2016
DOI: 10.1140/epja/i2016-16155-5
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Di-hadron fragmentation and mapping of the nucleon structure

Abstract: The fragmentation of a colored parton directly into a pair of colorless hadrons is a nonperturbative mechanism that offers important insights into the nucleon structure. Di-hadron fragmentation functions can be extracted from semi-inclusive electron-positron annihilation data. They also appear in observables describing the semi-inclusive production of two hadrons in deep-inelastic scattering of leptons off nucleons or in hadron-hadron collisions. When a target nucleon is transversely polarized, a specific chir… Show more

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Cited by 22 publications
(29 citation statements)
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References 129 publications
(283 reference statements)
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“…(38) describes the density of transversely polarized spin-1/2 hadrons inside an unpolarized quark, while D ⊥ 1T describes the difference of two densities with opposite spin orientations of the hadron. Note that the probability densities also contain the prefactors of the TMD FFs in (38)- (40) and (46)- (48).…”
Section: Interpretation Of Ffsmentioning
confidence: 99%
See 1 more Smart Citation
“…(38) describes the density of transversely polarized spin-1/2 hadrons inside an unpolarized quark, while D ⊥ 1T describes the difference of two densities with opposite spin orientations of the hadron. Note that the probability densities also contain the prefactors of the TMD FFs in (38)- (40) and (46)- (48).…”
Section: Interpretation Of Ffsmentioning
confidence: 99%
“…The unpolarized SIDIS cross section for p → (h 1 h 2 )X is sensitive to D h 1 h 2 /q 1 (z, M h ) whereas in the cross section off a transversely polarized target the IFF H h 1 h 2 /q 1 (z, M h ) enters. One finds [66,48,288]…”
Section: Observables For Di-hadron Ffs In Sidismentioning
confidence: 99%
“…The chief reason is that the IFF is a crucial ingredient in accessing the so-called transversity parton distribution function (PDF) in dihadron production in semi-inclusive deep inelastic scattering (SIDIS) [3][4][5][6][7]. This is important, since the transversity PDF, which at leading approximation describes the correlations of the transverse polarizations of the nucleon and its constituent partons, is the least well-known leading-twist collinear PDF due to its chiral-odd nature.…”
Section: Introductionmentioning
confidence: 99%
“…This has been motivated by the ability of the new experiments to measure various azimuthal correlations in the deep inelastic scattering processes that involve polarized FFs and DiFFs. For example, the measurements of the quark transverse polarization dependent Collins FF and the socalled interference DiFF (IFF) in electron-positron annihilation in BELLE [2][3][4][5] and BaBar [6] experiments, have allowed the extraction of the quark transversity parton distribution function (PDF) [7][8][9][10] using semi-inclusive deep inelastic scattering (SIDIS) measurements with one and two detected final state hadrons by the HERMES [11,12] and COMPASS [13,14] collaborations. It is worth mentioning that the cross section for hadron production in e + e − annihilation involves a summation over all intermediate quark-antiquark pairs, thus requiring additional input in order to access the quark flavor dependence of the FFs and DiFFs.…”
Section: Introductionmentioning
confidence: 99%