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16 papers · 2 filters
Scalar and Tensor Force Contribution to the Nucleon-Nucleon Interaction Within a Chiral Constituent Quark Model
D. Bartz
The nucleon-nucleon problem is studied as a six-quark system in a nonrelativistic chiral constituent quark model where the Hamiltonian contains a linear confinement and a pseudosca…
Pion Structure Function and Violation of the Momentum Sum Rule
J. P. Lansberg, F. Bissey, J. R. Cudell +3
We present a method to evaluate the pion structure functions from a box diagram calculation. Pion and constituent quark fields are coupled through the simplest pseudoscalar couplin…
Consequences of t-channel unitarity for the interaction of real and virtual photons at high energies
E. Martynov, J. R. Cudell, G. Soyez
We analyze the consequences of t-channel unitarity for photon cross sections and show what assumptions are necessary to allow for the existence of new singularities at …
The Nucleon-Nucleon Problem in Quark Models
Fl. Stancu
In the first part we summarize the status of the nucleon-nucleon (NN) problem in the context of Hamiltonian based constituent quark models and present results for the l=0 phase shi…
Vector Meson Photoproduction in the Soft Dipole Pomeron Model Framework
A. Prokudin, E. Martynov, E. Predazzi
Exclusive photoproduction of all vector mesons by real and virtual photons is considered in the Soft Dipole Pomeron model. It is emphasized that being the Pomeron in this model a d…
DGLAP evolution extends the triple pole pomeron fit
G. Soyez
We show that the triple pole pomeron model \cite{CMS} provides an initial condition for a DGLAP evolution \cite{DGLAP} that produces a fit to high experimental DIS data. We o…