considered to be the primary glueball candidates. The hierarchy of resonance couplings determined from this analysis favors the latter as the one with the largest glueball component.

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Cited by 2 Pith papers

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  1. Scalar glueball-$s\bar{s}$ mixing in one flavor lattice QCD

    hep-lat 2026-07 conditional novelty 7.0

    A lattice QCD simulation with one dynamical strange quark finds a large scalar glueball-s̄s mixing angle |θ|≈40.7(2.7)° and mixing energy x_s≈239(24) MeV, implying strong glueball-strange-quark mixing.

  2. Amplitude analysis of $\psi(3686)\to \gamma K_S^0 K_S^0 $

    hep-ex 2025-02 unverdicted novelty 7.0

    First amplitude analysis of ψ(3686)→γKS0KS0 with a one-channel K-matrix finds four f0 and three f2 poles consistent with known states and reports branching-fraction ratios to J/ψ decays that constrain possible gluebal...