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Searching for observable effects induced by anomalous triangle singularities

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arxiv 1507.01674 v2 pith:P223CUZ3 submitted 2015-07-07 hep-ph hep-exnucl-exnucl-th

Xiao-Hai Liu , Makoto Oka , Qiang Zhao This is my paper · ORCID
classification hep-phhep-exnucl-exnucl-th
keywords anomaloustrianglediscussionsdistinguishdynamiceffectsgenuineimpact
verification ladder T0 review T1 audit T2 compute T3 formal

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We investigate the anomalous triangle singularity (ATS) and its possible manifestations in various processes. We show that the ATS should have important impact on our understanding of the nature of some newly observed threshold states. Discussions on how to distinguish the ATS phenomena from genuine dynamic pole structures are presented.

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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. The $a_1(1420)$ in a Unitary Coupled-Channel Three-Body Approach

    hep-ph 2026-06 unverdicted novelty 6.5 of 10

    Unitary coupled-channel three-body model fitted to COMPASS data reproduces the a1(1420) enhancement via triangle singularity, indicating no genuine resonance pole is required.

  2. Production of $X(3872)$ and a Photon in $e^+e^-$ Annihilation

    hep-ph 2019-09 conditional novelty 5.0 of 10

    If X(3872) is a charm-meson molecule, e+e- -> X gamma has a narrow triangle-singularity peak at 2.2 MeV above the D*0 Dbar*0 threshold, with a peak cross section near 0.5 pb.

  3. Heavy hadronic molecules with pion exchange and quark core couplings: a guide for practitioners

    hep-ph 2019-08 conditional novelty 5.0 of 10

    X(3872) is best described as a shallow D D* molecule in which one-pion exchange and a small charmonium core provide comparable attraction.

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