Semi-inclusive π production – tests for independent fragmentation and for polarized quark densities
نویسندگان
چکیده
We show that measurements of semi-inclusive π asymmetries on p and n with polarized and unpolarized target and beams allow, without any knowledge of the polarized parton densities 1) to test independent fragmentation and SU(2) symmetry for the polarized sea, and 2) to determine separately the polarized strange and valence quarks densities, and the ratio of the fragmentation functions D +π s /D π+π u .
منابع مشابه
Semi-inclusive π scattering – tests for independent fragmentation and for polarized quark densities
We show that measurements of semi-inclusive π asymmetries on p and n with polarized and unpolarized target and beams allow, without any knowledge of the polarized parton densities 1) to test independent fragmentation and SU(2) symmetry for the polarized sea, and 2) to determine separately the polarized strange and valence quarks densities, and the ratio of the fragmentation functions D +π s /D ...
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