2003/10/31 by The BABAR Collaboration, R. Barate, B. Aubert +98 · 6 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex
paper · pdf · doi:10.1103/physrevd.69.031101
published as Phys.Rev.D69:031101,2004 · 7 pages, 3 postscript figures, submitted to PRD-Rapid Communications
arxiv created 2004/01/19 · openalex publication_date 2004/02/25 · arxiv updated 2009/12/01 · openalex created_date 2020/05/13 · openalex updated_date 2026/08/04
A narrow state, which we label DsJ(2458)+, with a mass 2458.0\ifmmode±\else\textpm\fi1.0(stat)\ifmmode±\else\textpm\fi1.0(syst)MeV/c2, is observed in the inclusive Ds+\ensuremathπ0\ensuremathγ mass distribution in 91fb^\ensuremath-1 of e+e^\ensuremath- annihilation data recorded by the BABAR detector at the SLAC PEP-II asymmetric-energy e+e^\ensuremath- storage ring. The observed width is consistent with the experimental resolution. The data favor decay through Ds*(2112)+\ensuremathπ0 rather than through DsJ*(2317)+\ensuremathγ. An analysis of Ds+\ensuremathπ0 data accounting for the influence of the DsJ(2458)+ produces a DsJ*(2317)+ mass of 2317.3\ifmmode±\else\textpm\fi0.4(stat)\ifmmode±\else\textpm\fi0.8(syst)MeV/c2.