Interactions of Baryons in a Relativistic Composite Model
Author(s) -
T. Teshima,
Isao Umemura
Publication year - 1972
Publication title -
progress of theoretical physics
Language(s) - English
Resource type - Journals
eISSN - 1347-4081
pISSN - 0033-068X
DOI - 10.1143/ptp.48.2358
Subject(s) - physics , amplitude , baryon , coupling constant , branching fraction , coupling (piping) , symmetry (geometry) , constant (computer programming) , quantum electrodynamics , particle physics , nuclear physics , quantum mechanics , mechanical engineering , geometry , mathematics , computer science , engineering , programming language
The interactions of baryons and their resonances are investigated on the basis of a relativistic composite model in terms of the B-S amplitudes. By imposing appropriate con ditions, the B-S amplitudes are constructed, which are different from those obtained by a method of SU(6) or U(12) symmetry. This difference may be attributed partially to the effects of interactions and relative motion of urbaryons. From the analysis of various inter actions, it is shown that these effects are absorbed in a simplified form of B-S amplitudes as if they were small. The absolute values of magnetic moments, NN1r coupling constant and N* N1r coupling constant are calculated in good agreement with experiment. The experimental branching ratios of P-decay are also reproduced by our approach.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom