Florian Bergmann
A5026107915- Quantum Chromodynamics and Particle Interactions
- Particle physics theoretical and experimental studies
- Nuclear physics research studies
- High-Energy Particle Collisions Research
- Optical Imaging and Spectroscopy Techniques
- Congenital Diaphragmatic Hernia Studies
- Elbow and Forearm Trauma Treatment
- Neonatal Respiratory Health Research
- Photodynamic Therapy Research Studies
- Photoacoustic and Ultrasonic Imaging
- Quantum, superfluid, helium dynamics
- Optical Polarization and Ellipsometry
- Shoulder Injury and Treatment
- Spectroscopy and Chemometric Analyses
- Orthopedic Surgery and Rehabilitation
- Pancreatic and Hepatic Oncology Research
- Spectroscopy Techniques in Biomedical and Chemical Research
- Infrared Thermography in Medicine
- Dark Matter and Cosmic Phenomena
- Calibration and Measurement Techniques
- Cancer, Hypoxia, and Metabolism
- Neuroendocrine Tumor Research Advances
- Neonatal Health and Biochemistry
- Nanoplatforms for cancer theranostics
- Bone fractures and treatments
Ludwig-Maximilians-Universität München
2006-2025
Universität Ulm
2021-2025
Institute for Laser Technology in Medicine and Measurement Technique
2016-2024
LMU Klinikum
2006-2023
Olgahospital
2023
University of Münster
2011-2020
München Klinik
2006-2019
Diabetesinstitut Heidelberg
2017
Helmholtz-Institute Ulm
2016
University Hospital Heidelberg
2015
We report on an exclusive and kinematically complete high-statistics measurement of the basic double-pionic fusion reaction pn→dπ(0)π(0) over full energy region ABC effect, a pronounced low-mass enhancement in ππ-invariant mass spectrum. The measurements, which cover also transition to conventional t-channel ΔΔ process, were performed with upgraded WASA detector setup at COSY. data reveal Abashian-Booth-Crowe effect be uniquely correlated Lorentzian dependence integral cross section....
Exclusive and kinematically complete high-statistics measurements of quasifree polarized $\stackrel{\ensuremath{\rightarrow}}{n}p$ scattering have been performed in the energy region narrow resonancelike structure ${d}^{*}$ with $I({J}^{P})=0({3}^{+})$, $M\ensuremath{\approx}2380\text{ }\text{ }\mathrm{MeV}$, $\mathrm{\ensuremath{\Gamma}}\ensuremath{\approx}70\text{ }\mathrm{MeV}$ observed recently double-pionic fusion channels...
Exclusive measurements of the quasifree $pn\ensuremath{\rightarrow}pp{\ensuremath{\pi}}^{0}{\ensuremath{\pi}}^{\ensuremath{-}}$ reaction have been performed by means $pd$ collisions at ${T}_{p}$ $=$ 1.2 GeV using wide angle shower apparatus (WASA) detector setup cooler synchrotron COSY (Institut f\"ur Kernphysik, J\"ulich). Total and differential cross sections obtained covering energy region $\sqrt{s}$ (2.35--2.46) GeV, which includes ABC effect its associated resonance structure. No...
New data on quasifree polarized neutron-proton scattering in the region of recently observed ${d}^{*}$ resonance structure are obtained by exclusive and kinematically complete high-statistics measurements with WASA at COSY. This paper details determination beam polarization, checks character process, all ${A}_{y}$ angular distributions new partial-wave analysis, which includes producing a pole ${}^{3}{D}_{3}\ensuremath{-}{}^{3}{G}_{3}$ coupled partial waves...
Exclusive measurements of the quasi-free $np \to np\pi^0\pi^0$ reaction have been performed by means $dp$ collisions at $T_d$ = 2.27 GeV using WASA detector setup COSY. Total and differential cross sections obtained covering energy region $\sqrt s$ (2.35 - 2.46) GeV, which includes ABC effect its associated $d^*(2380)$ resonance. Adding $d^*$ resonance amplitude to that for conventional processes leads a reasonable description data. The observed in total section is agreement with predictions...
Dairy products play an important role in our daily nutrition. As a turbid scattering medium with different kinds of particles and droplets, each alteration these components changes the properties milk. The goal this work is determination amount main components, fat droplets casein micelles, by understanding light propagation homogenized milk raw To provide absolute impact geometrical optical such as size distribution refractive index (RI) have to be examined. We determined reduced...
In this paper, we describe a method used to determine the optical properties, namely, effective scattering and absorption coefficients, employing an optimized three-dimensional-printed single integrating sphere. The paper consists of two parts, in Part 1, theoretical investigation measurement evaluation routine are presented. Using analytical numerical model for characterization sphere, errors caused by application non-ideal sphere (the one with ports or baffles) were investigated....
