1999/03/01 by E. Tomasi‐Gustafsson, E. Tomasi-Gustafsson, M.P. Rekalo +4 · 1 citation
Physics and Astronomy · #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #Quantum, superfluid, helium dynamics #hep-ph #nucl-th
paper · pdf · doi:10.1103/physrevc.59.1526
published as Phys.Rev. C59 (1999) 1526-1533 · 12 pages, 10 figures
openalex publication_date 1999/03/01 · arxiv created 1999/11/09 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30
The tensor analyzing power of the process d+\stackrel\ensuremath→pd+X, for forward deuteron scattering in the momentum interval 3.7 to 9 GeV/c, is studied in the framework of \ensuremathω exchange in an algebraic collective model for the electroexcitation of nucleon resonances. We point out a special sensitivity of the tensor analyzing power to the isoscalar longitudinal form factor of the Roper resonance excitation. The main argument is that the S11(1535),D13(1520), and S11(1650) resonances have only isovector longitudinal form factors. It is the longitudinal form factor of the Roper excitation, which plays an important role in the t dependence of the tensor analyzing power. We discuss possible evidence of swelling of hadrons with increasing excitation energy.