skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Study of TMDs with polarized beam and/or targets

Journal Article · · Physics of Particles and Nuclei
 [1]
  1. INFN-University of Ferrara, Ferrara (Italy)

A Fourier analysis of single- and double-spin azimuthal asymmetries measured at HERMES in semi-inclusive deep-inelastic scattering of unpolarized or longitudinally polarized leptons off tranversely polarized protons is presented for pions and charged kaons. The extracted amplitudes can be interpreted as convolutions of transverse momentum-dependent distribution and fragmentation functions. In particular, the measured double-spin asymmetries are sensitive to the poorly known worm-gear quark distribution g{sup ⊥}{sub 1T}.

OSTI ID:
22981745
Journal Information:
Physics of Particles and Nuclei, Vol. 45, Issue 1; Other Information: Copyright (c) 2014 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7796
Country of Publication:
United States
Language:
English