O. Steffen

发表

Photoproduction of π Mesons off Protons and Neutrons in the Second and Third Nucleon Resonance Region

M. Unverzagt, S. Wagner, C. Sfienti, 2020 .

Experimental study of the γp→K0Σ+, γn→K0Λ, and γn→K0Σ0 reactions at the Mainz Microtron

M. Unverzagt, S. Wagner, P. Achenbach, 2019 .

Photoproduction of π0 mesons off protons and neutrons in the second and third nucleon resonance regions

M. Unverzagt, C. Sfienti, M. Thiel, 2018, Physical Review C.

Helicity-dependent cross sections and double-polarization observable E in η photoproduction from quasifree protons and neutrons

M. Unverzagt, W. Meyer, S. Wagner, 2017, 1704.00649.

Insight into the Narrow Structure in η Photoproduction on the Neutron from Helicity-Dependent Cross Sections.

M. Unverzagt, W. Meyer, S. Wagner, 2016, Physical review letters.

Signatures of the d^{*}(2380) Hexaquark in d(γ,pn[over →]).

S. Wagner, P. Achenbach, C. Sfienti, 2019, Physical review letters.

Signatures of the d∗(2380) hexaquark in d(γ,p~n)

S. Wagner, P. Achenbach, C. Sfienti, 2020 .

Measurement of the beam-helicity asymmetry in photoproduction of π0η pairs on carbon, aluminum, and lead

M. Unverzagt, S. Wagner, P. Achenbach, 2019, Physics Letters B.

Measurement of the ω → π 0 e + e − and η → e + e − γ Dalitz decays with the A2 setup at the Mainz Microtron

M. Unverzagt, S. Wagner, G. Rosner, 2017 .

Measurement of the π0→e+e-γ Dalitz decay at the Mainz Microtron

M. Unverzagt, S. Wagner, G. Rosner, 2016, 1611.04739.

Single \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\pi ^0$$\end{document}π0 production off neutrons bound in deute

M. Unverzagt, S. Wagner, C. Meier, 2021, The European Physical Journal A.

High-statistics measurement of the η→3π0 decay at the Mainz Microtron

M. Unverzagt, S. Wagner, P. Achenbach, 2018, Physical Review C.

Measurement of the transverse target and beam-target asymmetries in η meson photoproduction at MAMI.

M. Unverzagt, W. Meyer, W. Gradl, 2014, Physical review letters.

Helicity-Dependent Cross Sections for the Photoproduction of π^{0} Pairs from Nucleons.

M. Unverzagt, W. Meyer, S. Wagner, 2020, Physical review letters.

First measurement of helicity-dependent cross sections in π0η photoproduction from quasi-free nucleons

M. Unverzagt, W. Meyer, S. Wagner, 2018, Physics Letters B.

Experimental study of the γp→π0ηp reaction with the A2 setup at the Mainz Microtron

M. Unverzagt, S. Wagner, P. Achenbach, 2018, Physical Review C.

Measurement of the helicity dependence for single π0\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\pi ^{0}$$\end{doc

P. Achenbach, M. Thiel, A. Braghieri, 2022, The European Physical Journal A.

First measurement of the polarization observable E and helicity-dependent cross sections in single π0 photoproduction from quasi-free nucleons

M. Unverzagt, W. Meyer, S. Wagner, 2017, 1705.07342.

Measurement of $π^0$ photoproduction on the proton at MAMI C

M. Unverzagt, W. Meyer, S. Wagner, 2015, 1506.08849.

Determination of the scalar polarizabilities of the proton using beam asymmetry $\Sigma_{3}$Σ3 in Compton scattering

M. Unverzagt, S. Wagner, M. Thiel, 2016, 1611.03769.

Experimental study of the $ \gamma p \rightarrow K^{0}\Sigma^{+}$γp→K0Σ+, $ \gamma n \rightarrow K^{0} \Lambda$γn→K0Λ, and $ \gamma n \rightarrow K^{0} \Sigma^{0}$γn→K0Σ0 reactions at the Mainz Microtron

M. Unverzagt, S. Wagner, P. Achenbach, 2018, The European Physical Journal A.

Study of η and η' Photoproduction at MAMI.

