A very broad X4260 and the resonance parameters of the 3D vector charmonium state - High Energy Physics - PhenomenologyReport as inadecuate




A very broad X4260 and the resonance parameters of the 3D vector charmonium state - High Energy Physics - Phenomenology - Download this document for free, or read online. Document in PDF available to download.

Abstract: We argue that the X4260 enhancement contains a wealth of information onvector c-cbar spectroscopy. We discuss the shape of the X4260 observed in theOZI-forbidden process -electron-positron into J-psi and a pair of chargedpions-, in particular at and near vector charmonium resonances as well asopen-charm threshold enhancements. The resulting very broad X4260 structuredoes not seem to classify itself as a vector charmonium resonance, but itsdetailed shape allows to identify new vector c-cbar states. Here, we estimatethe resonance parameters of the psi3D state.



Author: Eef van Beveren, George Rupp, J. Segovia

Source: https://arxiv.org/







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