v 1 1 8 Ju l 2 00 5 DOC - 2004 - Jan - 152 A Study of Spin - dependent Interactions with Antiprotons The Structure of The Nucleon ASSIA
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ar X iv : n uc l - ex / 0 50 70 21 v 1 1 4 Ju l 2 00 5 Latest Results on g 1 and g 2 at high x Jian - ping
Recent progress from Jefferson Lab has significantly improved our understanding of the nucleon spin structure in the high-x region. Results of a precision measurement of the neutron spin asymmetry, A1, in the high-x (valence quark) region are discussed. The up and down quark spin distributions in the nucleon were extracted. A2 was also measured. The results were used, in combination with existi...
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A polarized antiproton beam at the Facility for Antiproton and Ion Research, proposed by the PAX collaboration, will open a window to new physics uniquely accessible at the new High Energy Storage Ring. Our proposal to realize an asymmetric collider, in which polarized protons with momenta of about 3.5 GeV/c collide with polarized antiprotons with momenta up to 15 GeV/c, is well–suited to perfo...
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The EDELWEISS collaboration is searching for WIMP dark matter using natural Ge cryogenic detectors. The whole data set of the first phase of the experiment contains 4.8 kg.day of data on Ge, the naturally present (7.8%), high-spin Ge isotope. The sensitivity of the experiment to the spin-dependent WIMP-nucleon interactions is evaluated using the model-independent framework proposed by Tovey et ...
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متن کاملar X iv : h ep - p h / 03 10 36 3 v 2 2 3 Ju l 2 00 4 1 On two weak CC ∆ production models Jan
We perform a detail analysis of two models of neutrino CC ∆ production on free nucleons. First model is a standard one based on nucleon-Delta transition current with several form-factors. Second model is a starting point for a construction of Marteau model with sophisticated analytical computations of nuclear effects. We conclude that both models lead to similar results. PACS numbers: 13.15+g, ...
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تاریخ انتشار 2005