2008/04/08 by N. Sparveris, N. F. Sparveris, P. Achenbach +34
Physics and Astronomy · #Nuclear physics research studies #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #nucl-ex
paper · pdf · doi:10.1103/physrevc.78.018201
published as Phys.Rev.C78:018201,2008 · 4 pages, 4 figures
arxiv created 2008/04/08 · openalex publication_date 2008/07/21 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30
We report on new H(e,e'p)\ensuremathγ measurements in the \ensuremathΔ(1232) resonance at Q2=0.06 (GeV/c)2 carried out simultaneously with H(e,e'p)\ensuremathπ0. It is the lowest Q2 for which the virtual Compton scattering (VCS) reaction has been studied in the first resonance region. The VCS measured cross sections are well described by dispersion-relation calculations in which the multipole amplitudes derived from H(e,e'p)\ensuremathπ0 data are used as input, thus confirming the compatibility of the results. The derived resonant magnetic dipole amplitude M1+3/2=(40.60\ifmmode±\else\textpm\fi0.70stat+sys)(10^\ensuremath-3/m_\ensuremathπ+) at W=1232 MeV is in excellent agreement with the value extracted from H(e,e'p)\ensuremathπ0 measurements.