Next-to-leading order QCD evolution of transversity fragmentation functions

Stratmann, M.; Vogelsang, Werner

doi:10.1103/physrevd.65.057502

Cited by 17 publications

(18 citation statements)

References 49 publications

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“…T , which is connected to the pair invariant mass by [9] \ q involving the splitting functions PðuÞ for transversely polarized partons [50,51] (see also the Appendix of Ref. [9], for convenience).…”

Section: Evolution Of Dihadron Fragmentation Functionsmentioning

confidence: 99%

Asymmetries involving dihadron fragmentation functions: From DIS toe+e−annihilation

et al. 2009

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Using a model calculation of dihadron fragmentation functions, we fit the spin asymmetry recently extracted by HERMES for the semi-inclusive pion pair production in deep-inelastic scattering on a transversely polarized proton target. By evolving the obtained dihadron fragmentation functions, we make predictions for the correlation of the angular distributions of two pion pairs produced in electron-positron annihilations at BELLE kinematics. Our study shows that the combination of two-hadron inclusive deepinelastic scattering and electron-positron annihilation measurements can provide a valid alternative to Collins effect for the extraction of the quark transversity distribution in the nucleon.

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Section: Evolution Of Dihadron Fragmentation Functionsmentioning

confidence: 99%

Asymmetries involving dihadron fragmentation functions: From DIS toe+e−annihilation

et al. 2009

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“…where the splitting functions δP ji for a transversely polarized fragmenting parton are used [39]. The δP ji are listed in Eqs.…”

Section: Extended Dihadron Fragmentation Functionsmentioning

confidence: 99%

Evolution equations for extended dihadron fragmentation functions

2007

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We consider dihadron fragmentation functions, describing the fragmentation of a parton in two unpolarized hadrons, and in particular extended dihadron fragmentation functions, explicitly dependent on the invariant mass, $M_h$, of the hadron pair. We first rederive the known results on $M_h$-integrated functions using Jet Calculus techniques, and then we present the evolution equations for extended dihadron fragmentation functions. Our results are relevant for the analysis of experimental measurements of two-particle-inclusive processes at different energies.Comment: 9 pages, 1 figure in eps format; RevTeX4 styl

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“…For H ⊥(1) 1 (z), we used the same LO evolution as the transversity fragmentation function H 1 (z) (see, e.g., Ref. [40]). The asymmetries (12 -14) are considered in Sec.…”

Section: A Sidismentioning

confidence: 99%

Weighted azimuthal asymmetries in a diquark spectator model

et al. 2010

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We analytically calculate weighted azimuthal asymmetries in semi-inclusive lepton-nucleon deepinelastic scattering and Drell-Yan processes, using transverse-momentum-dependent partonic densities obtained in a diquark spectator model. We compare the asymmetries with available preliminary experimental data, in particular for the Collins and the Sivers effect. We make predictions for other cases of interest in running and planned experiments.

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Next-to-leading order QCD evolution of transversity fragmentation functions

Abstract: We derive the next-to-leading order splitting kernels for the scale evolution of fragmentation functions for transversely polarized quarks into transversely polarized hadrons.

Cited by 17 publications

References 49 publications

Asymmetries involving dihadron fragmentation functions: From DIS toe+e−annihilation

Asymmetries involving dihadron fragmentation functions: From DIS toe+e−annihilation

Evolution equations for extended dihadron fragmentation functions

Weighted azimuthal asymmetries in a diquark spectator model

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