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A polarised QCD condensate: nu p elastic scattering as a probe of U_A(1) dynamics
S. D. Bass
U_A(1) dynamics have the potential to induce a polarised condensate inside a nucleon. The formation of this condensate is related to the realisation of U_A(1) symmetry breaking by…
The Spin and Flavour Dependence of High-Energy Photoabsorption
S. D. Bass, M. M. Brisudova
We review the present data on high-energy, spin-dependent photoabsorption. We find a strong isotriplet term in which persists from GeV to high $Q^2…
The Drell-Hearn-Gerasimov Sum-Rule at Polarized HERA
S. D. Bass, M. M. Brisudova, A. De Roeck
We discuss the potential of polarized HERA to measure the spin dependent part of the total photoproduction cross-section at large .
The Drell-Hearn-Gerasimov Sum-Rule in QCD
S. D. Bass
Photoproduction spin sum-rules offer a new window on the spin structure of the nucleon that complements the information we can learn from polarised deep inelastic scattering experi…