activity
19972007
most citedMeasurements of the Proton and Deuteron Spin Structure Functions g1 and g2

414 citations · 2.9k across the 18 of their papers we have counts for

collaborators

18 papers

hep-ex2007★ 26 cited

Transverse Polarization of Lambda and Lambda-bar Hyperons in Quasireal Photoproduction

The HERMES Collaboration, A. Airapetian

The HERMES experiment has measured the transverse polarization of Lambda and Lambda-bar hyperons produced inclusively in quasireal photoproduction at a positron beam energy of 27.6…

physics.ins-det2004★ 94 cited

The HERMES Polarized Hydrogen and Deuterium Gas Target in the HERA Electron Storage Ring

The HERMES Collaboration

The HERMES hydrogen and deuterium nuclear-polarized gas targets have been in use since 1996 with the polarized electron beam of HERA at DESY to study the spin structure of the nucl…

hep-ex2002★ 106 cited

Measurement of single-spin azimuthal asymmetries in semi-inclusive electroproduction of pions and kaons on a longitudinally polarised deuterium target

HERMES collaboration, A. Airapetian

Single-spin asymmetries have been measured for semi-inclusive electroproduction of , , and mesons in deep-inelastic scattering off a longitudinally polarised…

hep-ex2002★ 55 cited

Evidence for Quark-Hadron Duality in the Proton Spin Asymmetry

HERMES Collaboration, A. Airapetian

Spin-dependent lepton-nucleon scattering data have been used to investigate the validity of the concept of quark-hadron duality for the spin asymmetry . Longitudinally polaris…

hep-ex2002★ 172 cited

Precision Measurement of the Proton and Deuteron Spin Structure Functions g2 and Asymmetries A2

SLAC E155 Collaboration, P. L. Anthony, R. G. Arnold +1

We have measured the spin structure functions g2p and g2d and the virtual photon asymmetries A2p and A2d over the kinematic range 0.02 < x < 0.8 and 0.7 < Q^2 < 20 GeV^2 by scatter…

hep-ex2001★ 37 cited

Single-spin azimuthal asymmetry in exclusive electroproduction of pi^+ mesons

HERMES Collaboration, A. Airapetian

A single-spin asymmetry in the distribution of exclusively produced pi^+ mesons azimuthally around the virtual photon direction relative to the lepton scattering plane has been mea…

hep-ex2001★ 312 cited

Measurement of the Beam-Spin Azimuthal Asymmetry Associated with Deeply-Virtual Compton Scattering

HERMES Collaboration, A. Airapetian

The beam-spin asymmetry in hard electroproduction of photons has been measured for the first time. The data have been accumulated by the HERMES experiment at DESY using the HERA 27…

hep-ex2001★ 176 cited

Single-spin Azimuthal Asymmetries in Electroproduction of Neutral Pions in Semi-inclusive Deep-inelastic Scattering

HERMES Collaboration, A. Airapetian

A single-spin asymmetry in the azimuthal distribution of neutral pions relative to the lepton scattering plane has been measured for the first time in deep-inelastic scattering of…

hep-ex2001★ 17 cited

Double-Spin Asymmetry in the Cross Section for Exclusive rho^0 Production in Lepton-Proton Scattering

HERMES Collaboration, A. Airapetian

Evidence for a positive longitudinal double-spin asymmetry <A_1^rho> = 0.24 +-0.11 (stat) +-0.02 (syst) in the cross section for exclusive diffractive rho^0(770) vector meson produ…

hep-ex1999★ 293 cited

Observation of a Single-Spin Azimuthal Asymmetry in Semi-Inclusive Pion Electro-Production

A. Airapetian

Single-spin asymmetries for semi-inclusive pion production in deep-inelastic scattering have been measured for the first time. A significant target-spin asymmetry of the distributi…

hep-ex1999★ 165 cited

Flavor Decomposition of the Polarized Quark Distributions in the Nucleon from Inclusive and Semi-inclusive Deep-inelastic Scattering

K. Ackerstaff, The HERMES Collaboration

Spin asymmetries of semi-inclusive cross sections for the production of positively and negatively charged hadrons have been measured in deep-inelastic scattering of polarized posit…

hep-ex1999★ 196 cited

Measurement of the Deuteron Spin Structure Function g_1^d(x) for 1 (GeV/c)^2 < Q^2 < 40 (GeV/c)^2

E155 Collaboration

New measurements are reported on the deuteron spin structure function g_1^d. These results were obtained from deep inelastic scattering of 48.3 GeV electrons on polarized deuterons…

hep-ph1999★ 17 cited

Inclusive Hadron Photoproduction from Longitudinally Polarized Protons and Deuterons

The E155 Collaboration, P. L. Anthony et al

We report measurements of the asymmetry A_parallel for inclusive hadron production on longitudinally polarized proton and deuteron targets by circularly polarized photons. The phot…

hep-ex1998★ 128 cited

Measurements of R=sigma_L/sigma_T for 0.03<x<0.1 and Fit to World Data

E143 collaboration

Measurements were made at SLAC of the cross section for scattering 29 GeV electrons from carbon at a laboratory angle of 4.5 degrees, corresponding to 0.03<x<0.1 and 1.3<Q^2<2.7 Ge…

hep-ex1998★ 235 cited

Measurement of the Proton Spin Structure Function g1p with a Pure Hydrogen Target

A. Airapetian

A measurement of the proton spin structure function g1p(x,Q^2) in deep-inelastic scattering is presented. The data were taken with the 27.6 GeV longitudinally polarised positron be…

hep-ex1998★ 195 cited

The Flavor Asymmetry of the Light Quark Sea from Semi-inclusive Deep-inelastic Scattering

K. Ackerstaff

The flavor asymmetry of the light quark sea of the nucleon is determined in the kinematic range 0.02<x<0.3 and 1 GeV^2<Q^2<10 GeV^2, for the first time from semi-inclusive deep-ine…

hep-ph1998★ 414 cited

Measurements of the Proton and Deuteron Spin Structure Functions g1 and g2

E143 collaboration

Measurements are reported of the proton and deuteron spin structure functions g1 at beam energies of 29.1, 16.2, and 9.7 GeV and g2 at a beam energy of 29.1 GeV. The integrals of g…

hep-ex1997★ 308 cited

Measurement of the Neutron Spin Structure Function with a Polarized ^3He Target

The HERMES Collaboration, K. Ackerstaff

Results are reported from the HERMES experiment at HERA on a measurement of the neutron spin structure function in deep inelastic scattering using 27.5 GeV longitudi…