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The transverse nucleon single-spin asymmetry for the semi-inclusive production of photons in lepton-nucleon scattering

https://doi.org/10.1016/j.physletb.2020.135367

Albaltan, Weeam S.; Prokudin, Alexei; Schlegel, Marc (May 2020, Physics Letters B)

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Studies of gluon TMDs and their evolution using quarkonium-pair production at the LHC

https://doi.org/10.1140/epjc/s10052-020-7619-1

Scarpa, Florent; Boer, Daniël; Echevarria, Miguel G.; Lansberg, Jean-Philippe; Pisano, Cristian; Schlegel, Marc (February 2020, The European Physical Journal C)

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Polarized hyperon production in single-inclusive electron-positron annihilation at next-to-leading order

https://doi.org/10.1007/JHEP01(2019)111

Gamberg, Leonard; Kang, Zhong-Bo; Pitonyak, Daniel; Schlegel, Marc; Yoshida, Shinsuke (January 2019, Journal of High Energy Physics)

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Applications of the WW-type approximation to SIDIS

https://doi.org/10.22323/1.352.0211

Bastami, Saman; Avakian, Harut; Efremov, Anatoly Vasilievich; Kotzinian, Aram; Musch, Bernhard; Parsamyan, Bakur; Prokudin, Alexei; Schlegel, Marc; Schnell, Gunar; Schweitzer, Peter; et al (July 2019, 27th International Workshop on Deep Inelastic Scattering and Related Subjects (DIS 2019))

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 q¯gq-correlators are much smaller than 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. We discuss the applicability of the WW-type approximations on the basis of available data.
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