Longitudinal double-spin asymmetries in semi-inclusive deep-inelastic scattering of electrons and positrons by protons and deuterons

Airapetian A, Akopov N, Akopov Z, Aschenauer EC, Augustyniak W, Avakian R, Avetissian A, Belostotski S, Blok HP, Borissov A, Bryzgalov V, Capitani GP, Cisbani E, Ciullo G, Contalbrigo M, Dalpiaz PF, Deconinck W, De Leo R, De Nardo L, De Sanctis E, Diefenthaler M, Di Nezza P, Duren M, Elbakian G, Ellinghaus F, Fantoni A, Felawka L, Frullani S, Gavrilov G, Gharibyan V, Giordano F, Gliske S, Hasch D, Holler Y, Ivanilov A, Jackson HE, Joosten S, Kaiser R, Karyan G, Keri T, Kinney E, Kisselev A, Korotkov V, Kozlov V, Kravchenko P, Krivokhijine VG, Lagamba L, Lapikas L, Lehmann I, Lorenzon W, Ma BQ, Mahon D, Manaenkov SI, Mao Y, Marianski B, Marukyan H, Miyachi Y, Movsisyan A, Muccifora V, Mußgiller A, Naryshkin Y, Naß A, Nazaryan G, Nowak WD, Pappalardo LL, Perez-Benito R, Petrosyan A, Reimer PE, Reolon AR, Riedl C, Rith KW, Rosner G, Rostomyan A, Rubin J, Ryckbosch D, Salomatin Y, Schnell G, Seitz B, Shibata TA, Statera M, Steffens E, Steijger JJM, Taroian S, Terkulov A, Truty R, Trzcinski A, Tytgat M, Van Der Nat PB, Van Haarlem Y, Van Hulse C, Veretennikov D, Vikhrov V, Vilardi I, Vogel C, Wang S, Yaschenko S, Zihlmann B, Zupranski P (2019)

Publication Type: Journal article

Publication year: 2019

Journal

Book Volume: 99

Journal Issue: 11

DOI: 10.1103/PhysRevD.99.112001

Abstract

A comprehensive collection of results on longitudinal double-spin asymmetries is presented for charged pions and kaons produced in semi-inclusive deep-inelastic scattering of electrons and positrons on the proton and deuteron, based on the full HERMES data set. The dependence of the asymmetries on hadron transverse momentum and azimuthal angle extends the sensitivity to the flavor structure of the nucleon beyond the distribution functions accessible in the collinear framework. No strong dependence on those variables is observed. In addition, the hadron charge-difference asymmetry is presented, which under certain model assumptions provides access to the helicity distributions of valence quarks.

Authors with CRIS profile

Involved external institutions

Deutsches Elektronen-Synchrotron DESY Germany (DE) Justus-Liebig-Universität Gießen Germany (DE) Yerevan Physics Institute (YerPhI) / Երևանի Ֆիզիկայի Ինստիտուտ Armenia (AM) National Research Centre (NRC) / المركز القومي للبحوث Egypt (EG) National Institute for Nuclear Physics / Istituto Nazionale di Fisica Nucleare (INFN) Italy (IT) Università degli Studi di Ferrara Italy (IT) Vrije Universiteit Amsterdam (VU) / University Amsterdam Netherlands (NL) National Centre for Nuclear Research (früher:Institute of Atomic Energy POLATOM & Andrzej Sołtan Institute for Nuclear Studies) / Narodowe Centrum Badań Jądrowych (NCBJ) Poland (PL) University of Colorado System United States (USA) (US) Peking University (PKU) / 北京大学 China (CN) University of Michigan United States (USA) (US) Universiteit Gent (UGent) / Ghent University Belgium (BE) University of Glasgow United Kingdom (GB) Argonne National Laboratory United States (USA) (US) Tokyo Institute of Technology Japan (JP) Lebedev Physical Institute of the Russian Academy of Sciences (LPI RAS) / Физи́ческий институ́т имени П.Н.Ле́бедева Российской академии наук (ФИАН) Russian Federation (RU) National Institute for Subatomic Physics / Nationaal instituut voor subatomaire fysica (Nikhef) Netherlands (NL) University of Basque Country / Universidad del Pais Vasco (UPV) / Euskal Herriko Unibersitatea (EHU) Spain (ES) Joint Institute for Nuclear Research (JINR) / Объединённый институт ядерных исследований (ОИЯИ) Russian Federation (RU) University of Illinois at Urbana-Champaign United States (USA) (US)

How to cite

APA:

Airapetian, A., Akopov, N., Akopov, Z., Aschenauer, E.C., Augustyniak, W., Avakian, R.,... Zupranski, P. (2019). Longitudinal double-spin asymmetries in semi-inclusive deep-inelastic scattering of electrons and positrons by protons and deuterons. Physical Review D, 99(11). https://dx.doi.org/10.1103/PhysRevD.99.112001

MLA:

Airapetian, A., et al. "Longitudinal double-spin asymmetries in semi-inclusive deep-inelastic scattering of electrons and positrons by protons and deuterons." Physical Review D 99.11 (2019).

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