期刊
PHYSICS LETTERS B
卷 797, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.physletb.2019.134886
关键词
Nucleon structure; Beam-helicity asymmetries; Deep-inelastic scattering; Twist-3; Transverse-momentum dependence
资金
- State Committee of Science of the Republic of Armenia [18T-1C180]
- FWO-Flanders, Belgium
- IWT, Belgium
- Natural Sciences and Engineering Research Council of Canada
- National Natural Science Foundation of China
- Alexander von Humboldt-Stiftung
- German Bundesministerium fur Bildung und Forschung (BMBF)
- Deutsche Forschungsgemeinschaft (DFG)
- Italian Istituto Nazionale di Fisica Nucleare (INFN)
- MEXT of Japan
- JSPS of Japan
- G-COE of Japan
- Dutch Foundation for Fundamenteel Onderzoek der Materie (FOM)
- Russian Academy of Sciences
- Russian Federal Agency for Science and Innovation
- Ikerbasque, Spain
- Basque Foundation for Science, Spain
- Basque Government, Spain [IT956-16]
- MINECO (Juan de la Cierva), Spain
- U. K. Engineering and Physical Sciences Research Council
- Science and Technology Facilities Council
- Scottish Universities Physics Alliance
- U.S. Department of Energy (DOE)
- National Science Foundation (NSF)
A measurement of beam-helicity asymmetries for single-hadron production in deep-inelastic scattering is presented. Data from the scattering of 27.6 GeV electrons and positrons off gaseous hydrogen and deuterium targets were collected by the HERMES experiment. The asymmetries are presented separately as a function of the Bjorken scaling variable, the hadron transverse momentum, and the fractional energy for charged pions and kaons as well as for protons and anti-protons. These asymmetries are also presented as a function of the three aforementioned kinematic variables simultaneously. (C) 2019 The Author. Published by Elsevier B.V.
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