12 papers
The structure of the nucleon: baryons and pentaquarks
Roelof Bijker
In these lecture notes I discuss an algebraic model of baryons and pentaquarks, in particular a stringlike collective model is considered in which the radial excitations of baryons…
Geometrical analysis of the algebraic cluster model
R. Bijker
Three-body clusters are studied in the algebraic cluster model. Particular attention is paid to the case of three identical particles. It is shown in a geometrical analysis that th…
Ground state angular momenta of random nuclei
R. Bijker, A. Frank
We investigate the phenomenom of emerging regular spectral features from random interactions. In particular, we address the dominance of L=0 ground states in the context of the vib…
Playing Dice with Nuclei: Pattern out of Randomness?
R. Bijker, A. Frank
We review recent results obtained in numerical studies of the nuclear shell model and the interacting boson model with random interactions, in particular the dominance of ground st…
Exactly solvable models of baryon structure
R. Bijker, A. Leviatan
We present a qualitative analysis of the gross features of baryon spectroscopy (masses and form factors) in terms of various exactly solvable models. It is shown that a collective…
Interacting boson models of nuclear and nucleon structure
R. Bijker, A. Leviatan
Interacting boson models provide an elegant and powerful method to describe collective excitations of complex systems by introducing a set of effective degrees of freedom. We revie…