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Título: | Three methods to detect the predicted D(D)over-bar scalar meson X(3700) |
Autor: | Xiao, C. W.; Oset, Eulogi CSIC ORCID | Palabras clave: | Chiral perturbation theory Scattering |
Fecha de publicación: | 1-abr-2013 | Editor: | Springer Nature | Citación: | EUROPEAN PHYSICAL JOURNAL A (49): 4 (2013) | Resumen: | In analogy to the f(0)(500), which appears as a pi pi resonance in chiral unitary theory, and the f(0)(980), which appears as a quasibound K (K) over bar state, the extension of this approach to the charm sector also predicts a quasibound D (D) over bar state with mass around 3720 MeV, named as X(3700), for which some experimental support is seen in the e(+)e(-) -> J/psi D (D) over bar reaction close to the D (D) over bar threshold. In the present work we propose three different experiments to observe it as a clear peak. The first one is the radiative decay of the psi(3770), psi(3770) -> gamma X(3700) -> gamma eta eta'. The second one proposes the analogous reaction psi(4040) -> gamma X(3700) -> gamma eta eta' and the third reaction is the e(+)e(-) -> J/psi X(3700) -> J/psi eta eta'. Neat peaks are predicted for all the reactions and the calculated rates are found within measurable range in present facilities. | Versión del editor: | http://dx.doi.org/10.1140/epja/i2013-13052-5 | URI: | http://hdl.handle.net/10261/108583 | DOI: | 10.1140/epja/i2013-13052-5 | ISSN: | 1434-6001 |
Aparece en las colecciones: | (IFIC) Artículos |
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Three methods.pdf | 144,85 kB | Adobe PDF | Visualizar/Abrir |
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