2012/08/31 by Fei Huang, F. Huang, H. Haberzettl +1
Mathematics · Physics and Astronomy · #Algorithm #Computer science #Energy (signal processing) #Hadron #Machine learning #Mathematics #Nuclear physics research studies #Particle physics #Particle physics theoretical and experimental studies #Physics #Production (economics) #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Resonance (particle physics) #hep-ph #nucl-ex #nucl-th
paper · pdf · doi:10.1103/physrevc.87.054004
published as Phys.Rev.C87:054004,2013 · revtex4-1, 2 columns, 22 pages, 17 figures; final version published in PRC
openalex publication_date 2013/05/20 · arxiv created 2013/05/21 · arxiv updated 2015/03/20 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The production of \ensuremathη^\ensuremath' mesons in photon- and hadron-induced reactions has been revisited in view of the recent additions of high-precision data to the world data base. Based on an effective Lagrangian approach, we performed a combined analysis of the free and quasifree \ensuremathγN\ensuremath→\ensuremathη^\ensuremath'N, NN\ensuremath→NN\ensuremathη^\ensuremath', and \ensuremathπN\ensuremath→\ensuremathη^\ensuremath'N reactions. Considering spin-(1)/(2) and -(3)/(2) resonances, we found that a set of above-threshold resonances S11, P11, P13, with fitted mass values of about MR=1925, 2130, and 2050 MeV, respectively, and the four-star subthreshold P13(1720) resonance reproduce best all existing data for the \ensuremathη^\ensuremath' production processes in the resonance-energy region considered in this work. All three above-threshold resonances found in the present analysis are essential and indispensable for the good quality of the present fits.