Applications of the WW-type approximation to SIDIS

S. Bastami; H. Avakian; A. V. Efremov; A. Kotzinian; B. U. Musch; B. Parsamyan; A. Prokudin; M. Schlegel; G. Schnell; P. Schweitzer; K. Tezgin

doi:10.22323/1.352.0211

Applications of the WW-type approximation to SIDIS

S. Bastami, H. Avakian, A. V. Efremov, A. Kotzinian, B. U. Musch, B. Parsamyan, A. Prokudin, M. Schlegel, G. Schnell, P. Schweitzer, K. Tezgin

Division of Science (Berks)

Research output: Contribution to journal › Conference article › peer-review

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Abstract

We explore the complete cross-section for the production of unpolarized hadrons in semi-inclusive deep-inelastic scattering up to power-suppressed O(1/Q²) terms in the Wandzura-Wilczek-type (WW-type) approximation, which consists in systematically assuming that qgq ¯ -correlators are much smaller than qq ¯ -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. We discuss the applicability of the WW-type approximations on the basis of available data.

Original language	English (US)
Article number	211
Journal	Proceedings of Science
Volume	352
DOIs	https://doi.org/10.22323/1.352.0211
State	Published - 2019
Event	27th International Workshop on Deep-Inelastic Scattering and Related Subjects, DIS 2019 - Torino, Italy Duration: Apr 8 2019 → Apr 12 2019

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10.22323/1.352.0211

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@article{3235d46d9c4a4948a66791e4fc909352,

title = "Applications of the WW-type approximation to SIDIS",

abstract = "We explore the complete cross-section for the production of unpolarized hadrons in semi-inclusive deep-inelastic scattering up to power-suppressed O(1/Q2) terms in the Wandzura-Wilczek-type (WW-type) approximation, which consists in systematically assuming that qgq ¯ -correlators are much smaller than qq ¯ -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. We discuss the applicability of the WW-type approximations on the basis of available data.",

author = "S. Bastami and H. Avakian and Efremov, {A. V.} and A. Kotzinian and Musch, {B. U.} and B. Parsamyan and A. Prokudin and M. Schlegel and G. Schnell and P. Schweitzer and K. Tezgin",

note = "Publisher Copyright: {\textcopyright} Copyright owned by the author(s) under the terms of the Creative Commons; 27th International Workshop on Deep-Inelastic Scattering and Related Subjects, DIS 2019 ; Conference date: 08-04-2019 Through 12-04-2019",

year = "2019",

doi = "10.22323/1.352.0211",

language = "English (US)",

volume = "352",

journal = "Proceedings of Science",

issn = "1824-8039",

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TY - JOUR

T1 - Applications of the WW-type approximation to SIDIS

AU - Bastami, S.

AU - Avakian, H.

AU - Efremov, A. V.

AU - Kotzinian, A.

AU - Musch, B. U.

AU - Parsamyan, B.

AU - Prokudin, A.

AU - Schlegel, M.

AU - Schnell, G.

AU - Schweitzer, P.

AU - Tezgin, K.

PY - 2019

Y1 - 2019

N2 - We explore the complete cross-section for the production of unpolarized hadrons in semi-inclusive deep-inelastic scattering up to power-suppressed O(1/Q2) terms in the Wandzura-Wilczek-type (WW-type) approximation, which consists in systematically assuming that qgq ¯ -correlators are much smaller than qq ¯ -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. We discuss the applicability of the WW-type approximations on the basis of available data.

AB - We explore the complete cross-section for the production of unpolarized hadrons in semi-inclusive deep-inelastic scattering up to power-suppressed O(1/Q2) terms in the Wandzura-Wilczek-type (WW-type) approximation, which consists in systematically assuming that qgq ¯ -correlators are much smaller than qq ¯ -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. We discuss the applicability of the WW-type approximations on the basis of available data.

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DO - 10.22323/1.352.0211

M3 - Conference article

AN - SCOPUS:85076404355

SN - 1824-8039

VL - 352

JO - Proceedings of Science

JF - Proceedings of Science

M1 - 211

T2 - 27th International Workshop on Deep-Inelastic Scattering and Related Subjects, DIS 2019

Y2 - 8 April 2019 through 12 April 2019

ER -

Applications of the WW-type approximation to SIDIS

Abstract

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