V. Hannen

activity

20092026

most citedAn improved upper limit on the neutrino mass from a direct kinematic method by KATRIN

476 citations · 2.2k across the 58 of their papers we have counts for

collaborators

Showing 2014Show all

2 papers · 1 filter

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 $γ p \to p π^{0}$ are reported. The results are extracted from azimuthal asymmetries when a transversely polarized…

physics.atom-ph2014★ 63 cited

Observation of the hyperfine transition in lithium-like Bismuth $^{209} Bi^{80 +}$ : Towards a test of QED in strong magnetic fields

Matthias Lochmann, Raphael Jöhren, Christopher Geppert +21

We performed a laser spectroscopic determination of the $2 s$ hyperfine splitting (HFS) of Li-like $^{209} Bi^{80 +}$ and repeated the measurement of the $1 s$ HFS of H-like $^{…

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

Observation of the hyperfine transition in lithium-like Bismuth 209Bi80+: Towards a test of QED in strong magnetic fields

Observation of the hyperfine transition in lithium-like Bismuth $^{209} Bi^{80 +}$ : Towards a test of QED in strong magnetic fields