Are there approximate relations among transverse momentum dependent distribution functions?

Avakian, H.; Ефремов, А. В.; Goeke, K.; Metz, Andreas; Schweitzer, P.; Teckentrup, T.

doi:10.1103/physrevd.77.014023

Cited by 56 publications

(82 citation statements)

References 120 publications

(268 reference statements)

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“…The comparison to data discussed in [75] looks promising, though more experimental information is needed for a thorough test of approximate relations like the one in (26). Measuring the double spin asymmetry A LT , which we consider in the present paper, may provide such a test.…”

Section: Numerical Estimatesmentioning

confidence: 96%

“…We mention that (26) and a corresponding relation between chiral-odd parton distributions were used in [74,75] in order to estimate certain spin asymmetries in semi-inclusive DIS. The comparison to data discussed in [75] looks promising, though more experimental information is needed for a thorough test of approximate relations like the one in (26).…”

Section: Numerical Estimatesmentioning

confidence: 99%

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Exploring the structure of the proton through polarization observables inlp→jetX

et al. 2011

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We present results for a complete set of polarization observables for jet production in lepton proton collision, where the final state lepton is not observed. The calculations are carried out in collinear factorization at the level of Born diagrams. For all the observables we also provide numerical estimates for typical kinematics of a potential future Electron Ion Collider. On the basis of this numerical study, the prospects for the transverse single target spin asymmetry are particularly promising. This observable is given by a certain quark-gluon correlation function, which has a direct relation to the transverse momentum dependent Sivers parton distribution.

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Section: Numerical Estimatesmentioning

confidence: 96%

Section: Numerical Estimatesmentioning

confidence: 99%

Exploring the structure of the proton through polarization observables inlp→jetX

et al. 2011

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“…The distribution corresponding to the transverse quark in a longitudinal proton h ⊥ 1L (x, p ⊥ ) is found to be negative for u and positive for d quarks in some model calculations [6]. The transverse moment of h ⊥ 1L (x, p ⊥ ) can be connected with the higher twist TMDs using the Wandzura-Wilczektype approximation on the basis of available data from HERMESS [7]. The pretzelosity TMD, h ⊥ 1T (x, p ⊥ ) contributes to the single spin asymmetry(SSA) A sin(3φ h −φ S ) U T [3,7,8].…”

Section: Introductionmentioning

confidence: 95%

“…The transverse moment of h ⊥ 1L (x, p ⊥ ) can be connected with the higher twist TMDs using the Wandzura-Wilczektype approximation on the basis of available data from HERMESS [7]. The pretzelosity TMD, h ⊥ 1T (x, p ⊥ ) contributes to the single spin asymmetry(SSA) A sin(3φ h −φ S ) U T [3,7,8]. It is also related to the orbital angular momentum(OAM) of quarks [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Transverse structure of a proton in a light-front quark-diquark model

Maji

Chakrabarti

2017

Phys. Rev. D

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We present all the leading twist T-even TMDs in the light-front quark diquark model(LFQDM) and study the relations among them. The model contains both the scalar and vector diquark with the light front wave functions modeled from the soft-wall AdS/QCD prediction. The x − p 2 ⊥ factorization used in phenomenological extraction for TMDs is observed in this model. We present the results for the quark densities and the transverse shape of proton. The shape of the transversely polarized proton is shown to be non-spherical for nonzero transverse momentum. The scale evolution of both integrated and unintegrated TMDs are also presented in this paper.

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“…This is because that the size of the transversity distributions in the light-cone quark-diquark model is larger than that of h ⊥ 1T and h ⊥ 1L . The comparison of different types of asymmetries might be used to distinguish the sizes of different T -even chiralodd distributions and to check the approximate relations among TMDs [81].…”

Section: Lumentioning

confidence: 99%

Azimuthal asymmetries in single polarized proton-proton Drell-Yan processes

Lü

Zhu

2011

Phys. Rev. D

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We study the azimuthal asymmetries in proton-proton Drell-Yan processes with one incident proton being transversely or longitudinally polarized. We consider particularly the asymmetries contributed by the leading-twist chiral-odd quark distributions. We analyze the asymmetries with sin(2φ + φS) and sin(2φ − φS) modulations in transverse single polarized p ↑ p Drell-Yan and sin 2φ asymmetries in longitudinal single polarized p → p Drell-Yan at the Relativistic Heavy Ion Collider, the Japan Proton Accelerator Research Complex, E906 (Fermi Lab), and the Nuclotron-based Ion Collider Facility (Joint Institute for Nuclear Research). We show that the measurements of the asymmetries in those facilities can provide valuable information of the chiral-odd structure of the nucleon both in the valence and sea regions.

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Are there approximate relations among transverse momentum dependent distribution functions?

Cited by 56 publications

References 120 publications

Exploring the structure of the proton through polarization observables inlp→jetX

Exploring the structure of the proton through polarization observables inlp→jetX

Transverse structure of a proton in a light-front quark-diquark model

Azimuthal asymmetries in single polarized proton-proton Drell-Yan processes

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