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14 papers · 1 filter
The connection between single transverse spin asymmetries and the second moment of
B. Ehrnsperger, A. Schaefer, W. Greiner +1
We point out that the size of the photon single spin asymmetry in high--energy proton proton collisions with one transversely polarized proton can be related to , the twis…
Quenched and Negative Hall Effect in Periodic Media: Application to Antidot Superlattices
R. Fleischmann, T. Geisel, R. Ketzmerick
We find the counterintuitive result that electrons move in OPPOSITE direction to the free electron E x B - drift when subject to a two-dimensional periodic potential. We show that…
Wavelets as a variational basis of the XY model
C. Best, A. Schaefer
We use Daubechies' orthonormal compact wavelets as a variational basis for the model in two and three dimensions. Assuming that the fluctuations of the wavelet coefficients ar…
Self-Avoiding Gonihedric Srting and Spin Systems
G. K. Savvidy, K. G. Savvidy
We classify different theories of self-intersecting random surfaces assigning special weights to intersections. When self-intersection coupling constant tends to zero, then the…
OPE analysis for polarized deep inelastic scattering
B. Ehrnsperger, L. Mankiewicz, A. Schäfer
We present an explicit OPE analysis for the first moment of up to order . This result allows to calculate power corrections to the Bjorken and Ellis--Jaffe sum rules…
A bicombing that implies a sub-exponential isoperimetric inequality
Guenther Huck, Stephan Rosebrock
The idea of applying isoperimetric functions to group theory is due to M.Gromov. We introduce the concept of a ``bicombing of narrow shape'' which generalizes the usual notion of b…