@article{c5ebb64580e04d3fa4bd0e5b13e10085,
title = "A novel beam-spin asymmetry in double-hadron inclusive lepto-production",
abstract = "We show that a new beam-spin asymmetry appears in deep inelastic inclusive lepto-production at low transverse momenta when a hadron in the target fragmentation region is observed in association with another hadron in the current fragmentation region. The beam leptons are longitudinally polarized while the target nucleons are unpolarized. This asymmetry is a leading-twist effect generated by the correlation between the transverse momentum of quarks and the transverse momentum of the hadron emitted by the target. Experimental signatures of this effect are discussed.",
keywords = "Fracture functions, Polarization, Semi-inclusive DIS, Target fragmentation, Transverse momentum",
author = "M. Anselmino and V. Barone and A. Kotzinian",
note = "Funding Information: We are very grateful to John Collins for useful discussion and suggestions. We acknowledge support by the European Community – Research Infrastructure Activity under the FP6 Program “Structuring the European Research Area” (HadronPhysics, contract number RII3-CT-2004-506078 ), by the Italian Ministry of Education, University and Research ( PRIN 2008 ) and by the Helmholtz Association through funds provided to the virtual institute “Spin and Strong QCD” ( VH-VI-231 ). The work of one of us (A.K.) is also supported by Regione Piemonte .",
year = "2012",
month = jul,
day = "9",
doi = "10.1016/j.physletb.2012.06.003",
language = "English",
volume = "713",
pages = "317--320",
journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",
issn = "0370-2693",
publisher = "Elsevier",
number = "3",
}