1. The SMC Experiment: New Data on the Deuteron from the 1994 Run
- Author
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Baum, Günter, Boffi, Sigfrido, Ciofi Degli Atti, Claudio, and Giannini, Mauro
- Subjects
deuteron: polarized target ,polarized target: deuteron ,Nuclear Theory ,sum rule: Bjorken ,deep inelastic scattering: muon+ p ,FOS: Physical sciences ,structure function: spin ,muon+ deuteron: deep inelastic scattering ,spin: nucleon ,High Energy Physics - Experiment ,x-dependence ,asymmetry: polarization ,quark: valence | polarization: asymmetry ,High Energy Physics - Experiment (hep-ex) ,High Energy Physics - Phenomenology (hep-ph) ,hadron: multiple production ,100: 190 GeV/c ,Nuclear Experiment ,polarized beam: muon ,moment: structure function ,spin: structure function ,deep inelastic scattering: muon+ deuteron ,nucleon: structure function ,talk: Trieste 1995/05/08 ,CERN SPS ,quark: spin ,magnetic spectrometer: experimental results ,High Energy Physics - Phenomenology ,muon+ p: deep inelastic scattering ,multiple production: hadron ,nucleon: spin ,High Energy Physics::Experiment ,muon: polarized beam ,Particle Physics - Experiment ,spin: quark - Abstract
An overview of the SMC data taking and the polarized deep inelastic scattering experiment is given. The new data on the deuteron extend the kinematic range and have considerably reduced statistical and systematic errors. The evaluation of the first moment of the spin dependent structure function is presented and the result for the Bjorken sum rule from SMC data alone is given. The spin contribution of the quarks to the spin of the nucleon is obtained with information from weak decays of baryons. In a new polarized semi-inclusive analysis the asymmetry of the difference between the number of positive and negative charged hadrons was studied. Preliminary results are shown., Comment: 14 pages including 8 figures, uuencoded gz-compressed ps-file, to be published in the Proceedings of the Seventh Conference on Perspectives in Nuclear Physics at Intermediate Energies, ICTP Trieste on 8-12 May 1995
- Published
- 1995
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