B Vernarsky

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We report the first measurement of the transverse momentum dependence of double-spin asymmetries in semi-inclusive production of pions in deep-inelastic scattering off the longitudinally polarized proton. Data have been obtained using a polarized electron beam of 5.7 GeV with the CLAS detector at the Jefferson Lab (JLab). Modulations of single spin(More)
We report the measurement of near-threshold neutral pion electroproduction cross sections and the extraction of the associated structure functions on the proton in the kinematic range Q 2 from 2 to 4.5 GeV 2 and W from 1.08 to 1.16 GeV. These measurements allow us to access the dominant pion-nucleon s-wave multipoles E 0+ and S 0+ in the near-threshold(More)
We have measured cross sections for the γ(3)He → pd reaction at photon energies of 0.4-1.4 GeV and a center-of-mass angle of 90°. We observe dimensional scaling above 0.7 GeV at this center-of-mass angle. This is the first observation of dimensional scaling in the photodisintegration of a nucleus heavier than the deuteron.
  • Research Showcase, Cmu, B Dey, Curtis A Meyer, Michael E Mccracken, C A Meyer +25 others
  • 2015
High-statistics measurements of differential cross sections and recoil polarizations for the reaction γp → K + 0 have been obtained using the CLAS detector at Jefferson Lab. We cover center-of-mass energies (√ s) from 1.69 to 2.84 GeV, with an extensive coverage in the K + production angle. Independent measurements were made using the K + pπ − (γ) and K +(More)
We measured the ratios of electroproduction cross sections from a proton target for three exclusive meson-baryon final states: ΛK(+), pπ(0), and nπ(+), with the CLAS detector at Jefferson Lab. Using a simple model of quark hadronization, we extract qq creation probabilities for the first time in exclusive two-body production, in which only a single qq pair(More)
  • B Dey, Gerard P Gilfoyle, C Meyer, M Bellis, M Mccracken, M Williams +144 others
  • 2014
High-statistics measurements of differential cross sections and recoil polarizations for the reaction γp → K + 0 have been obtained using the CLAS detector at Jefferson Lab. We cover center-of-mass energies (√ s) from 1.69 to 2.84 GeV, with an extensive coverage in the K + production angle. Independent measurements were made using the K + pπ − (γ) and K +(More)
We propose to make a high-precision measurement of the neutron's magnetic form factor, M exists in this kinematic range and the existing data have large systematic uncertainties. In the proposed experiment, systematic errors are greatly reduced by the use of the " ratio " method in which G n M is extracted from the ratio of neutron-coincident to(More)
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