The e{sup +}e{sup -}{yields}J/{psi}DD-bar, J/{psi}DD-bar reactions with dynamically generated resonances

In two recent reactions by Belle producing DD-bar and DD-bar* meson pairs, peaks above threshold have been measured in the differential cross sections, possibly indicating new resonances in these channels. We want to study such reactions from the point of view that the D meson pairs are produced fro...

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Bibliographic Details
Published inAIP conference proceedings Vol. 1030; no. 1
Main Authors Gamermann, D., Oset, E.
Format Journal Article
LanguageEnglish
Published United States 31.08.2008
Subjects
BETHE-SALPETER EQUATION
CHIRAL SYMMETRY
D MESONS
D-2010 MESONS
DIFFERENTIAL CROSS SECTIONS
ELECTRON-POSITRON INTERACTIONS
J PSI-3097 MESONS
MULTIPARTICLE SPECTROMETERS
PAIR PRODUCTION
PARTICLE IDENTIFICATION
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
RESONANCE PARTICLES
REST MASS
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Summary:In two recent reactions by Belle producing DD-bar and DD-bar* meson pairs, peaks above threshold have been measured in the differential cross sections, possibly indicating new resonances in these channels. We want to study such reactions from the point of view that the D meson pairs are produced from already known or predicted resonances below threshold. Our study shows that the peak in the DD-bar* production is not likely to be caused by the X(3872) resonance, but the peak seen in DD-bar invariant mass can be well described if the DD-bar pair comes from the already predicted scalar X(3700) resonance.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.2973528