A. Käser

activity

20172020

most citedInsight into the narrow structure in {\boldmath{

η

}}-photoproduction on the neutron from helicity dependent cross sections

31 citations · 40 across the 2 of their papers we have counts for

collaborators

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7 papers · 1 filter

nucl-ex2020★ 9 cited

Helicity-dependent cross sections for the photoproduction of $π^{0}$ pairs from nucleons

M. Dieterle, L. Witthauer, A. Fix +88

The double-polarization observable $E$ and helicity-dependent cross sections $σ_{1/2}$ , $σ_{3/2}$ have been measured for the photoproduction of $π^{0}$ pairs off quasi-free protons a…

nucl-ex2019

Signatures of the $d^{*} (2380)$ hexaquark in d( $γ$ , $p n$ )

M. Bashkanov, D. P. Watts, S. J. D. Kay +74

We report a measurement of the spin polarisation of the recoiling neutron in deuterium photodisintegration, utilising a new large acceptance polarimeter within the Crystal Ball at…

nucl-ex2019

New data on $γ p \to η p$ with polarized photons and protons and their implications for $N^{*} \to N η$ decays

J. Müller, J. Hartmann, M. Grüner +86

The polarization observables $T, E, P, H$ , and $G$ in photoproduction of $η$ mesons off protons are measured for photon energies from threshold to $W = 2400$ MeV ( $T$ ), 2280 MeV ($E…

nucl-ex2019

Spin polarizabilities of the proton by measurement of Compton double-polarization observables

D. Paudyal, P. P. Martel, G. M. Huber +90

The Compton double-polarization observable $Σ_{2 z}$ has been measured for the first time in the $Δ (1232)$ resonance region using a circularly polarized photon beam incident on a lo…

nucl-ex2018

First measurement of helicity-dependent cross sections in pi0-eta photoproduction from quasi-free nucleons

A. Käser, M. Dieterle, L. Witthauer +80

The helicity-dependent cross sections for the photoproduction of $π^{0} η$ pairs have been measured for the first time. The experiment was performed at the tagged photon facility of t…

nucl-ex2018

Deuteron photodisintegration by polarized photons in the region of the $d^{*} (2380)$

M. Bashkanov, S. Kay, D. P. Watts +70

We report the first large-acceptance measurement of the beam-spin asymmetry for deuteron photodisintegration ( $γ d \to p n$ ) in the photon energy range $400 < E_{γ} < 630$ ~MeV. The mea…

Helicity-dependent cross sections for the photoproduction of π0 pairs from nucleons

Signatures of the d∗(2380) hexaquark in d(γ,pn)

New data on γ​p​→ηp with polarized photons and protons and their implications for N∗→Nη decays

Spin polarizabilities of the proton by measurement of Compton double-polarization observables

First measurement of helicity-dependent cross sections in pi0-eta photoproduction from quasi-free nucleons

Deuteron photodisintegration by polarized photons in the region of the d∗(2380)

Helicity-dependent cross sections for the photoproduction of $π^{0}$ pairs from nucleons

Signatures of the $d^{*} (2380)$ hexaquark in d( $γ$ , $p n$ )

New data on $γ p \to η p$ with polarized photons and protons and their implications for $N^{*} \to N η$ decays

Deuteron photodisintegration by polarized photons in the region of the $d^{*} (2380)$