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Magnetic and quadrupole moments of the $Z_c(3900)$

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arxiv 1707.09612 v2 pith:IW4QXDAY submitted 2017-07-30 hep-ph

U. Ozdem , K. Azizi This is my paper · ORCID
classification hep-ph
keywords magneticquadrupolemomentschargeelectromagneticmomentbackgrounddiquark-antidiquark
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abstract

The electromagnetic properties of the tetraquark state $Z_c(3900)$ are investigated in the diquark-antidiquark picture and its magnetic and quadrupole moments are extracted. To this end, the light-cone QCD sum rule in electromagnetic background field is used. The magnetic and quadrupole moments encode the spatial distributions of the charge and magnetization in the particle. The result obtained for the magnetic moment is quite large and can be measured in future experiments. We obtain a nonzero but small value for the quadrupole moment of $Zc(3900)$ indicating a nonspherical charge distribution.

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Cited by 2 Pith papers

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

  1. Tensor form factors of decuplet hyperons in QCD

    hep-ph 2026-01 unverdicted novelty 5.0 of 10

    QCD sum rules yield numerical tensor form factors for Ω^-, Σ^{*+}, and Ξ^{*-} up to 10 GeV² together with forward-limit quark tensor charges.

  2. Investigating the underlying structure of vector hidden-charm tetraquark states via their electromagnetic characteristics

    hep-ph 2024-12 conditional novelty 5.0 of 10

    QCD light-cone sum rules give magnetic moments for vector hidden-charm tetraquarks that depend strongly on the chosen diquark-antidiquark current.

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