Pionic parton distributions

Glück, M.; Reya, E.; Vogt, A.

doi:10.1007/bf01559743

Cited by 546 publications

(967 citation statements)

References 14 publications

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“…The total momentum fractions carried by gluons and quarks are in the ratio 1 : 3. Both features are in qualitative agreement with the shape and size of the input parton distributions found by GRV [2][3][4] at Q 2 ≃ 0.2 GeV 2 . When evolved to Q 2 > ∼ 1 GeV 2 these distributions reproduce the experimental data.…”

supporting

confidence: 86%

The intrinsic gluon component of the nucleon

Hoyer

Roy²

1997

Physics Letters B

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Using an intrinsic parton model we estimate the rough shape and size of the intrinsic gluon component of the nucleon, corresponding to an energy scale Q of the order Λ QCD . It is nearly as hard in shape as the valence quark, while its size accounts for a quarter of the nucleon momentum. Both are in qualitative agreement with the input leading twist gluon distribution assumed by Glück, Reya and Vogt at this scale in order to reproduce the observed distributions at Q 2 > ∼ 1 GeV 2 via perturbative QCD evolution.

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supporting

confidence: 86%

The intrinsic gluon component of the nucleon

Hoyer

Roy²

1997

Physics Letters B

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“…These distributions are determined in a fixed flavour number scheme [37], and thus do not contain c and b quarks. As in the unpolarized calculation of [26], we take these from the the older GRV92 parametrisation [38]. For the polarised parton distributions, we used the GRSV2000 parametrisation [9] with its "standard" scenario, which contains only u, d, s quarks.…”

Section: Inclusive Hadronic Asymmetriesmentioning

confidence: 99%

Spin asymmetries in squark and gluino production at polarized hadron colliders

2004

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We study the production cross sections for squarks and gluinos in collision of longitudinally polarized hadrons. The corresponding polarized partonic cross sections are computed in leading order supersymmetric QCD. The resulting asymmetries are evaluated for the polarized proton collider RHIC, as well as for hypothetical polarized options of the Tevatron and the LHC. These asymmetries turn out to be sizable over a wide range of supersymmetric particle masses. Once supersymmetric particles are discovered in unpolarized collisions, a measurement of the spin asymmetries would thus potentially help to establish the properties of the newly discovered particles and open a window to detailed sparticle spectroscopy at future polarized hadron colliders.

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“…The band corresponds to a set of parameter values consistent with the discussion in the previous section, namely p = 0.75 ÷ 0.8, p tmin = 1.15 GeV and GRV and MRST [5] densities in the calculation of σ jet and q max .…”

Section: The Froissart Limitmentioning

confidence: 98%