%0 Conference Paper
%A Pappalardo, Luciano Libero
%A Schnell, Gunar
%T Latest Hermes results on azimuthal single- and double-spin asymmetries in semi-inclusive deep-inelastic scattering by transversely polarized protons
%J Proceedings of Science / International School for Advanced Studies
%V (ICHEP2022)
%@ 1824-8039
%C Trieste
%I SISSA
%M PUBDB-2023-00197
%B 2603207
%P 783
%D 2023
%X Azimuthal single- and double-spin asymmetries measured at HERMES in semi-inclusive leptoproduction of pions, charged kaons, protons, and antiprotons from a transversely polarized hydrogen target are presented. The results of a re-analysis of the previously published Collins and Sivers asymmetries, extended to include protons and antiprotons as well as an extraction in a multi-dimensional binning and enlarged phase space, is reported along with the corresponding results for the remaining single- and double-spin asymmetries associated to the semi-inclusive deep-inelastic scattering process with a transversely polarized target. Among those results, significant non-vanishing cos(ϕ− ϕ<sub>s</sub>) modulations provide evidence for a sizable worm-gear distribution 𝑔<sub>1𝑇</sub> . Most of the other modulations are found to be consistent with zero with the notable exception of large sin(𝜙<sub>s</sub>) modulations for charged pions and positively charged kaons.
%B 41st International Conference on High Energy physics
%C 6 Jul 2022 - 13 Jul 2022, Bologna (Italy)
Y2 6 Jul 2022 - 13 Jul 2022
M2 Bologna, Italy
%K electron p: deep inelastic scattering (INSPIRE)
%K deep inelastic scattering: semi-inclusive reaction (INSPIRE)
%K polarization: transverse (INSPIRE)
%K hydrogen: target (INSPIRE)
%K pi: leptoproduction (INSPIRE)
%K K: leptoproduction (INSPIRE)
%K p: leptoproduction (INSPIRE)
%K spin: asymmetry (INSPIRE)
%K modulation (INSPIRE)
%K anti-p: leptoproduction (INSPIRE)
%K Sivers function (INSPIRE)
%K HERMES (INSPIRE)
%K DESY HERA Stor (INSPIRE)
%K higher-dimensional (INSPIRE)
%K Collins (INSPIRE)
%K p: polarized target (INSPIRE)
%K phase space (INSPIRE)
%K experimental results (INSPIRE)
%F PUB:(DE-HGF)16 ; PUB:(DE-HGF)8 ; PUB:(DE-HGF)7
%9 Journal ArticleContribution to a conference proceedingsContribution to a book
%R 10.22323/1.414.0783
%U https://bib-pubdb1.desy.de/record/491505