Journal article

Publication year: 2006

Pages: 53-94

Journal: Nuclear Physics A: Nuclear and Hadronic Physics

Volume number: 778

Issue number: 1-2

ISSN: 0375-9474

eISSN: 1873-1554

Open access status: Green

DOI Link: https://doi.org/10.1016/j.nuclphysa.2006.07.039

Publisher: Elsevier

Abstract: 
A relativistic description of spin 3/2 resonances and their decay channels is presented by calculating their selfenergies and spectral functions. The full vector-spinor structure is taken into account. Special emphasis is put on the N*(1520) and its decay channels pi N, rho N and pi Delta. All interactions are formulated such that the number of degrees of freedom of a spin 3/2 state remains the same for the free and the interacting theory. The obtained results are compared with several approximations frequently used to avoid the complicated vector-spinor structure. Since this structure is taken fully into account here, the quality of the approximations can be judged. (c) 2006 Elsevier B.V. All rights reserved.

Harvard Citation style: Jahnke, L. and Leupold, S. (2006) Relativistic description of the N*(1520), Nuclear Physics A: Nuclear and Hadronic Physics, 778(1-2), pp. 53-94. https://doi.org/10.1016/j.nuclphysa.2006.07.039

APA Citation style: Jahnke, L., & Leupold, S. (2006). Relativistic description of the N*(1520). Nuclear Physics A: Nuclear and Hadronic Physics. 778(1-2), 53-94. https://doi.org/10.1016/j.nuclphysa.2006.07.039