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Similar ideas can be probed in events with a leading neutron in the final state. If this process is mediated by one-pion exchange, then PDFs can also be extracted and used to predict rate for other processes. In the following 11, the production of leading neutrons has been measured and compared, amongst other things, to models of one-pion exchange. The p$ distribution of the neutron has been measured and the slope of the distribution parametrised as e-bp$. The value of b is plotted against the fraction of the beam’s energy carried by the neutron, l c ~ in , Fig.

Nucl. Phys. , S. , Eur. Phys. J. C 38 (2004) 43; 11. M. Soares, these proceedings. 12. T. Matsumoto, these proceedings. 13. T. Namsoo, these proceedings. 14. , S. , Nucl. Phys. B 729 (2005) 492. RECENT RESULTS FROM THE TEVATRON C . ROYON DAPNIA/Service de physique des particules, CEA/Saclay, 91 191 Gif-sur- Yvette cedex, France We give the most recent results from the DQ, and CDF experiments at the Tevatron. The luminosity accumulated by the DO and CDF experiments and used for many analyses shown in this report is of the order of 1 ft-' per experiment and the efficiency of data taking is above 90% for both experiments.

B 638 (2006) 119. RESULTS FROM THE COMPASS EXPERIMENT AT CERN FABIENNE KUNNE DAPNIA SPhN, CEA Saclay F91191 Gif-sur-Yvette,France On behalf of the COMPASS collaboration COMPASS has accumulated so far 3 years of data, using the 160 GeV polarized muon beam from CERN and a polarized deuterium target to study the spin structure of the nucleon. 055 is compatible with zero. Two other determinations are also shown, one using data at Q2>1, and the other, data from the production of charmed Do mesons. New data on the spin structure function gl and results from a NLO QCD global analysis are presented A measurement of the Collins asymmetry on deuterium, linked to the transversely polarized parton distributions, is shown.

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Deep Inelastic Scattering [Procs of 14th Int'l Wkshp 2006] by M. Kuze, et al.,

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