Journalartikel

Jahr der Veröffentlichung: 2006

Seiten: 313-337

Zeitschrift: Nuclear Physics A: Nuclear and Hadronic Physics

Bandnummer: 764

ISSN: 0375-9474

eISSN: 1873-1554

Open Access Status: Green

DOI Link: https://doi.org/10.1016/j.nuclphysa.2005.09.015

Verlag: Elsevier

Abstract: 
We investigate the A (p, K+)(Lambda)B reaction within a covariant two-nucleon model. We focus on amplitudes which are described by creation, propagation and decay into relevant channel of N*(1650), N* (1710), and N* (1720) intermediate baryonic resonance states in the initial collision of the projectile nucleon with one of its target counterparts. This collision is modeled by the exchange of pi as well as rho and omega mesons. The bound state nucleon and hyperon wave functions are obtained by solving the Dirac equation with appropriate scalar and vector potentials. Expressions for the reaction amplitudes are derived taking continuum particle wave functions in both distorted wave and plane wave approximations. Detailed numerical results are presented in the plane wave approximation; estimates of the effects of file initial and final state interactions are given in the eikonal approximation. Cross sections of 1-2 nb/sr at the peak positions, are obtained for favored transitions in case of heavier targets. (c) 2005 Elsevier B.V. All rights reserved.

Harvard-Zitierstil: Shyam, R., Lenske, H. and Mosel, U. (2006) A relativistic two-nucleon model for A(p, K+) ΛB reaction, Nuclear Physics A: Nuclear and Hadronic Physics, 764, pp. 313-337. https://doi.org/10.1016/j.nuclphysa.2005.09.015

APA-Zitierstil: Shyam, R., Lenske, H., & Mosel, U. (2006). A relativistic two-nucleon model for A(p, K+) ΛB reaction. Nuclear Physics A: Nuclear and Hadronic Physics. 764, 313-337. https://doi.org/10.1016/j.nuclphysa.2005.09.015