H. Rohdjeß
A5113546242- Nuclear physics research studies
- Quantum Chromodynamics and Particle Interactions
- Particle physics theoretical and experimental studies
- Particle Accelerators and Free-Electron Lasers
- Particle accelerators and beam dynamics
- Nuclear Physics and Applications
- X-ray Spectroscopy and Fluorescence Analysis
- Superconducting Materials and Applications
- High-Energy Particle Collisions Research
- Radiation Therapy and Dosimetry
- Atomic and Molecular Physics
- Advanced NMR Techniques and Applications
- Particle Detector Development and Performance
- Neutrophil, Myeloperoxidase and Oxidative Mechanisms
- Acute Myeloid Leukemia Research
- Radiation Detection and Scintillator Technologies
- Cold Atom Physics and Bose-Einstein Condensates
- Cell Adhesion Molecules Research
- Quantum, superfluid, helium dynamics
- Polymer Nanocomposite Synthesis and Irradiation
- Atomic and Subatomic Physics Research
- Boron Compounds in Chemistry
- Radiation Effects in Electronics
- Diamond and Carbon-based Materials Research
- Dark Matter and Cosmic Phenomena
Epigenomics (Germany)
2023-2024
German Cancer Research Center
2023-2024
Heidelberg University
2023-2024
University Hospital Heidelberg
2024
Heidelberg University
2024
National Center for Tumor Diseases
2023-2024
University of Bonn
1996-2006
University of Michigan–Ann Arbor
2004-2005
Universität Hamburg
1993-1998
Indiana University Bloomington
1990-1993
Excitation functions of proton-proton elastic scattering cross sections have been measured in narrow steps for projectile momenta ${p}_{p}$ (energies ${T}_{p}$) from $1100$ to $3300\mathrm{MeV}/c$ (500 2500 MeV) the angular range $35\ifmmode^\circ\else\textdegree\fi{}\ensuremath{\le}{\ensuremath{\Theta}}_{\mathrm{c}.\mathrm{m}.}\ensuremath{\le}90\ifmmode^\circ\else\textdegree\fi{}$ with a detector providing...
Excitation functions A(N)(p(p),Theta(c.m.)) of the analyzing power in pp--> elastic scattering have been measured with a polarized atomic hydrogen target for projectile momenta p(p) between 1000 and 3300 MeV/ c. The experiment was performed angles 30 degrees </=Theta(c.m.)</=90 using recirculating beam proton storage ring COSY during acceleration. resulting excitation angular distributions high internal consistency significant impact on recent phase shift solution SAID SP99, particular, spin...
The vector and tensor polarizations of a deuteron beam have been measured using elastic deuteron-carbon scattering at 75.6 MeV deuteron-proton 270 MeV. After acceleration to 1170 inside the COSY ring, deuterons were checked by studying variety nuclear reactions cluster target ANKE magnet spectrometer placed an internal position storage ring. All these measurements consistent with absence depolarization during provide number secondary standards that can be used in subsequent experiments facility.
We have measured the $\mathrm{pd}$ elastic scattering with an electron-cooled beam of a proton storage ring and internal jet target operated HD gas. The accurately known H/D ratio is used to transfer precision existing $\mathrm{pp}$ data cross sections. Measurements were performed for energies between 200 300 MeV in angular range $11\ifmmode^\circ\else\textdegree\fi{}<~{\ensuremath{\Theta}}_{\mathrm{c}.\mathrm{m}.}<~ 29\ifmmode^\circ\else\textdegree\fi{}.$ results are compared...
At the Cooler Synchrotron COSY/J\"ulich spin-correlation parameters in elastic proton-proton ($pp$) scattering have been measured with a 2.11 GeV polarized proton beam and hydrogen atomic target. We report results for ${A}_{NN}$, ${A}_{SS}$, ${A}_{SL}$ c.m. angles between $30\ifmmode^\circ\else\textdegree\fi{}$ $90\ifmmode^\circ\else\textdegree\fi{}$. Our data on ${A}_{SS}$---the first measurement of this observable above 800 MeV---clearly disagrees predictions available $pp$ phase-shift...
