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- W1749831728 abstract "A multichannel calculation of excited $J^{PC}=1^{--}$ $phi$ states is carried out within a generalization of the Resonance-Spectrum Expansion, which may shed light on the classification of the $phi(2170)$ resonance, discovered by BABAR and originally denoted X(2175). In this framework, a complete spectrum of bare $sbar{s}$ states is coupled to those OZI-allowed decay channels that should be most relevant for the considered energy range. The included $S$- and $P$-wave two-meson channels comprise the lowest pseudoscalar, vector, scalar, and axial-vector mesons, while in the $qbar{q}$ sector both the $^{3}S_1$ and $^{3}D_1$ states are coupled. The only two free parameters are tuned so as to reproduce mass and width of the $phi(1020)$, but come out reasonably close to previously used values. Among the model's $T$-matrix poles, there are good candidates for observed resonances, as well other ones that should exist according to the quark model. Besides the expected resonances as unitarized confinement states, a dynamical resonance pole is found at $(2186-i246)$ MeV. The huge width makes its interpretation as the $phi(2170)$ somewhat dubious, but further improvements of the model may change this conclusion." @default.
- W1749831728 created "2016-06-24" @default.
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- W1749831728 date "2009-11-16" @default.
- W1749831728 modified "2023-10-06" @default.
- W1749831728 title "Multichannel calculation of excited vector<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mi>ϕ</mml:mi></mml:math>resonances and the<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mi>ϕ</mml:mi><mml:mo stretchy=false>(</mml:mo><mml:mn>2170</mml:mn><mml:mo stretchy=false>)</mml:mo></mml:math>" @default.
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- W1749831728 doi "https://doi.org/10.1103/physrevd.80.094011" @default.
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