Journal of High Energy Physics (Dec 2020)
Azimuthal single- and double-spin asymmetries in semi-inclusive deep-inelastic lepton scattering by transversely polarized protons
- The HERMES Collaboration,
- A. Airapetian,
- N. Akopov,
- Z. Akopov,
- E. C. Aschenauer,
- W. Augustyniak,
- R. Avakian,
- A. Bacchetta,
- S. Belostotski,
- V. Bryzgalov,
- G. P. Capitani,
- E. Cisbani,
- G. Ciullo,
- M. Contalbrigo,
- W. Deconinck,
- R. De Leo,
- E. De Sanctis,
- M. Diefenthaler,
- P. Di Nezza,
- M. Düren,
- G. Elbakian,
- F. Ellinghaus,
- A. Fantoni,
- L. Felawka,
- G. Gavrilov,
- V. Gharibyan,
- D. Hasch,
- Y. Holler,
- A. Ivanilov,
- H. E. Jackson,
- S. Joosten,
- R. Kaiser,
- G. Karyan,
- E. Kinney,
- A. Kisselev,
- V. Kozlov,
- P. Kravchenko,
- L. Lagamba,
- L. Lapikás,
- I. Lehmann,
- P. Lenisa,
- W. Lorenzon,
- S. I. Manaenkov,
- B. Marianski,
- H. Marukyan,
- Y. Miyachi,
- A. Movsisyan,
- V. Muccifora,
- Y. Naryshkin,
- A. Nass,
- G. Nazaryan,
- W.-D. Nowak,
- L. L. Pappalardo,
- P. E. Reimer,
- A. R. Reolon,
- C. Riedl,
- K. Rith,
- G. Rosner,
- A. Rostomyan,
- J. Rubin,
- D. Ryckbosch,
- A. Schäfer,
- G. Schnell,
- B. Seitz,
- T.-A. Shibata,
- V. Shutov,
- M. Statera,
- A. Terkulov,
- M. Tytgat,
- Y. Van Haarlem,
- C. Van Hulse,
- D. Veretennikov,
- I. Vilardi,
- S. Yaschenko,
- D. Zeiler,
- B. Zihlmann,
- P. Zupranski
Affiliations
- The HERMES Collaboration
- A. Airapetian
- II. Physikalisches Institut, Justus-Liebig Universität Gießen
- N. Akopov
- Yerevan Physics Institute
- Z. Akopov
- DESY
- E. C. Aschenauer
- DESY
- W. Augustyniak
- National Centre for Nuclear Research
- R. Avakian
- Yerevan Physics Institute
- A. Bacchetta
- Institut für Theoretische Physik, Universität Regensburg
- S. Belostotski
- Petersburg Nuclear Physics Institute, National Research Center Kurchatov Institute
- V. Bryzgalov
- Institute for High Energy Physics, National Research Center Kurchatov Institute
- G. P. Capitani
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati
- E. Cisbani
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma, Gruppo Collegato Sanità, and Istituto Superiore di Sanità
- G. Ciullo
- Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara, and Dipartimento di Fisica e Scienze della Terra, Università di Ferrara
- M. Contalbrigo
- Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara, and Dipartimento di Fisica e Scienze della Terra, Università di Ferrara
- W. Deconinck
- DESY
- R. De Leo
- Istituto Nazionale di Fisica Nucleare, Sezione di Bari
- E. De Sanctis
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati
- M. Diefenthaler
- Physikalisches Institut, Universität Erlangen-Nürnberg
- P. Di Nezza
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati
- M. Düren
- II. Physikalisches Institut, Justus-Liebig Universität Gießen
- G. Elbakian
- Yerevan Physics Institute
- F. Ellinghaus
- Nuclear Physics Laboratory, University of Colorado
- A. Fantoni
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati
- L. Felawka
- TRIUMF
- G. Gavrilov
- DESY
- V. Gharibyan
- Yerevan Physics Institute
- D. Hasch
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati
- Y. Holler
- DESY
- A. Ivanilov
- Institute for High Energy Physics, National Research Center Kurchatov Institute
- H. E. Jackson
- Physics Division, Argonne National Laboratory
- S. Joosten
- Department of Physics and Astronomy, Ghent University
- R. Kaiser
- SUPA, School of Physics and Astronomy, University of Glasgow
- G. Karyan
- DESY
- E. Kinney
- Nuclear Physics Laboratory, University of Colorado
- A. Kisselev
- Petersburg Nuclear Physics Institute, National Research Center Kurchatov Institute
- V. Kozlov
- Lebedev Physical Institute
- P. Kravchenko
- Physikalisches Institut, Universität Erlangen-Nürnberg
- L. Lagamba
- Istituto Nazionale di Fisica Nucleare, Sezione di Bari
- L. Lapikás
- National Institute for Subatomic Physics (Nikhef)
- I. Lehmann
- SUPA, School of Physics and Astronomy, University of Glasgow
