Determination of the masses and decay widths of the scalar-isoscalar and vector-isovector mesons below $2$ GeV

Abstract

This study revisits the issue of the extraction of estimates for the masses and for the partial decay widths to two pions of the scalar-isoscalar I G (J P C ) = 0 + (0 ++ ) and vector-isovector I G (J P C ) = 1 + (1 −− ) mesons below 2 GeV, from the data contained in the recent compilation by the Particle Data Group.

Determination of the masses and decay widths of the well-established $s$ and $p$ baryon resonances below $2$ GeV

“…The results of an analysis of the available data, as they appear in the recent compilation [3] by the Particle Data Group (PDG), can be found in Ref. [4]. This work can be thought of as a continuation of the analysis performed in Ref.…”

“…This work can be thought of as a continuation of the analysis performed in Ref. [4]. The goal here is the extraction from the data, listed in Ref.…”

“…Given that the application of the methodology of Ref. [4] in case of the scalar-isoscalar and vector-isovector mesons resulted in occasional departures from the recommended values by the PDG, it seemed prudent to pursue the extraction of estimates for the relevant physical properties of the HBRs. This paper will be kept as short as possible.…”

“…Given that the method was described in Section 2 of Ref. [4], the reader is referred to that paper for all details regarding the statistical analysis of the data; as Ref. [4] is publicly available, there is no need to repeat in this paper any of the material contained therein.…”

“…[4], the reader is referred to that paper for all details regarding the statistical analysis of the data; as Ref. [4] is publicly available, there is no need to repeat in this paper any of the material contained therein. Consequently, three sections suffice for the purposes of this work.…”