J. Hartmann

activity

19952023

ϕ

Photoproduction at HERA

103 citations · 838 across the 33 of their papers we have counts for

collaborators

Showing 2015Show all

3 papers · 1 filter

nucl-ex2015★ 30 cited

The polarization observables T, P, and H and their impact on $γ p \to p π^{0}$ multipoles

J. Hartmann, H. Dutz, A. V. Anisovich +76

Data on the polarization observables T, P, and H for the reaction $γ p \to p π^{0}$ are reported. Compared to earlier data from other experiments, our data are more precise and extend t…

nucl-ex2015★ 14 cited

Measurement of double polarisation asymmetries in $ω$ -photoproduction

H. Eberhardt, T. C. Jude, H. Schmieden +72

The first measurements of the beam-target-helicity-asymmetries $E$ and $G$ in the photoproduction of $ω$ -mesons off protons at the CBELSA/TAPS experiment are reported. $E$ ( $G$ ) wa…

nucl-ex2015★ 1 cited

Evidence for $Δ (2200) 7/ 2^{-}$ from photoproduction and consequence for chiral-symmetry restoration at high mass

A. V. Anisovich, V. Burkert, J. Hartmann +6

We report a partial-wave analysis of new data on the double-polarization variable $E$ for the reactions $γ p \to π^{+} n$ and $γ p \to π^{0} p$ and of further data published earlier. The a…

The polarization observables T, P, and H and their impact on γp→pπ0 multipoles

Measurement of double polarisation asymmetries in ω-photoproduction

Evidence for Δ(2200)7/2− from photoproduction and consequence for chiral-symmetry restoration at high mass

The polarization observables T, P, and H and their impact on $γ p \to p π^{0}$ multipoles

Measurement of double polarisation asymmetries in $ω$ -photoproduction

Evidence for $Δ (2200) 7/ 2^{-}$ from photoproduction and consequence for chiral-symmetry restoration at high mass