An exclusive measurement of the excitation function for dd->3Heppi- reaction was performed at Cooler Synchrotron COSY-Juelich with WASA-at-COSY detection system. The data were taken during a slow acceleration beam from 2.185 GeV/c to 2.400 crossing kinematic threshold eta meson production in dd->4He-eta 2.336 GeV/c. corresponding excess energy respect 4He-eta system varied -51.4MeV 22MeV. integrated luminosity experiment determined using dd->3Hen reaction. shape examined. No signal bound...
Based on theoretical investigations of the light propagation within an integrating sphere, we developed accurate method to determine optical properties scattering media using sphere-based setup. The takes into account exact sphere geometry as well different angular distributions reflected and transmitted from sample calibration standard. We tested our novelties successfully in theory with Monte Carlo simulations practice a 3D printed professionally coated sphere. As result, were able...
This study investigates the relationship between optical properties of articular cartilage with its biomechanical parameters. The absorption and reduced scattering coefficients cartilage, average maximum penetration depth, lateral spread, path length photons were estimated by measurements Monte Carlo simulation. equilibrium instantaneous moduli, initial fibrillar network, strain-dependent nonfibrillar network deformation-dependent permeability tissue multistep stress-relaxation measurement...
Background: The classification of fractures is necessary to ensure a reliable means communication for clinical interaction, research, and education. Distal humeral coronal plane shear (CSF) are very rare in the growing-age population, despite that multiple schemes exist. Objective: aim this study was assess inter- intra-rater reliability 4 most commonly used CSF classifications their role guiding treatment decisions everyday practice. Materials methods: 51 patients with were retrospectively...
We report on a high-statistics measurement of the most basic double pionic fusion reaction $\vec{n}p \to d\pi^0\pi^0$ over energy region $d^*(2380)$ resonance by use polarized deuteron beam and observing in quasifree scattering mode. The measurements were performed with WASA detector setup at COSY. data reveal substantial analyzing powers confirm conclusions about $d^*$ obtained from unpolarized measurements. also previous under complementary kinematic conditions.
Exclusive and kinematically complete measurements of the double pionic fusion to ${}^{3}\mathrm{He}$ have been performed in energy region so-called ABC effect, which denotes a pronounced low-mass enhancement $\ensuremath{\pi}\ensuremath{\pi}$-invariant mass spectrum. The experiments were carried out with WASA detector setup at COSY (the cooler synchrotron Forschungszentrum J\"ulich). Similar observations basic $pn\ensuremath{\rightarrow}d{\ensuremath{\pi}}^{0}{\ensuremath{\pi}}^{0}$ reaction...
Exclusive measurements of the quasi-free pn→ppπ− and pp→ppπ0 reactions have been performed by means pd collisions at Tp=1.2 GeV using WASA detector setup COSY. Total differential cross sections obtained covering energy region Tp=0.95–1.3GeV (s=2.3–2.46 GeV), which includes regions Δ(1232), ⁎N⁎(1440) ⁎d⁎(2380) resonance excitations. From these isoscalar single-pion production has extracted, for data existed so far only below Tp=1 GeV. We observe a substantial increase this section around 1...
Abstract Several animal models have been proposed to study the pathophysiology of congenital diaphragmatic hernia (CDH). Surgical induction CDH in fetal rabbits during pseudoglandular phase has shown induce severe pulmonary hypoplasia, but functional studies this model are scarce. We aimed measure neonatal impedance and related it severity lung hypoplasia. was surgically created at 23 days gestation. Following cesarean delivery term (31 days) pups were subjected measurement total capacity...
Exclusive and kinematically complete high-statistics measurements of the double pionic fusion reaction $dd \to ^4$He$\pi^0\pi^0$ have been performed in energy range 0.8 - 1.4 GeV covering thus region ABC effect, which denotes a pronounced low-mass enhancement $\pi\pi$-invariant mass spectrum. The experiments were carried out with WASA detector setup at COSY. Similar to observation basic $pn d \pi^0\pi^0$ reaction, data reveal correlation between effect resonance-like dependence total cross...
A method to correct for surface scattering in spatial frequency domain imaging (SFDI) is presented. The use of a modified analytical solution the radiative transfer equation allows calculation reflectance and phase rough semi-infinite geometry so that both can be applied precise retrieval bulk optical properties scattering. For validation method, phantoms with different roughness were produced. Contrarily, theory, it was possible dramatically reduce systematic errors due evaluation these...
Abstract Fetal tracheal occlusion (TO) is currently used to treat severe cases of congenital diaphragmatic hernia (DH). Clinical and experimental studies suggest an improved postnatal outcome, but lung tissue mechanics after TO have not been studied. We determined the effect on mechanical impedance components in a rabbit model for DH. At 23 days gestation (term = 31 days) either sham thoracotomy or defect was induced. DH fetuses were randomly assigned undergo 5 later TO. Fetuses delivered by...