18 Result(s)
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Open AccessAzimuthal single- and double-spin asymmetries in semi-inclusive deep-inelastic lepton scattering by transversely polarized protons
A comprehensive set of azimuthal single-spin and double-spin asymmetries in semi-inclusive leptoproduction of pions, charged kaons, protons, and antiprotons from transversely polarized protons is presented. Th...
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Open AccessRatios of helicity amplitudes for exclusive \(\rho ^0\) electroproduction on transversely polarized protons
Exclusive \(\rho ^0\) ρ ...
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Open AccessErratum to: Spin density matrix elements in exclusive \(\omega \) electroproduction on \(^1\) H and \(^2\) H targets at 27.5 GeV beam energy
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Open AccessTransverse-target-spin asymmetry in exclusive \(\omega \) -meson electroproduction
Hard exclusive electroproduction of \(\omega \) ω ...
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Open AccessBose–Einstein correlations in hadron-pairs from lepto-production on nuclei ranging from hydrogen to xenon
Bose–Einstein correlations of like-sign charged hadrons produced in deep-inelastic electron and positron scattering are studied in the HERMES experiment using nuclear targets of
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Open AccessSpin density matrix elements in exclusive \(\omega \) electroproduction on \(^1\) H and \(^2\) H targets at 27.5 GeV beam energy
Exclusive electroproduction of \(\omega \) ω ...
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Open AccessBeam-helicity asymmetry arising from deeply virtual Compton scattering measured with kinematically complete event reconstruction
The beam-helicity asymmetry in exclusive electroproduction of real photons by the longitudinally polarized Hera positron beam scattering off an unpolarized hydrogen target is measured at Hermes. The asymmetry ...
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Open AccessBeam-helicity and beam-charge asymmetries associated with deeply virtual Compton scattering on the unpolarised proton
Beam-helicity and beam-charge asymmetries in the hard exclusive leptoproduction of real photons from an unpolarised hydrogen target by a 27.6 GeV lepton beam are extracted from the Hermes data set of 2006-2007 us...
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Open AccessMeasurement of the virtual-photon asymmetry A 2 and the spin-structure function g 2 of the proton
A measurement of the virtual-photon asymmetry A 2(x,Q 2) and of the spin-structure function g 2(x,Q 2) of the proton are presented for the kinematic...
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Open AccessInclusive measurements of inelastic electron and positron scattering from unpolarized hydrogen and deuterium targets
Results of inclusive measurements of inelastic electron and positron scattering from unpolarized protons and deuterons at the HERMES experiment are presented. The structure functions F 2 ...
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Open AccessRatios of helicity amplitudes for exclusive ρ0 electroproduction
Exclusive ρ 0-meson electroproduction is studied in the HERMES experiment, using a 27.6 GeV longitudinally polarized electron/positron beam and unpolarized hydrogen and deuterium targets in the kinematic region 0...
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Article
Open AccessStudy of the hadronization process in cold nuclear medium
The improved two-scale model is used to perform the fit to the semi-inclusive deep-inelastic scattering (SIDIS) data of HERMES experiment at DESY on nuclear targets. The ratio of hadron multiplicity on nuclear...
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Open AccessLeading-order determination of the gluon polarization from high-p T hadron electroproduction
Longitudinal double-spin asymmetries of charged hadrons with high transverse momentum p T have been measured in electroproduction using the Hermes detec...
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Open AccessExclusive leptoproduction of real photons on a longitudinally polarised hydrogen target
Polarisation asymmetries are measured for the hard exclusive leptoproduction of real photons from a longitudinally polarised hydrogen target. These asymmetries arise from the deeply virtual Compton scattering ...
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Article
Open AccessSpin density matrix elements in exclusive ρ 0 electroproduction on 1H and 2H targets at 27.5 GeV beam energy
Spin Density Matrix Elements (SDMEs) describing the angular distribution of exclusive ρ 0 electroproduction and decay are determined in the HERMES experiment with 27.6 GeV beam energy and ...
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Article
Possible influence of the two string events on the hadron formation in a nuclear environment
One of the basic assumptions of the string model is that as a result of a DIS in nucleus a single string arises, which then breaks into hadrons. However the pomeron exchange considered in this work, leads to t...
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Article
Nuclear attenuation of high energy two-hadron system in the string model
Nuclear attenuation of the two-hadron system is considered in the string model. The two-scale model and its improved version, with two different choices of constituent formation time and sets of parameters obt...
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Article
Application of the two-scale model to the HERMES data on nuclear attenuation
The two-scale model and its improved version were used to perform a fit to the HERMES data for the \(\nu\) (the virtual...
