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arXiv · 0905.3302

The Nature of the X(2175)

S. Coito·G. Rupp·E. van Beveren
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Abstract

We study the puzzling vector meson X(2175) in a multichannel generalisation of the Resonance-Spectrum-Expansion model. Besides the usual P-wave pseudoscalar-pseudoscalar, pseudoscalar-vector, and vector-vector channels that couple to mesons with vector quantum numbers, we also include the important S-wave vector-scalar, pseudoscalar-axialvector and vector-axialvector channels, including the observed $ϕ$(1020)$f_0$(980) decay mode. The strong coupling to nearby S-wave channels originates dynamically generated poles, two of which come out close to the energy region of the X(2175), viz. at (2.037-i0.170) GeV and (2.382-i0.20) GeV. Further improvements are proposed.

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S. Coito, G. Rupp, E. van Beveren. 2009-05-20. The Nature of the X(2175). https://arxiv.org/abs/0905.3302

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