@article{62251b1078f6489a88d424a516e5a3ed,
title = "Evidence for a transverse single-spin asymmetry in leptoproduction of π+π−pairs",
abstract = "A single-spin asymmetry was measured in the azimuthal distribution of π+π−pairs produced in semi-inclusive deep-inelastic scattering on a transversely polarized hydrogen target. For the first time, evidence is found for a correlation between the transverse target polarization and the azimuthal orientation of the plane containing the two pions. The corresponding single-spin asymmetry is expected to be related to the product of the little-known quark transversity distribution function and an unknown naive-T-odd chiralodd dihadron fragmentation function.",
keywords = "Lepton-nucleon scattering",
author = "{HERMES Collaboration} and A. Airapetian and N. Akopov and Z. Akopov and A. Andrus and Aschenauer, {E. C.} and W. Augustyniak and R. Avakian and A. Avetissian and E. Avetissian and A. Bacchetta and L. Barion and S. Belostotski and N. Bianchi and Blok, {H. P.} and H. B{\"o}ttcher and C. Bonomo and A. Borissov and A. Borysenko and A. Br{\"u}ll and V. Bryzgalov and M. Capiluppi and Capitani, {G. P.} and E. Cisbani and G. Ciullo and M. Contalbrigo and Dalpiaz, {P. F.} and W. Deconinck and {de Leo}, R. and M. Demey and {de Nardo}, L. and {de Sanctis}, E. and E. Devitsin and M. Diefenthaler and {Di Nezza}, P. and J. Dreschler and M. D{\"u}ren and M. Ehrenfried and A. Elalaoui-Moulay and G. Elbakian and F. Ellinghaus and U. Elschenbroich and R. Fabbri and A. Fantoni and L. Felawka and S. Frullani and A. Funel and G. Gapienko and V. Gapienko and Makins, {N. C.R.} and C. Riedl",
note = "Funding Information: We gratefully acknowledge the Desy management for its support and the staff at Desy and the collaborating institutions for their significant effort. This work was supported by the FWO-Flanders and IWT, Belgium; the Natural Sciences and Engineering Research Council of Canada; the National Natural Science Foundation of China; the Alexander von Humboldt Stiftung; the German Bundesministerium f?r Bildung und Forschung (BMBF); the Deutsche Forschungsgemeinschaft (DFG); the Italian Istituto Nazionale di Fisica Nucleare (INFN); the MEXT, JSPS, and COE21 of Japan; the Dutch Foundation for Fundamenteel Onderzoek der Materie (FOM); the U. K. Engineering and Physical Sciences Research Council, the Particle Physics and Astronomy Research Council and the Scottish Universities Physics Alliance; the U. S. Department of Energy (DOE) and the National Science Foundation (NSF); the Russian Academy of Science and the Russian Federal Agency for Science and Innovations; the Ministry of Trade and Economical Development and the Ministry of Education and Science of Armenia; and the European Community-Research Infrastructure Activity under the FP6 ?Structuring the European Research Area? program (Hadron Physics, contract number RII3-CT-2004-506078). Publisher Copyright: {\textcopyright} 2008, Springer Verlag. All rights reserved.",
year = "2008",
month = jun,
day = "1",
doi = "10.1088/1126-6708/2008/06/017",
language = "English (US)",
volume = "2008",
journal = "Journal of High Energy Physics",
issn = "1126-6708",
publisher = "Springer",
number = "6",
}