| Issue |
EPJ Web of Conferences
Volume 85, 2015
4th International Workshop on Transverse Polarisation Phenomena in Hard Processes (TRANSVERSITY 2014)
|
|
|---|---|---|
| Article Number | 02020 | |
| Number of page(s) | 5 | |
| Section | Research talks | |
| DOI | https://doi.org/10.1051/epjconf/20158502020 | |
| Published online | 23 January 2015 | |
https://doi.org/10.1051/epjconf/20158502020
Recent HERMES results from inclusive and semi-inclusive hadron production
University of the Basque Country – UPV/EHU, Spain
e-mail: cvhulse@mail.desy.de
Published online: 23 January 2015
Hermes collected a wealth of data using the 27.6 GeV polarized Hera lepton beam and various pure, polarized and unpolarized, gaseous targets. This unique data set opens the door to various measurements sensitive to the multi-dimensional structure of the nucleon. Among them are two-hadron production in semi-inclusive deep-inelastic scattering on a transversely polarized target, providing access to different transverse-momentum-dependent distribution and fragmentation functions in a way complementary to single-hadron production. Also transverse-target single-spin asymmetries in inclusive electroproduction of charged pions and kaons have been recently extracted, complementing data from proton-proton collisions, where large, so far unexplained, asymmetries have been observed. From inclusive measurements on various nuclear targets, the Λ polarization is extracted, also here complementing measurements in proton-proton collisions.
© Owned by the authors, published by EDP Sciences, 2015
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