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Test of the Universality of Naive-time-reversal-odd Fragmentation Functions

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arxiv 1008.3543 v1 pith:AFUZ7F2K submitted 2010-08-20 hep-ph

Test of the Universality of Naive-time-reversal-odd Fragmentation Functions

classification hep-ph
keywords fragmentationtestuniversalityfunctionsnaive-time-reversal-oddtransverseannihilationassociated
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We investigate the ''spontaneous'' hyperon transverse polarization in $e^+e^-$ annihilation and semi-inclusive deep inelastic scattering processes as a test of the universality of the naive-time-reversal-odd transverse momentum dependent fragmentation functions. We find that universality implies definite sign relations among various observables. This provides a unique opportunity to study initial/final state interaction effects in the fragmentation process and test the associated factorization.

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