Hyperon Polarization in Unpolarized Scattering Processes

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Transverse polarization in the Hyperon (\Lambda) production in the unpolarizeddeep inelastic scattering and pp collisions is studied in the twist-three approach, considering the contribution from the quark-gluon-antiquark correlation distribution in nucleon. We further compare our results for deep inelastic scattering to a transverse momentum dependent factorization approach, and find consistency between the two approaches in the intermediate transverse momentum region. We also find that in pp collisions, there are only derivative terms contributions, and the non-derivative terms vanish.

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Zhou, Jian; Yuan, Feng & Liang, Zuo-Tang August 27, 2008.

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Description

Transverse polarization in the Hyperon (\Lambda) production in the unpolarizeddeep inelastic scattering and pp collisions is studied in the twist-three approach, considering the contribution from the quark-gluon-antiquark correlation distribution in nucleon. We further compare our results for deep inelastic scattering to a transverse momentum dependent factorization approach, and find consistency between the two approaches in the intermediate transverse momentum region. We also find that in pp collisions, there are only derivative terms contributions, and the non-derivative terms vanish.

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13

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  • Journal Name: Physical Review D

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  • Report No.: LBNL-951E
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 937576
  • Archival Resource Key: ark:/67531/metadc901147

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  • August 27, 2008

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  • Sept. 27, 2016, 1:39 a.m.

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  • Sept. 30, 2016, 6:36 p.m.

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Zhou, Jian; Yuan, Feng & Liang, Zuo-Tang. Hyperon Polarization in Unpolarized Scattering Processes, article, August 27, 2008; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc901147/: accessed September 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.