Spin dependent parton densities

Indumathi, D. ; Murthy, M. V. N. ; Gupta, Sourendu (1990) Spin dependent parton densities Zeitschrift fur Physik. C, Particles and Fields, 47 (2). pp. 227-233. ISSN 0170-9739

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Official URL: http://www.springerlink.com/content/p88060uv606097...

Related URL: http://dx.doi.org/10.1007/BF01552343


We propose a set of polarised-beam polarised target experiments to determine the complete set of spin dependent parton densities. The polarised valence quark densities are determined through semi-inclusive hadro-production in polarised muon-proton collisions. This, together with present data then fixes the polarised sea quark densities. Polarised gluon densities are measurable through asymmetries in large,pT direct photon production in polarised p-p collisions. An independent measurement of polarised sea quark densities comes from direct double photon production in polarised p-p collisions at rapidities close to zero. We illustrate these results with numerical estimates.

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