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Generalized Cahn effect and parton 3D motion in a covariant approach
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SYSNO ASEP 0356762 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Generalized Cahn effect and parton 3D motion in a covariant approach Author(s) Závada, Petr (FZU-D) RID, ORCID Source Title Physical Review D: Particles, Fields, Gravitation and Cosmology. - : American Physical Society - ISSN 1550-7998
Roč. 83, č. 1 (2010), 014022/1-014022/8Number of pages 8 s. Language eng - English Country US - United States Keywords Cahn effect, nucleon structure ; quark intrinsic motion Subject RIV BF - Elementary Particles and High Energy Physics R&D Projects LA08015 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z10100502 - FZU-D (2005-2011) UT WOS 000286766400004 DOI 10.1103/PhysRevD.83.014022 Annotation The Cahn effect and the unintegrated unpolarized parton distribution function $f_{1}^{q}(x,/mathbf{p}_{T})$ are studied in a covariant approach. The Cahn effect is compared with some other effects due to the parton intrinsic motion. The comparison suggests that the present understanding of parton transverse momenta and intrinsic motion in general is still rather incomplete. The new relation for $f_{1}^{q}(x,/mathbf{p}_{T})$ is obtained in the framework of the covariant parton model from which a prediction for this distribution function follows. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2011
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