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1.
Applications of the WW-type approximation to SIDIS / Bastami, S. (Connecticut U.) ; Avakian, H. (Jefferson Lab) ; Efremov, A.V. (Dubna, JINR) ; Musch, B.U. (Regensburg U.) ; Parsamyan, B. (CERN) ; Prokudin, A. (Penn State U., Berks-Lehigh Valley) ; Schlegel, M. (New Mexico State U.) ; Schnell, G. (Basque U., Bilbao ; IKERBASQUE, Bilbao) ; Schweitzer, P. (Connecticut U.) ; Tezgin, K. (Connecticut U.) et al.
We explore the complete cross-section for the production of unpolarized hadrons in semi-inclusive deep-inelastic scattering up to power-suppressed $\mathcal{O}(1/Q^2)$ terms in the Wandzura-Wilczek-type (WW-type) approximation, which consists in systematically assuming that $\bar{q}gq$-correlators are much smaller than $\bar{q}q$-correlators. Under the applicability of WW-type approximations, certain relations among transverse momentum dependent parton distribution functions (TMDs) and fragmentation functions (FFs) occur which are used to approximate SIDIS cross-section in terms of a smaller subset of TMDs and FFs. [...]
arXiv:1907.11165.- SISSA, 2019-07-25 - 6 p. - Published in : PoS DIS2019 (2019) 211 Fulltext: 1907.11165 - PDF; PoS(DIS2019)211 - PDF;
In : The XXVII International Workshop on Deep Inelastic Scattering and Related Subjects, Turin, Italy, 8 - 12 Apr 2019, pp.211
2.
Semi-Inclusive Deep Inelastic Scattering in Wandzura-Wilczek-type approximation / Bastami, S. (Connecticut U.) ; Avakian, H. (Jefferson Lab) ; Efremov, A.V. (Dubna, JINR) ; Kotzinian, A. (Yerevan Phys. Inst. ; INFN, Turin) ; Musch, B.U. (Regensburg U.) ; Parsamyan, B. (CERN) ; Prokudin, A. (Jefferson Lab ; Penn State U., Berks-Lehigh Valley) ; Schlegel, M. (New Mexico State U.) ; Schnell, G. (Basque U., Bilbao ; IKERBASQUE, Bilbao) ; Schweitzer, P. (Connecticut U. ; Tubingen U.) et al.
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. [...]
arXiv:1807.10606; JLAB-THY-18-2775.- 2019-06-04 - 71 p. - Published in : EPJ Web Conf.: 204 (2019) , pp. 01013 Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF; External link: JLab Document Server
In : 24th International Baldin Seminar on High Energy Physics Problems : Relativistic Nuclear Physics and Quantum Chromodynamics, Dubna, Russia, 17 - 22 Sep 2018, pp.01013

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