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Title: Semi-inclusive deep-inelastic scattering in Wandzura-Wilczek-type approximation

Abstract

We present the complete cross-section for the production of unpolarized hadrons in semi-inclusive deep-inelastic scattering up to power-suppressed $${\cal O}(1/Q^2)$$ terms in the Wandzura--Wilczek-type approximation which consists in systematically assuming that $$\bar{q}gq$$--terms are much smaller than $$\bar{q}q$$--correlators. We compute all twist-2 and twist-3 structure functions and the corresponding asymmetries, and discuss the applicability of the Wandzura--Wilczek-type approximations on the basis of available data. We make predictions which can be tested by data from Jefferson Lab, COMPASS, HERMES, and the future Electron-Ion Collider. The results of this paper can be readily used for phenomenology and for event generators, and will help to improve our understanding of the TMD theory beyond leading twist.

Authors:
 [1]; ORCiD logo [2];  [3];  [4];  [5];  [6]; ORCiD logo [7];  [8];  [9];  [10];  [1]
  1. Univ. of Connecticut, Storrs, CT (United States)
  2. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
  3. Joint Inst. for Nuclear Research (JINR), Dubna (Russian Federation)
  4. Yerevan Physics Inst. (YerPhI) (Armenia); Istituto Nazionale di Fisica Nucleare (INFN), Torino (Italy)
  5. Univ. of Regensburg (Germany). Inst. for Theoretische Physik
  6. European Organization for Nuclear Research (CERN), Geneva (Switzerland); Istituto Nazionale di Fisica Nucleare (INFN), Torino (Italy)
  7. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Pennsylvania State Univ., Reading, PA (United States). Penn State Berks, Division of Science
  8. New Mexico State Univ., Las Cruces, NM (United States)
  9. Univ. of the Basque Country UPV/EHU, Bilbao (Spain). Dept. of Theoretical Physics; IKERBASQUE, Basque Foundation for Science, Bilbao (Spain)
  10. Univ. of Connecticut, Storrs, CT (United States); Univ. Tubingen, Tubingen (Germany). Inst. for Theoretical Physics
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP); National Science Foundation (NSF)
OSTI Identifier:
1532348
Report Number(s):
JLAB-THY-18-2775; DOE/OR/-23177-4500; arXiv:1807.10606
Journal ID: ISSN 1029-8479
Grant/Contract Number:  
AC05-06OR23177; FG02-04ER41309; PHY-1623454; PHY-1812423
Resource Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2019; Journal Issue: 6; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Deep Inelastic Scattering (Phenomenology); QCD Phenomenology

Citation Formats

Bastami, Saman, Avakian, Harut, Efremov, A. V., Kotzinian, Aram, Musch, Bernhard, Parsamyan, B., Prokudin, Alexei, Schlegel, Mark, Schnell, Gunar, Schweitzer, Peter, and Tezgin, Kemal. Semi-inclusive deep-inelastic scattering in Wandzura-Wilczek-type approximation. United States: N. p., 2019. Web. doi:10.1007/JHEP06(2019)007.
Bastami, Saman, Avakian, Harut, Efremov, A. V., Kotzinian, Aram, Musch, Bernhard, Parsamyan, B., Prokudin, Alexei, Schlegel, Mark, Schnell, Gunar, Schweitzer, Peter, & Tezgin, Kemal. Semi-inclusive deep-inelastic scattering in Wandzura-Wilczek-type approximation. United States. doi:10.1007/JHEP06(2019)007.
Bastami, Saman, Avakian, Harut, Efremov, A. V., Kotzinian, Aram, Musch, Bernhard, Parsamyan, B., Prokudin, Alexei, Schlegel, Mark, Schnell, Gunar, Schweitzer, Peter, and Tezgin, Kemal. Tue . "Semi-inclusive deep-inelastic scattering in Wandzura-Wilczek-type approximation". United States. doi:10.1007/JHEP06(2019)007. https://www.osti.gov/servlets/purl/1532348.
@article{osti_1532348,
title = {Semi-inclusive deep-inelastic scattering in Wandzura-Wilczek-type approximation},
author = {Bastami, Saman and Avakian, Harut and Efremov, A. V. and Kotzinian, Aram and Musch, Bernhard and Parsamyan, B. and Prokudin, Alexei and Schlegel, Mark and Schnell, Gunar and Schweitzer, Peter and Tezgin, Kemal},
abstractNote = {We present the complete cross-section for the production of unpolarized hadrons in semi-inclusive deep-inelastic scattering up to power-suppressed ${\cal O}(1/Q^2)$ terms in the Wandzura--Wilczek-type approximation which consists in systematically assuming that $\bar{q}gq$--terms are much smaller than $\bar{q}q$--correlators. We compute all twist-2 and twist-3 structure functions and the corresponding asymmetries, and discuss the applicability of the Wandzura--Wilczek-type approximations on the basis of available data. We make predictions which can be tested by data from Jefferson Lab, COMPASS, HERMES, and the future Electron-Ion Collider. The results of this paper can be readily used for phenomenology and for event generators, and will help to improve our understanding of the TMD theory beyond leading twist.},
doi = {10.1007/JHEP06(2019)007},
journal = {Journal of High Energy Physics (Online)},
number = 6,
volume = 2019,
place = {United States},
year = {2019},
month = {6}
}

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    Works referencing / citing this record:

    Large transverse momentum in semi-inclusive deeply inelastic scattering beyond lowest order
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    Double spin asymmetry in dihadron production in SIDIS off a longitudinally polarized nucleon target
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