Final COMPASS results on the spin-dependent structure functions $g_1^p$ and $g_1^d$ in the deep-inelastic and nonperturbative regions

Badełek, B.

doi:10.22323/1.297.0247

Cited by 1 publication

(2 citation statements)

References 13 publications

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“…The fits providing the variants HERAPDF2.0FF3A and RAPDF2.0FF3B were obtained using the OPENQC-AD [96] package as implemented in HERAFitter, parly interfaced to QCDNUM. This was proven to be consist with the standalone version of OPENQCDRAD and, in case of the A variant, with the FFNS definition used by ABM [40][41][42] fitting group. The HERAFitter implemenon allows an external steering of the order of α s in F L , as ed in Table 3.…”

Section: Parton Distribution Functionsmentioning

confidence: 99%

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Probing nucleon spin structure in deep-inelastic scattering, proton-proton collisions and Drell-Yan processes

Riedl

2022

Preprint

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A pedagogical summary of current and past experimental results of spin-dependent nucleon structure prior to the arrival of the Electron-Ion Collider is attempted. After an introduction, results from fixed-target experiments at SLAC, Fermilab, Jefferson Lab, CERN and DESY and collider experiments from RHIC are presented, starting with the longitudinal spin structure of the nucleon, followed by generalized parton distributions (GPDs), which map the proton in transverse position space. The final part discusses transverse proton or parton spin and transverse parton momenta (TMDs), and their their (spin-orbit) correlations, which are addressed by a multitude of recent experimental results. The GPDs and TMDs provide complementary pathways to mapping multi-dimensional nucleon structure.

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Section: Parton Distribution Functionsmentioning

confidence: 99%

“…Due to the higher lepton-beam energy at COMPASS as compared to HERMES, COMPASS has a larger reach to small values of x. While the COMPASS proton data clearly show some spin effects at lowest x [41], the deuteron g 1 is compatible with zero in that range [42], unlike indicated by older SMC measurements on the deuteron.…”

Section: 3mentioning

confidence: 99%

Probing nucleon spin structure in deep-inelastic scattering, proton-proton collisions and Drell-Yan processes

Riedl

2022

Preprint

View full text Add to dashboard Cite

show abstract

Final COMPASS results on the spin-dependent structure functions $g_1^p$ and $g_1^d$ in the deep-inelastic and nonperturbative regions

Cited by 1 publication

References 13 publications

Probing nucleon spin structure in deep-inelastic scattering, proton-proton collisions and Drell-Yan processes

Probing nucleon spin structure in deep-inelastic scattering, proton-proton collisions and Drell-Yan processes

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