V. Kubarovsky

Measurement of single- and double-polarization observables in the photoproduction of π + π − meson pairs off the proton using CLAS at Jefferson Laboratory

P. Roy, S. Cao, V. Credé, E. Klempt et autres

The photoproduction of ${\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$ meson pairs off the proton has been studied in the reaction $\ensuremath{\gamma}p\ensuremath{\rightarrow}p{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$ using the CEBAF Large Acceptance Spectrometer (CLAS) and the frozen-spin target (FROST) in Hall B at the Thomas Jefferson National Accelerator Facility. For the first time, …

us, ru, fr, it, gb, de, ec, am, Ghana, uz, kr, cn (code pays fourni par la source)

Photoproduction of two charged pions off protons in the resonance region

A. Sarantsev, E. Klempt, K. Nikonov, Patrick Achenbach et autres

Photoproduction of charged pions pairs off protons is studied within the invariant masses of the final state hadrons from 1.6 to 2.4 GeV at the Thomas Jefferson National Accelerator Facility with the CLAS detector. The total and differential cross sections and spin-density …

ru, de, us, fr, Ghana, it, gb, am, ec, uz, kr (code pays fourni par la source)

First observation of correlations between spin and transverse momenta in back-to-back dihadron production at CLAS12

H. Avakian, T. B. Hayward, A.M. Kotzinian, W. R. Armstrong et autres

We report the first measurements of deep inelastic scattering spin-dependent azimuthal asymmetries in back-to-back dihadron electroproduction, where two hadrons are produced in opposite hemispheres along the z-axis in the center-of-mass frame, with the first hadron produced in the current-fragmentation region and the …

Observation of Beam Spin Asymmetries in the Process $e p \\rightarrow e \\pi^{+}\\pi^{-}X$ with CLAS12

T.B. Hayward, C. Dilks, A. Vossen, S. Adhikari et autres

fr (code pays fourni par la source)

Beam-spin asymmetries from semi-inclusive pion electroproduction

W. Gohn, H. Avakian, K. Joo, M. Ungaro et autres

We have measured the moment ${A}_{LU}^{\mathrm{sin}\ensuremath{\phi}}$ corresponding to the polarized electron beam-spin asymmetry in semi-inclusive deep inelastic scattering. ${A}_{LU}^{\mathrm{sin}\ensuremath{\phi}}$ is a twist-3 quantity providing information about quark-gluon correlations. Data were taken with the CLAS Spectrometer at Jefferson Lab using a 5.498 GeV …

us, it, gb, fr, cl, am, ru, kr (code pays fourni par la source)