6 papers
Is there screwiness at the end of the QCD cascades?
B. Andersson, G. Gustafson, J. Hakkinen +2
We discuss what happens at the end of the QCD cascades. We show that, with just a few reasonable assumptions, the emission of soft gluons is constrained to produce an ordered field…
Local Routing Algorithms Based on Potts Neural Networks
J. Häkkinen, M. Lagerholm, C. Peterson +1
A feedback neural approach to static communication routing in asymmetric networks is presented, where a mean field formulation of the Bellman-Ford method for the single unicast pro…
Bose-Einstein and Colour Interference in W-pair Decays
Jari Häkkinen, Markus Ringner
We study effects on the W mass measurements at LEP2 from non-perturbative interference effects in the fully hadronic decay channel. Based on a model for Bose-Einstein interference,…
A Potts Neuron Approach to Communication Routing
J. Häkkinen, M. Lagerholm, C. Peterson +1
A feedback neural network approach to communication routing problems is developed with emphasis on Multiple Shortest Path problems, with several requests for transmissions between…
Colour connections in e+e- -annihilation
C. Friberg, G. Gustafson, J. Häkkinen
We have a very limited knowledge about how the confinement mechanism works in processes like $\epea\epe\ra\epq\epqa\ggn\ldots\ggn$, when there are identical colour charges. In this…
Colour: A Computer Program for QCD Colour Factor Calculations
Jari Hakkinen, Hamid Kharraziha
A computer program for evaluating colour factors of QCD Feynman diagrams is presented, and illustrative examples on how to use the program to calculate non trivial colour factors a…