Excitation functions of the spin correlation coefficients ${A}_{\mathit{NN}}({p}_{\mathrm{lab}},{\ensuremath{\theta}}_{c.m.}),{A}_{\mathit{SS}}({p}_{\mathrm{lab}},{\ensuremath{\theta}}_{c.m.})$, and ${A}_{\mathit{SL}}({p}_{\mathrm{lab}},{\ensuremath{\theta}}_{c.m.})$ have been measured with polarized proton beam Cooler Synchrotron an internal atomic target. Data were taken continuously during acceleration for momenta ${p}_{\mathrm{lab}}$ ranging from 1000 to 3300 MeV/c (kinetic energies...
We recently studied spin flipping of a $1.94\text{ }\text{ }\mathrm{GeV}/c$ vertically polarized proton beam at COSY in J\"ulich, Germany. swept an rf-dipole's frequency through rf-induced resonance to flip the beam's polarization direction. After determining resonance's frequency, we varied dipole's strength, range, and ramp time. At maximum optimum range time, measured spin-flip efficiency $99.3%\ifmmode\pm\else\textpm\fi{}0.1%$. This result indicates that rf dipole may allow efficient...
We recently studied the spin manipulation of $1.85\text{ }\text{ }\mathrm{GeV}/c$ vertically polarized deuterons stored in COSY cooler synchrotron. adiabatically swept an rf dipole's frequency through rf-induced resonance and observed its effect on deuterons' vector tensor polarizations. After optimizing crossing rate maximizing voltage, we measured spin-flip efficiencies $97\ifmmode\pm\else\textpm\fi{}1%$ $98.5\ifmmode\pm\else\textpm\fi{}0.3%$ two separate runs. also confirmed at higher...
The total cross section for pion production in the reaction pd\ensuremath{\rightarrow}pd${\mathrm{\ensuremath{\pi}}}^{0}$ has been measured bombarding energies from ${\mathit{T}}_{\mathit{p}}$=208.4 MeV to 294.6 MeV. This corresponds maximum momenta \ensuremath{\eta}=${\mathit{p}}_{\mathrm{\ensuremath{\pi}},\mathrm{c}.\mathrm{m}.}$/${\mathit{m}}_{\mathrm{\ensuremath{\pi}}}$c between 0.099 and 0.96. experiment was performed using an electron-cooled proton beam internal deuterium gas jet...
Abstract HIV-1 infection establishes a reservoir of long-lived cells with integrated proviral DNA that can persist despite antiretroviral therapy (ART). Some these at anytime be reactivated and reinitiate infection. The mechanisms governing latency the transcriptional regulation provirus are complex have not yet been sufficiently described. Here, we identified role for histone H3 citrullination, post-translational modification catalyzed by protein-arginine deiminase type-4 (PADI4), in...
Abstract Background Epstein-Barr virus (EBV)+ and EBV- primary CNS lymphomas (PCNSL) carry distinct mutational landscapes, but their transcriptional epigenetic profiles have not been integrated compared. This precludes further insights into pathobiology molecular differences, relevant for classification targeted therapy. Methods Twenty-three 15 EBV+ PCNSL, histologically classified as diffuse large B-cell lymphomas, were subjected to RNA-sequencing EPIC methylation arrays. Unsupervised...
Abstract Impaired differentiation a key feature of many hematopoietic malignancies. To decipher the molecular processes underlying malignant transformation, it is important to understand mechanisms regulating differentiation. Cell lines derived from transformed progenitors or leukemia patients have proven be valuable model systems for mechanistic investigations hematopoiesis. In present work, we investigated cell-intrinsic capacity interleukin 3 (IL-3) dependent murine myeloid progenitor...
The EDDA experiment is designed to study p + excitation functions with high energy resolution and narrow step size in the kinetic range from 250 MeV 2500 at Cooler Synchrotron COSY. Measurements during accelertion phase conjunction internal targets will allow achieve a fast precise variation. Prototypes of detector elements fiber target have been extensively tested proton electron beams; performance trigger efficiency studied Monte Carlo simulations. In this contribution, results concerning...