The Nature of the X(2175)
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 $\phi$(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.
- Publication:
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arXiv e-prints
- Pub Date:
- May 2009
- DOI:
- 10.48550/arXiv.0905.3302
- arXiv:
- arXiv:0905.3302
- Bibcode:
- 2009arXiv0905.3302C
- Keywords:
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- High Energy Physics - Phenomenology
- E-Print:
- Acta Physica Polonica style, 6 pages, 2 figures (4 plots)