Hidden charm dynamically generated resonances and the e(+)e(-) -> J/psi D(D)over-bar, J/psi D(D)over-bar * reactions
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Hidden charm dynamically generated resonances and the e(+)e(-) -> J/psi D(D)over-bar, J/psi D(D)over-bar * reactions

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Hidden charm dynamically generated resonances and the e(+)e(-) -> J/psi D(D)over-bar, J/psi D(D)over-bar * reactions

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Gamermann, D.; Oset Báguena, Eulogio Perfil
This document is a artículoDate2008

Este documento está disponible también en : http://hdl.handle.net/10550/46892
We analyze two recent reactions of Belle, producing DD¯ and DD¯∗ states that have an enhancement of the invariant DD¯, DD¯∗ mass distribution close to threshold, from the point of view that they might be indicative of the existence of a hidden charm scalar and an axial vector meson states below DD¯ or DD¯∗ thresholds, respectively. We conclude that the data is compatible with the existing prediction of a hidden charm scalar meson with mass around 3700 MeV, though other possibilities cannot be discarded. The peak seen in the DD¯∗ spectrum above threshold is, however, unlikely to be due to a threshold enhancement produced by the presence, below threshold, of the hidden charm axial vector meson X(3872).

    Gamermann, D. Oset Báguena, Eulogio 2008 Hidden charm dynamically generated resonances and the e(+)e(-) -> J/psi D(D)over-bar, J/psi D(D)over-bar * reactions European Physical Journal A 36 2 189 194
http://dx.doi.org/10.1140/epja/i2007-10580-5

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