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

(The HERMES Collaboration)

doi:10.1103/PhysRevD.99.112001

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

(The HERMES Collaboration)

Student Lab and Education

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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.

Original language	English
Article number	112001
Journal	Physical Review D
Volume	99
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevD.99.112001
Publication status	Published - 5 Jun 2019

Funding

We gratefully acknowledge the DESY management for its support, the staff at DESY and the collaborating institutions for their significant effort. This work was supported by the State Committee of Science of the Republic of Armenia, Grant No. 18T-1C180; the FWO-Flanders and IWT, Belgium; the Natural Sciences and Engineering Research Council of Canada; the National Natural Science Foundation of China; the Alexander von Humboldt Stiftung, the German Bundesministerium für Bildung und Forschung (BMBF), and the Deutsche Forschungsgemeinschaft (DFG); the Italian Istituto Nazionale di Fisica Nucleare (INFN); the MEXT, JSPS, and G-COE of Japan; the Dutch Foundation for Fundamenteel Onderzoek der Materie (FOM); the Russian Academy of Science and the Russian Federal Agency for Science and Innovations; the Basque Foundation for Science (IKERBASQUE), the Basque Government, Grant No. IT956-16, and MINECO (Juan de la Cierva), Spain; the U.K. Engineering and Physical Sciences Research Council, the Science and Technology Facilities Council, and the Scottish Universities Physics Alliance; as well as the U.S. Department of Energy (DOE) and the National Science Foundation (NSF).

Funders	Funder number
Dutch Foundation for Fundamenteel Onderzoek der Materie
FWO-Flanders
German Bundesministerium für Bildung und Forschung
Russian Federal Agency for Science and Innovations
State Committee of Science of the Republic of Armenia	18T-1C180
National Science Foundation	1807338
U.S. Department of Energy
Alexander von Humboldt-Stiftung
Natural Sciences and Engineering Research Council of Canada
Engineering and Physical Sciences Research Council
Science and Technology Facilities Council
Scottish Universities Physics Alliance
Deutsche Forschungsgemeinschaft
Japan Society for the Promotion of Science
Ministry of Education, Culture, Sports, Science and Technology
Stichting voor Fundamenteel Onderzoek der Materie
National Natural Science Foundation of China
Bundesministerium für Bildung und Forschung
Russian Academy of Sciences
Eusko Jaurlaritza	IT956-16
Agentschap voor Innovatie door Wetenschap en Technologie
Ministerio de Economía y Competitividad
Ikerbasque, Basque Foundation for Science
Instituto Nazionale di Fisica Nucleare
Istituto Nazionale di Fisica Nucleare

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

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10.1103/PhysRevD.99.112001

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@article{e856f601dca247b29231fe2e07799f8e,

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

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.",

author = "A. Airapetian and N. Akopov and Z. Akopov and Aschenauer, \{E. C.\} and W. Augustyniak and R. Avakian and A. Avetissian and S. Belostotski and Blok, \{H. P.\} and A. Borissov and V. Bryzgalov and Capitani, \{G. P.\} and E. Cisbani and G. Ciullo and M. Contalbrigo and Dalpiaz, \{P. F.\} and W. Deconinck and \{De Leo\}, R. and \{De Nardo\}, L. and \{De Sanctis\}, E. and M. Diefenthaler and \{Di Nezza\}, P. and M. D{\"u}ren and G. Elbakian and F. Ellinghaus and A. Fantoni and L. Felawka and S. Frullani and G. Gavrilov and V. Gharibyan and F. Giordano and S. Gliske and D. Hasch and Y. Holler and A. Ivanilov and Jackson, \{H. E.\} and S. Joosten and R. Kaiser and G. Karyan and T. Keri and E. Kinney and A. Kisselev and V. Korotkov and V. Kozlov and P. Kravchenko and Krivokhijine, \{V. G.\} and L. Lagamba and L. Lapik{\'a}s and I. Lehmann and W. Lorenzon and Ma, \{B. Q.\} and D. Mahon and Manaenkov, \{S. I.\} and Y. Mao and B. Marianski and H. Marukyan and Y. Miyachi and A. Movsisyan and V. Muccifora and A. Mussgiller and Y. Naryshkin and A. Nass and G. Nazaryan and Nowak, \{W. D.\} and Pappalardo, \{L. L.\} and R. Perez-Benito and A. Petrosyan and Reimer, \{P. E.\} and Reolon, \{A. R.\} and C. Riedl and K. Rith and G. Rosner and A. Rostomyan and J. Rubin and D. Ryckbosch and Y. Salomatin and G. Schnell and B. Seitz and Shibata, \{T. A.\} and M. Statera and E. Steffens and Steijger, \{J. J.M.\} and S. Taroian and A. Terkulov and R. Truty and A. Trzcinski and M. Tytgat and \{Van Der Nat\}, \{P. B.\} and \{Van Haarlem\}, Y. and \{Van Hulse\}, C. and D. Veretennikov and V. Vikhrov and I. Vilardi and C. Vogel and S. Wang and S. Yaschenko and B. Zihlmann and P. Zupranski and \{(The HERMES Collaboration)\}",

