arXiv subjects

Diego Bettoni

Publications and source records attributed to Diego Bettoni.

3 recordsLinked to original sources

arXiv2021

A possible simultaneous fit to the available $e^+e^- \rightarrow Λ^+_c \barΛ^-_c$ cross section data nearby $ψ(4660)$ by means of a strong correction to the Coulomb enhancement factor

There are two available set of data on the $e^+e^- \rightarrow Λ^+_c \barΛ_c^-$ cross section above threshold. The BELLE measurement, with ISR return, is compatible with the presence of a resonant state, called $ψ(4660)$ (formerly known as $Y(4660)$), observed also in other final states. The BESIII dataset has shown a different trend, with a flat cross section. We propose a new solution to fit both datasets by means of a strong correction to the Coulomb enhancement factor. Mass and width of the resonant state is extracted.

hep-ph↗

arXiv2015

Resonances in QCD

We report on the EMMI Rapid Reaction Task Force meeting 'Resonances in QCD', which took place at GSI October 12-14, 2015. A group of 26 people met to discuss the physics of resonances in QCD. The aim of the meeting was defined by the following three key questions: What is needed to understand the physics of resonances in QCD? Where does QCD lead us to expect resonances with exotic quantum numbers? What experimental efforts are required to arrive at a coherent picture? For light mesons and baryons only those with ${\it up}$, ${\it down}$ and ${\it strange}$ quark content were considered. For heavy-light and heavy-heavy meson systems, those with ${\it charm}$ quarks were the focus. This document summarizes the discussions by the participants, which in turn led to the coherent conclusions we present here.

hep-ph↗

arXiv2007

The PANDA Experiment at FAIR

The physics program of the future FAIR facility covers a wide range of topics that address central issues of strong interactions and QCD. The antiproton beam of unprecedented quality in the momentum range from 1 GeV/c to 15 GeV/c will allow the PANDA experiment to make high precision, high statistics measurements, which include charmonium and open charm spectroscopy, the search for exotic hadrons and the study of in-medium modifications of hadron masses.

hep-ex↗