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Andreas Burkert (LMU), Stephan Paul (TU-München)02/12/2019, 08:50
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Dr Jeanette Lorenz (LMU)02/12/2019, 09:00
Although measurements confirm the Standard Model of particle physics
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(SM) to high precision until now, multiple shortcomings motivate the
search for physics beyond the SM. For example, the SM does not offer a
candidate particle to explain (cold) dark matter (DM). A comprehensive
search program is carried out by direct and indirect detection
experiments, but also at particle colliders like the... -
Frank Eisenhauer (MPE)02/12/2019, 09:25
The last years have seen a revolution in Optical/Infrared Interferometry. The GRAVITY instrument at the VLTI is now routinely providing milli-arcsecond resolution imaging and micro-arcsecond astrometry, for objects which are order of magnitudes fainter than what has been possible before. In our presentation we give an overview of the GRAVITY discoveries in Galactic Center Black Hole and Active...
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Dr Linda Blot02/12/2019, 09:50
Ongoing and future galaxy surveys are providing a cartography of the distribution of matter in the universe over large volumes and across long spans of time. This allows us to learn about cosmology through the study of the formation and evolution of structures. In this talk I will outline the potential constraining power and the challenges posed by the analysis of large scale structure data.
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Lothar Oberauer (TUM)02/12/2019, 10:45
The JUNO (Jiangmen Underground Neutrino Observatory) project in China is aiming for high precision measurements in the field of low energy neutrino and astroparticle physics. Main goals are the determination of the neutrino mass ordering and the accurate measurement of neutrino oscillation parameters by high resolution spectroscopy of reactor neutrinos. In addition solar neutrino spectroscopy,...
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Sebastian Stammler (LMU)02/12/2019, 11:10
Radial drift of dust particles is a long-standing problem in planet formation. Due to its pressure gradient, gas in protoplanetary disks is orbiting the central star with sub-Keplerian velocities. Dust particles, on the other hand, try to orbit with Keplerian velocities. They feel a headwind from the gas, lose angular momentum, and drift towards the star on short timescales.
Observations of...
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Dr Ariel Sanchez (MPE)02/12/2019, 11:35
I present the results of a re-analysis of anisotropic galaxy clustering measurements from the Baryon Oscillation Spectroscopic Survey (BOSS), demonstrating that they provide independent cosmological constraints that are comparable to other low-redshift probes. These data thus represent an independent tool to probe the cosmology of the low-redshift Universe. I quantify the agreement between...
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Dr Rhea-Silvia Remus (USM)02/12/2019, 14:00
Recently, several massive structures at redshifts as high as z=8 have been discovered, many of which are thought to be the progenitors of todays most massive clusters of galaxies. The star formation rates observed in these "protoclusters" is much higher than expected, and the origin of these extreme star bursts is currently a matter of heavy debate. Using the power of the state-of-the-art...
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Dr Naveen Naveen Yadav02/12/2019, 14:25
The results of one-dimensional stellar evolution models depend on recipes for convection, mixing, and diffusion deep inside the stars. Three-dimensional simulations are required to make more reliable models that are independent of the choice of these recipes. In addition, the three-dimensional models show asymmetries which may aid the subsequent neutrino driven explosion. We have simulated...
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Danny van Dyk (TU München)02/12/2019, 14:50
The present tensions between theory predictions and measurements in
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semileptonic decays of bottom hadrons have sparked widespread interest
as possible indicators of Physics beyond the Standard Model. At the same
time, these tensions motivate thorough checks of the Standard Model
predictions, in terms of both methods and inputs. In this presentation I will
discuss recent and ongoing... -
Reinhard Genzel (MPE)02/12/2019, 15:15
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Prof. Erich Sackmann (LMU)02/12/2019, 16:10
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Dr Matthias Morasch (Scanlab)02/12/2019, 16:20
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Dr Torsten Enßlin (MPA)03/12/2019, 09:00
Information field theory (IFT) describes probabilistic image reconstruction from incomplete and noisy data. Based on field theoretical concepts IFT provides optimal methods to generate images exploiting all available information. IFT algorithms can be regarded as interpretable neural networks, with a design determined by the physical knowledge on the observed system. Applications in...
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Dr Philipp Eller03/12/2019, 09:25
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Andreas Rappelt (TUM)03/12/2019, 09:50
The theoretical interpretation of dark matter experiments is hindered by uncertainties of the dark matter density and velocity distribution inside the Solar System. In order to quantify those uncertainties, we present a parameter that characterizes the deviation of the true velocity distribution from the Maxwell-Boltzmann form. This allows us to bracket, in a model independent way, the impact...
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Dr Ioannis Lavdas (LMU)03/12/2019, 10:15
Motivated by the holographic duality between a certain class of three-dimensional superconformal theories and type IIB Supergravity on anti de-Sitter warped backgrounds, I will present a new mechanism through which the lowest-lying graviton in the four dimensional anti de-Sitter bulk can become slightly massive. This is a string theory embedding of massive anti de-Sitter gravity and it will be...