- P. Lenisa
- Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara, and Dipartimento di Fisica e Scienze della Terra, Università di Ferrara
- W. Lorenzon
- Randall Laboratory of Physics, University of Michigan
- S. I. Manaenkov
- Petersburg Nuclear Physics Institute, National Research Center Kurchatov Institute
- B. Marianski
- National Centre for Nuclear Research
- H. Marukyan
- Yerevan Physics Institute
- Y. Miyachi
- Department of Physics, Tokyo Institute of Technology
- A. Movsisyan
- Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara, and Dipartimento di Fisica e Scienze della Terra, Università di Ferrara
- V. Muccifora
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati
- Y. Naryshkin
- Petersburg Nuclear Physics Institute, National Research Center Kurchatov Institute
- A. Nass
- Physikalisches Institut, Universität Erlangen-Nürnberg
- G. Nazaryan
- Yerevan Physics Institute
- W.-D. Nowak
- DESY
- L. L. Pappalardo
- Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara, and Dipartimento di Fisica e Scienze della Terra, Università di Ferrara
- P. E. Reimer
- Physics Division, Argonne National Laboratory
- A. R. Reolon
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati
- C. Riedl
- DESY
- K. Rith
- Physikalisches Institut, Universität Erlangen-Nürnberg
- G. Rosner
- SUPA, School of Physics and Astronomy, University of Glasgow
- A. Rostomyan
- DESY
- J. Rubin
- Department of Physics, University of Illinois
- D. Ryckbosch
- Department of Physics and Astronomy, Ghent University
- A. Schäfer
- Institut für Theoretische Physik, Universität Regensburg
- G. Schnell
- Department of Theoretical Physics, University of the Basque Country UPV/EHU
- B. Seitz
- SUPA, School of Physics and Astronomy, University of Glasgow
- T.-A. Shibata
- Department of Physics, Tokyo Institute of Technology
- V. Shutov
- Joint Institute for Nuclear Research
- M. Statera
- Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara, and Dipartimento di Fisica e Scienze della Terra, Università di Ferrara
- A. Terkulov
- Lebedev Physical Institute
- M. Tytgat
- Department of Physics and Astronomy, Ghent University
- Y. Van Haarlem
- Department of Physics and Astronomy, Ghent University
- C. Van Hulse
- Department of Physics and Astronomy, Ghent University
- D. Veretennikov
- Department of Theoretical Physics, University of the Basque Country UPV/EHU
- I. Vilardi
- Istituto Nazionale di Fisica Nucleare, Sezione di Bari
- S. Yaschenko
- Physikalisches Institut, Universität Erlangen-Nürnberg
- D. Zeiler
- Physikalisches Institut, Universität Erlangen-Nürnberg
- B. Zihlmann
- DESY
- P. Zupranski
- National Centre for Nuclear Research
- DOI
- https://doi.org/10.1007/JHEP12(2020)010
- Journal volume & issue
-
Vol. 2020,
no. 12
pp. 1 – 86
Abstract
Abstract A comprehensive set of azimuthal single-spin and double-spin asymmetries in semi-inclusive leptoproduction of pions, charged kaons, protons, and antiprotons from transversely polarized protons is presented. These asymmetries include the previously published HERMES results on Collins and Sivers asymmetries, the analysis of which has been extended to include protons and antiprotons and also to an extraction in a three-dimensional kinematic binning and enlarged phase space. They are complemented by corresponding results for the remaining four single-spin and four double-spin asymmetries allowed in the one-photon-exchange approximation of the semi-inclusive deep-inelastic scattering process for target-polarization orientation perpendicular to the direction of the incoming lepton beam. Among those results, significant non-vanishing cos (ϕ−ϕ S ) modulations provide evidence for a sizable worm-gear (II) distribution, g 1 T q x p T 2 $$ {g}_{1\mathrm{T}}^q\left(x,{\mathrm{p}}_T^2\right) $$ . Most of the other modulations are found to be consistent with zero with the notable exception of large sin (ϕ S ) modulations for charged pions and K +.
Keywords
