Transverse spin and momentum correlations in quantum chromodynamics

Research output: Contribution to journalArticle

Abstract

The naive time reversal odd ('T-odd') parton distribution and fragmentation functions are explored. We use the spectator model framework to study flavour dependence of the Boer-Mulders (h 1 ) and Sivers (f 1T ) functions as well as the 'T-even' but chiral odd function h 1L . These transverse momentum-dependent parton distribution functions are of significance for the analysis of azimuthal asymmetries in semi-inclusive deep inelastic scattering, as well as for the overall physical understanding of the distribution of transversely polarized quarks in unpolarized hadrons. in this context we also consider the Collins mechanism and the fragmentation function H 1 . As a by-product of this analysis we calculate the leading twist unpolarized cos(2φ) asymmetry, and sin(2φ) single spin asymmetry for a longitudinally polarized target in semi-inclusive deep inelastic scattering.

Original languageEnglish (US)
Pages (from-to)55-68
Number of pages14
JournalPramana - Journal of Physics
Volume72
Issue number1
DOIs
StatePublished - Jan 1 2009

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quantum chromodynamics
momentum
asymmetry
partons
fragmentation
inelastic scattering
distribution functions
transverse momentum
hadrons
quarks

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

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title = "Transverse spin and momentum correlations in quantum chromodynamics",
abstract = "The naive time reversal odd ('T-odd') parton distribution and fragmentation functions are explored. We use the spectator model framework to study flavour dependence of the Boer-Mulders (h 1 ⊥) and Sivers (f 1T ⊥) functions as well as the 'T-even' but chiral odd function h 1L ⊥. These transverse momentum-dependent parton distribution functions are of significance for the analysis of azimuthal asymmetries in semi-inclusive deep inelastic scattering, as well as for the overall physical understanding of the distribution of transversely polarized quarks in unpolarized hadrons. in this context we also consider the Collins mechanism and the fragmentation function H 1 ⊥. As a by-product of this analysis we calculate the leading twist unpolarized cos(2φ) asymmetry, and sin(2φ) single spin asymmetry for a longitudinally polarized target in semi-inclusive deep inelastic scattering.",
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Transverse spin and momentum correlations in quantum chromodynamics. / Gamberg, Leonard.

In: Pramana - Journal of Physics, Vol. 72, No. 1, 01.01.2009, p. 55-68.

Research output: Contribution to journalArticle

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