papers

Publications (16)

nucl-ex2015

Measurement of double polarisation asymmetries in -photoproduction

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

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

nucl-ex2014

First measurement of the helicity asymmetry for in the resonance region

M. Gottschall, A. V. Anisovich, B. Bantes +64

The first measurement of the helicity dependence of the photoproduction cross section of single neutral pions off protons is reported for photon energies from 600 to 2300\,MeV, cov…

nucl-ex2014

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 polariz…

nucl-ex2016

Double-polarization observable G in neutral-pion photoproduction off the proton

A. Thiel, H. Eberhardt, M. Lang +69

This paper reports on a measurement of the double-polarization observable G in photoproduction off the proton using the CBELSA/TAPS experiment at the ELSA accelerator in Bon…

nucl-ex2016

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 a…

physics.ins-det2020

The BGOOD experimental setup at ELSA

S. Alef, P. Bauer, D. Bayadilov +58

The BGOOD experiment at the ELSA facility in Bonn has been commissioned within the framework of an international collaboration. The experiment pursues a systematic investigation of…

nucl-ex2019

New data on with polarized photons and protons and their implications for decays

J. Müller, J. Hartmann, M. Grüner +86

The polarization observables , and in photoproduction of mesons off protons are measured for photon energies from threshold to MeV (), 2280 MeV ($…

nucl-ex2017

Photoproduction of eta mesons from the neutron: cross sections and double polarization observable E

L. Witthauer, M. Dieterle, F. Afzal +70

Photoproduction of mesons from neutrons} \abstract{Results from measurements of the photoproduction of mesons from quasifree protons and neutrons are summarized. The expe…

nucl-ex2025

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…

nucl-ex2021

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 thresho…

nucl-ex2015

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

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

Data on the polarization observables T, P, and H for the reaction are reported. Compared to earlier data from other experiments, our data are more precise and extend…

nucl-ex2015

Strangeness Photoproduction at the BGO-OD Experiment

T. C. Jude, S. Alef, D. Bayadilov +61

BGO-OD is a newly commissioned experiment to investigate the internal structure of the nucleon, using an energy tagged bremsstrahlung photon beam at the ELSA electron facility. The…

nucl-ex2019

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 Bo…

nucl-ex2018

The η'-carbon potential at low meson momenta

M. Nanova, S. Friedrich, V. Metag +58

The production of mesons in coincidence with forward-going protons has been studied in photon-induced reactions on C and on a liquid hydrogen (LH) target for…

nucl-ex2016

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 performe…

physics.ins-det2012

Technical Design Report for the: PANDA Micro Vertex Detector

PANDA Collaboration, W. Erni, I. Keshelashvili +454

This document illustrates the technical layout and the expected performance of the Micro Vertex Detector (MVD) of the PANDA experiment. The MVD will detect charged particles as clo…