2004/05/31 by A. Sibirtsev, J. Haidenbauer, S. Krewald +1 · 61 citations
Mathematics · Physics and Astronomy · #Algorithm #Fermi Gamma-ray Space Telescope #Limit (mathematics) #Mathematical analysis #Mathematics #Nuclear physics #Nuclear physics research studies #Nucleon #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #hep-ex #hep-ph #nucl-ex #nucl-th
paper · pdf · doi:10.1016/j.physletb.2004.08.035
published in Physics Letters B 599(3-4), 230-235 (Elsevier BV) · 5 pages, 5 figures, updated version, accepted for publication in Phys. Lett. B
arxiv created 2004/08/19 · openalex publication_date 2004/08/31 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We investigate the impact of the Θ+(1540) resonance on differential and integrated cross sections for the reaction K+d→K0pp, where experimental information is available at kaon momenta below 640MeV/c. The calculation utilizes the Jülich KN model and extensions of it that include contributions from a Θ+(1540) state with different widths. The evaluation of the reaction K+d→K0pp takes into account effects due to the Fermi motion of the nucleons within the deuteron and the final three-body kinematics. We conclude that the available data constrain the width of the Θ+(1540) to be less than 1 MeV.