activity
20122026
most citedWell-established nucleon resonances revisited by double-polarization measurements

68 citations · 550 across the 39 of their papers we have counts for

collaborators
Showing nucl-exShow all

15 papers · 1 filter

nucl-ex2025

Measurement of the Total Compton Scattering Cross Section between 6.5 and 11 GeV

GlueX Collaboration, F. Afzal, C. S. Akondi +148

The total cross section for Compton scattering off atomic electrons, , was measured using photons with energies between 6.5 and 11.1 GeV incident on a Be t…

nucl-ex2025

First Measurement of Polarized Photoproduction Cross Section

GlueX Collaboration, F. Afzal, C. S. Akondi +149

We measure for the first time the differential photoproduction cross section of the meson at an average photon beam energy of 8.5~GeV, using data with an integr…

nucl-ex2024

Measurement of Spin-Density Matrix Elements in photoproduction

F. Afzal, C. S. Akondi, M. Albrecht +146

We measure the spin-density matrix elements (SDMEs) of the in the photoproduction reaction with the GlueX experiment in Hall D at Jefferson…

nucl-ex2024★ 6 cited

Upper Limit on the Photoproduction Cross Section of the Spin-Exotic

GlueX Collaboration, F. Afzal, C. S. Akondi +147

The spin-exotic hybrid meson is predicted to have a large decay rate to the final state. Using 76.6~pb of data collected with the GlueX detector, we meas…

nucl-ex2023

Evaluation of the E2/M1 ratio in the transition from the reaction

E. Mornacchi, P. Pedroni, F. Afzal +59

A new data set for the helicity-dependent differential cross section of the single-meson photoproduction reaction was obtained for the photon energy interval 150-4…

nucl-ex2023★ 16 cited

Measurement of Spin-Density Matrix Elements in Production with a Linearly Polarized Photon Beam at

GlueX Collaboration, S. Adhikari, F. Afzal +150

The GlueX experiment at Jefferson Lab studies photoproduction of mesons using linearly polarized photons impinging on a hydrogen target which is contained within…

nucl-ex2022★ 4 cited

Polarization observables in double neutral pion photoproduction

TAPS Collaboration, T. Seifen, J. Hartmann +73

Measurements of target asymmetries and double-polarization observables for the reaction are reported. The data were taken with the CBELSA/TAPS experiment at the ELS…

nucl-ex2021★ 11 cited

Observation of a structure in the M invariant mass distribution near 1700 MeV/ in the reaction

V. Metag, M. Nanova, J. Hartmann +74

The reaction has been studied with the CBELSA/TAPS detector at the electron stretcher accelerator ELSA in Bonn for incident photon energies from threshold…

nucl-ex2020★ 20 cited

Observation of the Cusp in the New Precise Beam Asymmetry Data for

TAPS Collaboration

Data on the beam asymmetry in the photoproduction of mesons off protons are reported for tagged photon energies from 1130 to 1790 MeV (mass range from 1748 MeV to …

nucl-ex2019★ 2 cited

Measurement of the Helicity Asymmetry for the reaction

TAPS collaboration, M. Gottschall, F. Afzal +66

A measurement of the double-polarization observable for the reaction is reported. The data were taken with the CBELSA/TAPS experiment at the ELSA facility in Bonn…

nucl-ex2016★ 35 cited

Momentum dependence of the imaginary part of the - and -nucleus optical potential

S. Friedrich, M. Nanova, V. Metag +57

The photoproduction of and mesons off carbon and niobium nuclei has been measured as a function of the meson momentum for incident photon energies of 1.2-2.9 GeV at…

nucl-ex2016★ 37 cited

Determination of the real part of the η'-Nb optical potential

M. Nanova, S. Friedrich, V. Metag +51

The excitation function and momentum distribution of η' mesons have been measured in photoproduction off 93^Nb in the energy range of 1.2-2.9 GeV. The experiment has been performed…

nucl-ex2016★ 11 cited

Photon asymmetry measurements of for E=320650 MeV

S. Gardner, D. Howdle, M. H. Sikora +97

High statistics measurements of the photon asymmetry for the pp reaction have been made in the center of mass energy range W=1214-145…

nucl-ex2014★ 31 cited

The N(1520) 3/2- helicity amplitudes from an energy-independent multipole analysis based on new polarization data on photoproduction of neutral pions

J. Hartmann, H. Dutz, A. V. Anisovich +74

New data on the polarization observables T, P, and H for the reaction are reported. The results are extracted from azimuthal asymmetries when a transversely polarized…

nucl-ex2012★ 68 cited

Well-established nucleon resonances revisited by double-polarization measurements

A. Thiel, A. V. Anisovich, D. Bayadilov +64

The first measurement is reported of the double-polarization observable G in photoproduction of neutral pions off protons, covering the photon energy range from 620 to 1120 MeV and…