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Proceedings to the Workshops ''What comes beyond the Standard model'' 2000,2001, VOLUME 1: Festschrift dedicated to the 60th birthday of Holger Bech Nielsen
N. S. Mankoc Borstnik, C. D. Froggatt, D. Lukman +15
The present volume is the collection of contributions by friends of Holger Bech Nielsen for his 60th birthday. Contents: 1.Unified internal space of spins and charges (N. Mankoc Bo…
The pion form factor at timelike momentum transfers in a dispersion approach
D. Melikhov, O. Nachtmann, T. Paulus
We consider a model with , , and gauge-invariant couplings and obtain the pion form factor at timelike momentum transfers by resummation of pion and kaon loops…
Weak form factors for heavy meson decays
Dmitri Melikhov, Berthold Stech
We calculate the form factors for weak decays of and mesons to light pseudoscalar and vector mesons within a relativistic dispersion approach based on the const…
Dispersion Quark Model of Heavy Meson Decays
Dmitri Melikhov
We discuss applications of the dispersion quark model to exclusive semileptonic decays of heavy mesons. The transition form factors in this relativistic formulation of the quark mo…
Long-distance contribution to exclusive rare decays of heavy mesons in quark model
Dmitri Melikhov
Nonperturbative effects in exclusive reactions are discussed. Form factors which describe the main long-distance contribution to the meson transition amplitude are…
Form factors of meson decays in constituent quark model
D. Melikhov
Meson decays are considered within the constituent quark model, making use of the dispersion formulation of the model: Starting with spacelike momentum transfers , meson transit…