Azimuthal single-spin asymmetries in semi-inclusive electro-production of pions and charged kaons are investigated at the HERMES experiment. Non-zero amplitudes for both the Collins and the Sivers mechanisms were extracted from the full data set collected with a transversely polarised target. For the first time a 2-dim extraction on x, z and Ph⊥ of the Collins and Sivers amplitudes for charged pions is reported.
Single-spin asymmetries in SIDIS off transversely polarized protons at HERMES
PAPPALARDO, Luciano Libero
2009
Abstract
Azimuthal single-spin asymmetries in semi-inclusive electro-production of pions and charged kaons are investigated at the HERMES experiment. Non-zero amplitudes for both the Collins and the Sivers mechanisms were extracted from the full data set collected with a transversely polarised target. For the first time a 2-dim extraction on x, z and Ph⊥ of the Collins and Sivers amplitudes for charged pions is reported.File in questo prodotto:
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