year = "2019",

month = jun,

day = "5",

doi = "10.1103/PhysRevD.99.112001",

language = "English",

volume = "99",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society",

number = "11",

}

TY - JOUR

T1 - Longitudinal double-spin asymmetries in semi-inclusive deep-inelastic scattering of electrons and positrons by protons and deuterons

AU - Airapetian, A.

AU - Akopov, N.

AU - Akopov, Z.

AU - Aschenauer, E. C.

AU - Augustyniak, W.

AU - Avakian, R.

AU - Avetissian, A.

AU - Belostotski, S.

AU - Blok, H. P.

AU - Borissov, A.

AU - Bryzgalov, V.

AU - Capitani, G. P.

AU - Cisbani, E.

AU - Ciullo, G.

AU - Contalbrigo, M.

AU - Dalpiaz, P. F.

AU - Deconinck, W.

AU - De Leo, R.

AU - De Nardo, L.

AU - De Sanctis, E.

AU - Diefenthaler, M.

AU - Di Nezza, P.

AU - Düren, M.

AU - Elbakian, G.

AU - Ellinghaus, F.

AU - Fantoni, A.

AU - Felawka, L.

AU - Frullani, S.

AU - Gavrilov, G.

AU - Gharibyan, V.

AU - Giordano, F.

AU - Gliske, S.

AU - Hasch, D.

AU - Holler, Y.

AU - Ivanilov, A.

AU - Jackson, H. E.

AU - Joosten, S.

AU - Kaiser, R.

AU - Karyan, G.

AU - Keri, T.

AU - Kinney, E.

AU - Kisselev, A.

AU - Korotkov, V.

AU - Kozlov, V.

AU - Kravchenko, P.

AU - Krivokhijine, V. G.

AU - Lagamba, L.

AU - Lapikás, L.

AU - Lehmann, I.

AU - Lorenzon, W.

AU - Ma, B. Q.

AU - Mahon, D.

AU - Manaenkov, S. I.

AU - Mao, Y.

AU - Marianski, B.

AU - Marukyan, H.

AU - Miyachi, Y.

AU - Movsisyan, A.

AU - Muccifora, V.

AU - Mussgiller, A.

AU - Naryshkin, Y.

AU - Nass, A.

AU - Nazaryan, G.

AU - Nowak, W. D.

AU - Pappalardo, L. L.

AU - Perez-Benito, R.

AU - Petrosyan, A.

AU - Reimer, P. E.

AU - Reolon, A. R.

AU - Riedl, C.

AU - Rith, K.

AU - Rosner, G.

AU - Rostomyan, A.

AU - Rubin, J.

AU - Ryckbosch, D.

AU - Salomatin, Y.

AU - Schnell, G.

AU - Seitz, B.

AU - Shibata, T. A.

AU - Statera, M.

AU - Steffens, E.

AU - Steijger, J. J.M.

AU - Taroian, S.

AU - Terkulov, A.

AU - Truty, R.

AU - Trzcinski, A.

AU - Tytgat, M.

AU - Van Der Nat, P. B.

AU - Van Haarlem, Y.

AU - Van Hulse, C.

AU - Veretennikov, D.

AU - Vikhrov, V.

AU - Vilardi, I.

AU - Vogel, C.

AU - Wang, S.

AU - Yaschenko, S.

AU - Zihlmann, B.

AU - Zupranski, P.

AU - (The HERMES Collaboration)

PY - 2019/6/5

Y1 - 2019/6/5

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/85069671098

UR - https://www.scopus.com/pages/publications/85069671098#tab=citedBy

U2 - 10.1103/PhysRevD.99.112001

DO - 10.1103/PhysRevD.99.112001

M3 - Article

AN - SCOPUS:85069671098

SN - 2470-0010

VL - 99

JO - Physical Review D

JF - Physical Review D

IS - 11

M1 - 112001

ER -

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

Abstract

Funding

UN SDGs

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