2004/02/29 by Seung-il Nam, S. I. Nam, Atsushi Hosaka +3 · 6 citations
Mathematics · Physics and Astronomy · #Combinatorics #Energy (signal processing) #Hadron #High-Energy Particle Collisions Research #Lambda #Mathematics #Parity (physics) #Particle physics #Particle physics theoretical and experimental studies #Pentaquark #Physics #Production (economics) #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Scattering #hep-ph #nucl-th
paper · pdf · doi:10.1103/physrevd.70.114027
published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 70(11) (American Physical Society) · 9 pages and 11 figures
arxiv created 2004/03/01 · openalex publication_date 2004/12/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We study np\ensuremath→\ensuremathΛ\ensuremathΘ+ and np\ensuremath→\ensuremathΣ0\ensuremathΘ+ processes for both of the positive and negative parities of the \ensuremathΘ+. Employing the effective chiral Lagrangians for the KNY and K*NY interactions, we calculate differential cross sections as well as total cross sections for the np\ensuremath→\ensuremathΣ0\ensuremathΘ+ and np\ensuremath→\ensuremathΛ\ensuremathΘ+ reactions. The total cross sections for the positive parity \ensuremathΘ+ turn out to be approximately 10 times larger than those for the negative parity \ensuremathΘ+ in the range of the c.m. energy Ec.m.th\ensuremath≤Ec.m.\ensuremath≤3.5 GeV. The results are rather sensitive to the parameters of K exchanges in the t channel.