6 papers
Spontaneously Broken Chiral Symmetry and Hard QCD Phenomena
M. J. Amarian, V. M. Braun, S. J. Brodsky +28
These are the mini-proceedings of the workshop ``Spontaneously Broken Chiral Symmetry and Hard QCD Phenomena" held at the Physikzentrum Bad Honnef from July 15 to 19, 2002. Every a…
Higher-twist contributions in exclusive processes
M. Vänttinen, L. Mankiewicz, E. Stein
Using the renormalon technique, we estimate higher-twist contributions in deeply virtual Compton scattering and in hard exclusive leptoproduction.
Analytic Approximation to the GLAP evolution of in the small- region
L. Mankiewicz, A. Saalfeld, T. Weigl
We propose a systematic approximation scheme for solving GLAP evolution equations at small Bjorken-. The approximate solutions interpolate smoothly between hard (singular as $x^…
Sphinx v1.1 - Monte Carlo Program for Polarized Nucleon-Nucleon Collisions (update)
Stefan Güllenstern, Oliver Martin, Pawel Gornicki +2
We present the updated long write-up for version 1.1 of the SPHINX Monte Carlo. The program can be used to simulate polarized nucleon - nucleon collisions at high energies. Spins o…
Small behaviour of the chirally-odd parton distribution
R. Kirschner, L. Mankiewicz, A. Schäfer +1
The small behaviour of the structure function is studied within the leading logarithmic approximation of perturbative QCD. There are two contributions relevant at…
Dependence of the Bjorken Sum Rule
Lech Mankiewicz, Eckart Stein, Andreas Schäfer
We discuss various estimates of the magnitude of higher-twist corrections to the Bjorken sum rule in polarized deep inelastic scattering.