2007/08/15 by M. Bashkanov, D. Bogoslawsky, H. Calén +49
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #nucl-ex
paper · pdf · doi:10.1103/physrevc.76.048201
published as Phys.Rev.C76:048201,2007 · 4 pages, 7 Postscript figures, uses revtex4.sty
arxiv created 2007/08/15 · openalex publication_date 2007/10/03 · arxiv updated 2009/12/01 · openalex created_date 2016/10/07 · openalex updated_date 2026/07/28
The CELSIUS-WASA setup is used to measure the 3\ensuremathπ0 decay of \ensuremathη mesons produced in pp interactions with beam kinetic energies of 1.36 and 1.45 GeV. The efficiency-corrected Dalitz plot and density distributions for this decay are shown, together with a fit of the quadratic slope parameter \ensuremathα yielding \ensuremathα=\ensuremath-0.026\ifmmode±\else\textpm\fi0.010(stat)\ifmmode±\else\textpm\fi0.010(syst). This value is compared to recent experimental results and theoretical predictions.