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Dr Angnis Schmidt-May (MPP)03/12/2019, 11:00
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Dr Elisa Chisari (University of Oxford)03/12/2019, 11:25
Two phenomena contribute to correlating galaxy shapes across the Universe: the deviation of photons from a straight path due to the spacetime curvature ("gravitational lensing”), and tidal interactions (“intrinsic alignments”). Modelling both accurately is crucial to obtaining unbiased constraints on the cosmological model from forthcoming surveys, particularly in the context of elucidating...
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03/12/2019, 12:05
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Mara Salvato (MPE)03/12/2019, 14:00
eROSITA was successfully launched on board the Russian-German "Spectrum-Roentgen-Gamma" (SRG) satellite on July 13th 2019. With this instrument we want to: 1) detect the hot intergalactic medium of more than 100,000 galaxy clusters and groups and the hot gas in filaments between clusters to map out the large scale structure of the Universe for the study of cosmic structure evolution; 2) detect...
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Alejandro Ibarra (TUM)03/12/2019, 14:25
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Dr Joshua Moody03/12/2019, 14:50
AWAKE is an experimental program that uses a 400 GeV proton bunch from CERN SPS to drive GV/m scale wakefields in a photoionized rubidium plasma with a density on the order of 10^14 /cm^3. Since the proton bunch's longitudinal scale is greater than 100 times the plasma wavelength, the experiment relies on seeded self modulation (SSM) of the proton bunch to effectively drive wakefields. In...
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Mr Robert Glas (MPA)03/12/2019, 15:15
I will report on our recent comparison of self-consistent, time-dependent core-collapse supernova simulations in three spatial dimensions.
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To this end, we performed calculations with a fully multidimensional neutrino-transport scheme and the ray-by-ray-plus approximation.
I will also discuss the implications on the lepton-number emission self-sustained asymmetry (LESA). -
Hermann Wolter (LMU)03/12/2019, 16:10
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Andrzej J. Buras (Technical University Munich)03/12/2019, 16:20
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Dr Sebastian Zell (EPFL)03/12/2019, 16:30
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Harald Lesch (LMU)03/12/2019, 19:15
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Dr Sebastian Grandis04/12/2019, 09:00
X-ray emission from the hot gas contained in galaxy clusters has long been established as a reliable method to selected large and clean samples of galaxy clusters. Utilising such samples to constrain the density and amplitude of fluctuation of matter in the Universe, as well as the evolution of Dark Energy, however, require to overcome several observational challenges as well as to control...
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Thomas Lück (LMU)04/12/2019, 09:25
After several years of construction, the Belle II experiment at the SuperKEKB accelerator in Tsukuba, Japan has successfully started taking data for physics analyses this year. With a sample of 50 times more e+e- collision events than its predecessor to be collected in the next few years, Belle II will be able to search for physics beyond the standard model with unprecedented precision in many...
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Dr Hee Sok Chung (TUM)04/12/2019, 09:40
Production of heavy quarkonia is a multiscale problem that is sensitive to different behaviors of strong interaction at various distances. Effective field theory methods such as pNRQCD provide factorization formalisms that let us separate quantities that depend on different scales. Based on the pNRQCD factorization formalism, we study the production cross section of heavy quarkonia in lepton...
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Bernhard Hohlweger (TUM)04/12/2019, 09:55
Pioneering studies by the ALICE Collaboration demonstrated the potential of employing femtoscopy to investigate and constrain baryon-baryon and baryon-meson interactions with unprecedented precision. This kind of interactions is particularly interesting since it is closely connected to the physics of neutron stars. In particular, one of the plausible hypotheses about the content of neutron...
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Ivan Vorobyev (TUM)04/12/2019, 10:40
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Dr Alexandre Barreira (MPA)04/12/2019, 10:55
The cosmic large-scale distribution of matter encodes a wealth of information about our Universe. In this talk, I will show results on the observational signatures expected from galaxy formation processes, such as black hole feedback, as well as from primordial Universe physics during Inflation. These results were obtained with the aid of "Response Functions", which describe rigorously the...
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Dominik Duda (MPP)04/12/2019, 11:10
The Higgs boson discovery in the year 2012 at the Large Hadron Collider (LHC) has been so far the greatest success of the ATLAS and CMS collaborations [arXiv:1207.7214]. Since then multiple studies have been performed to deter- mine whether the properties of this particle (such as CP state, spin, mass and coupling to bosons and fermions) are compatible with the predictions of the Standard...
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Prof. Elisa Resconi (TUM)04/12/2019, 11:25
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Dr Hannes Mutschler (MPIB)04/12/2019, 11:55
It is widely accepted that nucleic acids were crucial for the emergence of primitive life on Earth 3.5 – 4 billion years ago. However, geochemical conditions on early Earth must have differed greatly from the constant internal milieus of today's cells where modern biocatalysis takes place. Our research focuses on the activity of catalytic RNA polymers (ribozymes) under extreme and/or unusual...
