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Showing 1 to 11 of 11 for “"semi-inclusive deep inelastic scattering"”.
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Fragmentation and nucleon structure in semi-inclusive deep-inelastic scattering at the HERMES experiment
Multiplicities for the semi-inclusive production of each charge state of π± and K± mesons in deep-inelastic scattering are presented as a function of the kinematic quantities x, Q2, z and Ph⊥. The multiplicities were extracted from data collected by the HERMES experiment at the HERA storage ring …
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Measurement of Single and Double Spin Asymmetries in Semi-Inclusive Deep-Inelastic Scattering on Proton and Deuteron
… experiment with CLAS at Jefferson Lab collected semi-inclusive pion electro-production data on longitudinally polarized solid state NH<sub>3</sub> and ND<sub>3</sub> targets with longitudinally polarized electrons of approximately 6 GeV energy. Data on all three pion channels, π +, π– and …
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Charge Symmetry Violation Quark Distributions via Precise Measurement of π+/π− Ratios in Semi-inclusive Deep Inelastic Scattering
… section ratio of charged pion production in semi-inclusive deep inelastic scattering (SIDIS) from deuterium. Such measurements were proposed and carried in experiment E12-09-002 at Jefferson Lab. The experiment was conducted in Hall C from fall 2018 to spring 2019 using the upgraded 10.6 GeV …
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Measurement of the Transverse Spin Polarization of the Lambda in Quasi-Real Photoproduction and Electroproduction at HERMES
… collisions, but studies in positron-proton scattering with high statistical accuracy have been lacking. At the HERMES experiment, the polarization of the Lambda and Lambda have been measured in the inclusive, quasi-real photoproduction regime. A positive polarization with respect to the …
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The Boer-Mulders and Cahn effects: azimuthal modulations in the spin-independent SIDIS cross section at Hermes
… and cos 2φh modulations of the spin independent semi-inclusive deep inelastic scattering cross section were measured at Hermes. These modulations are sensitive to the polarization and transverse motion of quarks within the nucleon. The Cahn effect, which contributes at subleading twist (twist-3) …
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On Extracting Hadron Multiplicities and Unpolarized Nucleon Structure Ratios From SIDIS Data at the HERMES Experiment
… analysis using the world's largest data set of semi-inclusive deep inelastic scattering (SIDIS) in the kinematic range 0.1 < x < 0.6 at an average Q2 of 2.5 GeV2. This data was collected at the HERMES experiment located in the east hall of the HERA accelerator between the years 2000 and 2006. …
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Transverse momentum dependent nucleon structure from pions impinged on a transversely polarized proton target
… change signs between the Drell-Yan process and Semi-Inclusive Deep Inelastic Scattering (SIDIS). The COMPASS spectrometer is unique in that it has the ability to measure the products from a polarized target and also because the beam can be modified to measure the SIDIS and Drell-Yan processes. …
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Measurement of target single-spin asymmetry in charged kaon electroproduction on a transversely polarized 3He target
… Sivers function in the neutron. A semi-inclusive deep inelastic scattering experiment was performed at the Hall A of the Jefferson laboratory using 5.9 GeV electron beam and a transversely polarized ^{3}He target. The scattered electrons and the produced hadrons (pions, kaons, and …
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Limits of QCD
… transverse momentum dependent (TMD) physics in semi-inclusive deep inelastic scattering (SIDIS), which probes the small transverse momentum regime arising from the soft and collinear limits of QCD. We derive all-order factorization theorems for azimuthal asymmetries in SIDIS at next-to-leading …
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Transverse Spin Structure of the Proton Studied in Semi–inclusive DIS
… which prevents its determination in purely inclusive measurements. In order to access the transversity distribution, it has to couple to a chiral-odd object, e.g., to the so-called Collins fragmentation function in semi-inclusive deep-inelastic scattering (DIS). This gives rise to a …
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J/ψ production and polarization with the inclusion of transverse momentum effects
… In particular, we consider the J/ψ yield in semi-inclusive deep-inelastic scattering (SIDIS) processes and its subsequent decay into a lepton pair. The corresponding cross section can be parameterized in terms of polarization parameters, which may be accessible at the future Electron-Ion …