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Axial resonances in the open and hidden charm sectors

  • Regular Article - Experimental Physics
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Abstract.

A SU(4) flavor symmetrical Lagrangian is constructed for the interaction of the pseudo-scalar mesons with the vector mesons. SU(4) symmetry is broken to SU(3) by suppression of terms in the Lagrangian where the interaction should be driven by charmed mesons. Chiral symmetry can be restored by setting this new SU(4) symmetry-breaking parameters to zero. Unitarization in coupled channels leads to the dynamical generation of resonances. Many known axial resonances can be identified including the new controversial X(3872) and the structure found recently by Belle around 3875MeV in the hidden charm sector. Also new resonances are predicted, some of them with exotic quantum numbers.

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Article Open access 04 October 2022

Y. Aoki, T. Blum, … Flavour Lattice Averaging Group (FLAG)

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Authors and Affiliations

  1. Departamento de Fısica Teórica and IFIC, Centro Mixto Universidad de Valencia-CSIC, Institutos de Investigación de Paterna, Aptdo. 22085, 46071, Valencia, Spain

    D. Gamermann & E. Oset

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  1. D. Gamermann
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  2. E. Oset
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Correspondence to D. Gamermann.

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A. Schäfer

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Gamermann, D., Oset, E. Axial resonances in the open and hidden charm sectors. Eur. Phys. J. A 33, 119–131 (2007). https://doi.org/10.1140/epja/i2007-10435-1

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