M. Unverzagt, S. Wagner, G. Rosner, 2017, Physical review letters.

Photon asymmetry measurements of γp → π0p forEγ = 320–650 MeV

M. Unverzagt, G. Rosner, P. Achenbach, 2016 .

T and F asymmetries in pi(0) photoproduction on the proton

A. Thomas, M. Unverzagt, W. Meyer, 2016 .

Threshold π0 photoproduction on transverse polarised protons at MAMI

A. Thomas, M. Unverzagt, W. Meyer, 2015 .

Measurement of Compton Scattering at MAMI for the Extraction of the Electric and Magnetic Polarizabilities of the Proton.

S. Wagner, P. Achenbach, M. Thiel, 2021, Physical review letters.

Measurements of double-polarized compton scattering asymmetries and extraction of the proton spin polarizabilities.

M. Unverzagt, W. Meyer, M. Thiel, 2014, Physical review letters.

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

S. Wagner, P. Achenbach, C. Sfienti, 2018, Physics Letters B.

Cross section for γn→π0n measured at the Mainz A2 experiment

M. Unverzagt, V. E. Tarasov, S. Wagner, 2019 .

First measurement of target and beam-target asymmetries in the γ p → π 0 η p reaction

M. Unverzagt, W. Meyer, W. Gradl, 2015, 1505.07963.

Measurement of the decay η′→π0π0η at MAMI

M. Unverzagt, S. Wagner, C. Sfienti, 2018, Physical Review D.

Photon asymmetry measurements of $\overrightarrow{\gamma}p \rightarrow \pi^{0} p$γ→p→π0p for $E_{\gamma}=$Eγ=320-650 MeV

M. Unverzagt, G. Rosner, P. Achenbach, 2016, 1606.07930.

A new measurement of the neutron detection efficiency for the NaI Crystal Ball detector

M. Unverzagt, S. Wagner, M. Bondy, 2015, 1502.07317.

Experimental study of the $\gamma p\rightarrow K^0\Sigma^+$, $\gamma n\rightarrow K^0\Lambda$, and $\gamma n\rightarrow K^0 \Sigma^0$ reactions at the Mainz Microtron

M. Unverzagt, S. Wagner, P. Achenbach, 2018 .

Measurement of the omega -> pi^0 e^+e^- and eta -> e^+e^-g Dalitz decays with the A2 setup at MAMI

M. Unverzagt, S. Wagner, G. Rosner, 2016, 1609.04503.

Extracting the spin polarizabilities of the proton by measurement of Compton double-polarization observables

M. Unverzagt, W. Meyer, S. Wagner, 2019, Physical Review C.

Determination of the scalar polarizabilities of the proton using beam asymmetry Σ 3 in Compton scattering

M. Unverzagt, S. Wagner, M. Thiel, 2016 .

A compact Time Projection Chamber for the Crystal Ball

W. Gradl, O. Steffen, M. Wolfes, 2016 .

Cross Section for γn → π 0 n measured at Mainz/A2

M. Unverzagt, P. Achenbach, M. Bondy, 2020 .

The End Point Tagger physics program at A2@MAMI

O. Steffen, 2017 .

Measurement of the decay $\eta^{\prime}\to\pi^{0}\pi^{0}\eta$ at MAMI

S. Wagner, M. Bondy, C. Sfienti, 2017, 1709.04230.

Measurement of the omega -> pi^0 e^+e^- and eta -> e^+e^-g Dalitz decays with the A2 setup at MAMI

S. Wagner, G. Rosner, M. Bondy, 2016, 1609.04503.

First Measurement Using Elliptically Polarized Photons of the Double-Polarization Observable E for γp→pπ^{0} and γp→nπ^{+}.

P. Achenbach, C. Sfienti, M. Thiel, 2024, Physical review letters.

Helicity dependent cross sections for the photoproduction of π0π± pairs from quasi-free nucleons

P. Achenbach, M. Thiel, A. Braghieri, 2023, Physics Letters B.

First measurement of polarisation transfer Cx′<

M. Guenther, P. Achenbach, M. Thiel, 2022, Physics Letters B.