D. Walther
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View article: Efficacy and safety of donor lymphocyte infusion after allogeneic hematopoietic stem cell transplantation in pediatric patients
Efficacy and safety of donor lymphocyte infusion after allogeneic hematopoietic stem cell transplantation in pediatric patients Open
This study evaluates the efficacy and safety of donor lymphocyte infusion (DLI) after allogeneic hematopoietic stem cell transplantation (HSCT) in pediatric patients. We describe the long-term use of preemptive, prophylactic and therapeuti…
View article: Polarization observables in double neutral pion photoproduction
Polarization observables in double neutral pion photoproduction Open
Measurements of target asymmetries and double-polarization observables for the reaction $γp\to pπ^0π^0$ are reported. The data were taken with the CBELSA/TAPS experiment at the ELSA facility (Bonn University) using the Bonn frozen-spin but…
View article: Observation of a structure in the M$_{p\eta}$ invariant mass distribution near 1700 MeV in the $\mathbf{\gamma p \rightarrow p \pi^0 \eta} $ reaction
Observation of a structure in the M$_{p\eta}$ invariant mass distribution near 1700 MeV in the $\mathbf{\gamma p \rightarrow p \pi^0 \eta} $ reaction Open
The reaction $\gamma p \rightarrow p \pi^0 \eta$ has been studied with the
CBELSA/TAPS detector at the electron stretcher accelerator ELSA in Bonn for
incident photon energies from threshold up to 3.1 GeV. This paper has been
motivated by …
View article: Measurement of the Helicity Asymmetry $E$ for the reaction $ γp\to π^0 p$
Measurement of the Helicity Asymmetry $E$ for the reaction $ γp\to π^0 p$ Open
A measurement of the double-polarization observable $E$ for the reaction $γp\to π^0 p$ is reported. The data were taken with the CBELSA/TAPS experiment at the ELSA facility in Bonn using the Bonn frozen-spin butanol (C$_4$H$_9$OH) target, …
View article: Technical design report for the $\overline{{\rm{P}}}\mathrm{ANDA}$ Barrel DIRC detector
Technical design report for the $\overline{{\rm{P}}}\mathrm{ANDA}$ Barrel DIRC detector Open
This documents describes the technical design and the expected performance of the Barrel DIRC detector for the PANDA experiment. The Barrel DIRC will provide hadronic charged particle identification in the polar angle range of $22^\circ$ t…
View article: Strangeness photoproduction at the BGO-OD experiment
Strangeness photoproduction at the BGO-OD experiment Open
The BGO-OD experiment at the ELSA accelerator facility uses an energy tagged bremstrahlung photon beam to investigate the excitation spectrum of the nucleon. The setup consists of a highly segmented BGO calorimeter surrounding the target, …
View article: Feasibility studies of time-like proton electromagnetic form factors at PANDA at FAIR
Feasibility studies of time-like proton electromagnetic form factors at PANDA at FAIR Open
Simulation results for future measurements of electromagnetic proton form factors at \PANDA (FAIR) within the PandaRoot software framework are reported. The statistical precision with which the proton form factors can be determined is esti…
View article: Study of doubly strange systems using stored antiprotons
Study of doubly strange systems using stored antiprotons Open
Bound nuclear systems with two units of strangeness are still poorly known despite their importance for many strong interaction phenomena. Stored antiprotons beams in the GeV range represent an unparalleled factory for various hyperon-ant…
View article: The Late Carboniferous Schönfeld-Altenberg Depression on the NW margin of the Bohemian Massif (Germany/Czech Republic): volcanosedimentary and magmatic evolution
The Late Carboniferous Schönfeld-Altenberg Depression on the NW margin of the Bohemian Massif (Germany/Czech Republic): volcanosedimentary and magmatic evolution Open
The Altenberg-Teplice Volcanic Complex (ATVC) exposed on both sides of the German-Czech border in the Erzgebirge/ Krušné hory Mts. is one of the earliest late-Variscan to post-Variscan volcanic centres in Europe.The ATVC features an early …
View article: Commissioning and initial experimental program of the BGO-OD experiment at ELSA
Commissioning and initial experimental program of the BGO-OD experiment at ELSA Open
BGO-OD is a new meson photoproduction experiment at the ELSA facility of Bonn University. It aims at the investigation of non strange and strange baryon excitations, and is especially designed to be able to detect weekly bound meson-baryon…
View article: Strangeness Photoproduction at the BGO-OD Experiment
Strangeness Photoproduction at the BGO-OD Experiment Open
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 setup consists of a highly segmented BGO calorimeter surro…
View article: Measurement of double polarisation asymmetries in ω -photoproduction
Measurement of double polarisation asymmetries in ω -photoproduction Open
The first measurements of the beam-target-helicity-asymmetries $E$ and $G$ in the photoproduction of $\omega$-mesons off protons at the CBELSA/TAPS experiment are reported. $E$ ($G$) was measured using circularly (linearly) polarised photo…
View article: Experimental access to Transition Distribution Amplitudes with the PANDA experiment at FAIR
Experimental access to Transition Distribution Amplitudes with the PANDA experiment at FAIR Open
Baryon-to-meson Transition Distribution Amplitudes (TDAs) encoding valuable new information on hadron structure appear as building blocks in the collinear factorized description for several types of hard exclusive reactions. In this paper,…
View article: Erratum: Modification of the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>ω</mml:mi></mml:math>-Meson Lifetime in Nuclear Matter [Phys. Rev. Lett.<b>100</b>, 192302 (2008)]
Erratum: Modification of the-Meson Lifetime in Nuclear Matter [Phys. Rev. Lett.<b>100</b>, 192302 (2008)] Open
Received 22 April 2015DOI:https://doi.org/10.1103/PhysRevLett.114.199903© 2015 American Physical Society
View article: The BGO Calorimeter of BGO-OD Experiment
The BGO Calorimeter of BGO-OD Experiment Open
The BGO Rugby Ball is a large solid angle electromagnetic calorimeter now installed in the ELSA Facility in Bonn. The BGO is operating in the BGO-OD experiment aiming to study meson photoproduction off proton and neutron induced by a Brems…