activity
20012007
most citedSingle-spin asymmetries in semi-inclusive deep-inelastic scattering on a transversely polarized hydrogen target

556 citations · 2.4k across the 20 of their papers we have counts for

collaborators

20 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…

hep-ex2006★ 57 cited

Beam-Spin Asymmetries in the Azimuthal Distribution of Pion Electroproduction

HERMES Collaboration, A. Airapetian

A measurement of the beam-spin asymmetry in the azimuthal distribution of pions produced in semi-inclusive deep-inelastic scattering off protons is presented. The measurement was p…

hep-ex2006★ 104 cited

The Beam--Charge Azimuthal Asymmetry and Deeply Virtual Compton Scattering

The HERMES Collaboration, A. Airapetian

The first observation of an azimuthal cross--section asymmetry with respect to the charge of the incoming lepton beam is reported from a study of hard exclusive electroproduction o…

hep-ex2005★ 34 cited

Double hadron leptoproduction in the nuclear medium

The HERMES Collaboration, A. Airapetian

First measurement of double-hadron production in deep-inelastic scattering has been measured with the HERMES spectrometer at HERA using a 27.6 GeV positron beam with deuterium, nit…

hep-ex2005★ 54 cited

Subleading-twist effects in single-spin asymmetries in semi-inclusive deep-inelastic scattering on a longitudinally polarized hydrogen target

The HERMES Collaboration, A. Airapetian, :

Single-spin asymmetries in the semi-inclusive production of charged pions in deep-inelastic scattering from transversely and longitudinally polarized proton targets are combined to…

hep-ex2005★ 86 cited

First Measurement of the Tensor Structure Function of the Deuteron

The HERMES Collaboration, A. Airapetian

The \Hermes experiment has investigated the tensor spin structure of the deuteron using the 27.6 GeV/c positron beam of \Hera. The use of a tensor polarized deuteron gas target wit…

hep-ex2005★ 24 cited

Search for an exotic S=-2, Q=-2 baryon resonance at a mass near 1862 MeV in quasi-real photoproduction

HERMES Collaboration, A. Airapetian

A search for an exotic baryon resonance with has been performed in quasi-real photoproduction on a deuterium target through the decay channel $Ξ^- π^- \to Λπ^- π^- \to…

hep-ex2004★ 24 cited

CKM Results From CLEO

Karl M. Ecklund

I present recent CLEO measurements of inclusive semileptonic B decay spectra and the branching fraction. I also report preliminary results from a combined fit to spectral moments,…

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-ex2004★ 556 cited

Single-spin asymmetries in semi-inclusive deep-inelastic scattering on a transversely polarized hydrogen target

The HERMES Collaboration

Single-spin asymmetries for semi-inclusive electroproduction of charged pions in deep-inelastic scattering of positrons are measured for the first time with transverse target polar…

hep-ex2004★ 263 cited

Quark helicity distributions in the nucleon for up, down, and strange quarks from semi--inclusive deep--inelastic scattering

HERMES Collaboration, A. Airapetian

Polarized deep--inelastic scattering data on longitudinally polarized hydrogen and deuterium targets have been used to determine double spin asymmetries of cross sections. Inclusiv…

hep-ex2004★ 252 cited

Evidence for a narrow |S|=1 baryon state at a mass of 1528 MeV in quasi-real photoproduction

HERMES Collaboration, A. Airapetian

Evidence for a narrow baryon state is found in quasi-real photoproduction on a deuterium target through the decay channel p K^0_S --> p pi^+ pi^-. A peak is observed in the p K^0_S…

hep-ex2003★ 108 cited

Flavor decomposition of the sea quark helicity distributions in the nucleon from semi-inclusive deep-inelastic scattering

HERMES collaboration, A. Airapetian

Double-spin asymmetries of semi-inclusive cross sections for the production of identified pions and kaons have been measured in deep-inelastic scattering of polarized positrons on…

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★ 59 cited

The Q^2-Dependence of Nuclear Transparency for Exclusive Production

HERMES Collaboration, A. Airapetian

Exclusive coherent and incoherent electroproduction of the meson from H and N targets has been studied at the HERMES experiment as a function of coherence length (…

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-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…