Abstract
We present a fit to spin asymmetries which gives polarized quark distributions. These functions are closely related to the ones given by the Martin, Roberts and Stirling fit for unpolarized structure functions. The integrals of polarized distributions are discussed and compared with the corresponding quantities obtained from neutron and hyperonβ-decay data. We use the combination of proton, neutron and deuteron spin asymmetries in order to determine the coefficients of our polarized quark distributions. Our fit shows that phenomenologically there is no need for taking polarized gluons into account.
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Work supported in part by the KBN-Grant 2-P302-143-06
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Bartelski, J., Tatur, S. Phenomenological determination of polarized quark distributions in the nucleon. Z. Phys. C - Particles and Fields 71, 595–599 (1996). https://doi.org/10.1007/BF02907020
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DOI: https://doi.org/10.1007/BF02907020