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Inflationary Brans-Dicke Quantum Universe II: Particular evolutions and stability analysis
B. Geyer, V. F. Kovalev
We made an analysis of the equations of motion which are obtained from the one - loop effective action for Brans-Dicke gravity with N dilaton - coupled massless fermions in a time-…
Twist-2 Light-Ray Operators: Anomalous Dimensions and Evolution Equations
J. Blümlein, B. Geyer, D. Robaschik
The non-singlet and singlet anomalous dimensions of the twist--2 light-ray operators for unpolarized and polarized deep inelastic scattering are calculated in . We apply th…
The evolution of the nonsinglet twist-3 parton distribution function
B. Geyer, D. Müller, D. Robaschik
The twist three contributions to the -evolution of the spin-dependent structure function are considered in the non-local operator product approach. Defining…
Light-Ray Operators and their Application in QCD
B. Geyer, D. Müller, D. Robaschik
The nonperturbative parton distribution and wave functions are directly related to matrix elements of light-ray (nonlocal) operators. These operators are generalizations of the sta…