85 citations · 228 across the 8 of their papers we have counts for
8 papers · 1 filter
Isovector and hidden-beauty partners of the X(3872)
Hallstein Hogaasen, Emi Kou, Jean-Marc Richard +1
The isovector partners of the X(3872), recently found at BES III, Belle and CLEO-c were predicted in a simple model based on the chromomagnetic interaction among quarks (H. Hogaase…
On Quarks and Flavour Symmetry
H. Hogaasen, Paul Sorba
Hadronic spectroscopy can be introduced to students and developed rather far without requiring SU(N) flavour symmetry. In such a "minimalist" presentation, we are naturally led to…
Chromomagnetism, flavour symmetry breaking and S-wave tetraquarks
Franco Buccella, Hallstein Hogaasen, Jean-Marc Richard +1
The chromomagnetic interaction, with full account for flavour-symmetry breaking, is applied to S-wave configurations containing two quarks and two antiquarks. Phenomenological impl…
A chromomagnetic mechanism for the X(3872) resonance
H. Hogaasen, J. M. Richard, P. Sorba
The chromomagnetic interaction, with proper account for flavour-symmetry breaking, is shown to explain the mass and coupling properties of the X(3872) resonance as a = 1$^…
Quark-quark correlations and baryon electroweak observables
H. Hogaasen, K. Kubodera, F. Myhrer
The simple independent quark models have difficulties explaining simultaneously the totality of the known hyperon magnetic moments and hyperon semi-leptonic decay rates. We show th…
Strong and electromagnetic decays for excited heavy mesons
Aksel Hiorth Orsland, H. Hogaasen
We discuss a model for heavy mesons where the light quark (u or d) moves in the colour electric field from a heavy quark (c or b) placed in the center of the bag. We calculate ener…
The proton spin sum rule chiral bag prediction, an update
H. Høgaasen, F. Myhrer
We reevaluate a quark model prediction using the new QCD evolution function calculated to the 3 loop order and conclude that this model compares favorably with the new experimental…
Isgur - Wise Functions for Confined Light Quarks in a Colour Electric Potential
H. Hogaasen, M. Sadzikowski
We explore the influence on the Isgur-Wise function of the colour electric potential between heavy and light quarks in mesons. It is shown that in bag models, its inclusion tends t…