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Alexander Ruf04/12/2019, 13:30
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Oliver Trapp04/12/2019, 13:50
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Alan Ianeselli04/12/2019, 14:10
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Kristian Le Vay04/12/2019, 14:30
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Joachim Rosenberger04/12/2019, 14:50
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Carsten Donau04/12/2019, 15:10
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Stephen Mojzsis (University of Colorado)04/12/2019, 15:30
Subsequent to the Moon’s formation, late accretion to the terrestrial planets strongly modified the physical and chemical nature of their silicate crusts and mantles. Here, dynamical N-body and Monte Carlo simulations are combined to determine impact probabilities, impact velocities, and expected mass augmentation onto the terrestrial planets from three sources: planetesimals left over from...
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Andreas Burkert (LMU), Stephan Paul (TU-München)04/12/2019, 16:30
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04/12/2019, 16:50
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Dr Katharina Langosch (ORIGINS), Mr Stefan Waldenmaier04/12/2019, 17:00
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Rolf Kudritzki (USM LMU/MIAPP)04/12/2019, 17:20
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Dr Klaus Dolag (USM)04/12/2019, 17:40
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Ilka Brunner (LMU)05/12/2019, 09:00
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Andreas Weiler (TUM)05/12/2019, 09:30
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Joseph Mohr (LMU / MPE)05/12/2019, 10:00
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Volker Springel (MPA)05/12/2019, 11:00
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Prof. Dieter Braun (LMU)05/12/2019, 11:30
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Andreas Burkert (LMU)05/12/2019, 14:00
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Barbara Ercolano05/12/2019, 14:10
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Mathias Garny (TUM)05/12/2019, 14:40
In this talk, I will briefly discuss the variety of research topics related to dark matter within ORIGINS, and what we can learn from combining them.
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Fabian Schmidt (MPA)05/12/2019, 15:10
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Thorsten Naab (Max-Planck-Institute for Astrophysics)05/12/2019, 16:10
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Laura Fabbietti (TUM)05/12/2019, 16:40
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Prof. Erwin Frey05/12/2019, 17:10
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Andreas Burkert (LMU), Stephan Paul (TU-München)05/12/2019, 17:40
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Laura Serksnyte
The existence of the dark matter has been well established since the first observational evidence in 1933 but no dark matter candidate has been seen yet. There are several different ongoing dark matter searches. The indirect dark matter search is looking at the dark matter annihilation and decay products in cosmic rays. The most promising channel in such study is the antimatter cosmic rays as...
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Prof. Dieter Braun (LMU)
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Dr Milena Valentini (USM - LMU)
I will introduce a new methodology to generate synthetic stars from star particles in cosmological simulations. This technique takes properties of star particles from simulations as input and allows to obtain a catalogue of mock stars, provided with photometric properties. The key goal of this method is to compare as fairly as possible the outcome of cosmological simulations, that provide a...
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Harald Lesch (LMU)
Die interessantesten Fragen der Naturwissenschaften beschäftigen sich mit Geschichte. Wie sind Universum, Erde und das Leben entstanden? Dabei behandelt die Physik solche speziellen Einzelereignisse eher ungern. Die Zeit ist in den meisten Theorien nur passiv, einfach da, wird mit der Uhr gemessen. Aber das stimmt ja nicht. Zeit ist die qualitative Dimension. Trotzdem darf ein Kosmos mit...
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Apostolos Zormpas (Universitäts-Sternwarte, Ludwig-Maximilians-Universität München)
Recently, a sub-arcsecond resolution survey of the dust continuum emission from nearby protoplanetary disks, conducted with the Submillimeter Array showed a strong correlation between the sizes and luminosities of the disks. Performing models of gas and dust disk evolution, we recreate this relation using a large grid of models that varies the initial conditions. We calculate the disk...
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Dr Maximilian Fabricius (MPE)
While additive manufacturing (aka 3D printing) is a very attractive method for fabricating mechanical structures, so far it is finding very limited application in the field of astronomical instrumentation. Today, even structures in high yield strength metallic alloys can be manufactured and the method doesallow for arbitrarily complex 3D geometries. The mode of fabrication is most suitable for...
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Julien Wolf (MPE)
We present a statistical analysis of the optical properties of an X-ray selected Type 1 AGN sample using high signal-to-noise ratio (S/N>20) spectra of the counterparts of the ROSAT/2RX sources in the footprint of the SDSS-IV/SPIDERS (Spectroscopic IDentification of eROSITA Sources) programme. The sample of 2100 source is a factor of 4-18 larger than ...
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Ivan Vorobyev (TUM)
The measurement of low-energy cosmic anti-deuterons may reveal exotic processes such as dark-matter annihilation, since the production rate of such ions through secondary processes as the inelastic scattering of cosmic-ray protons with the interstellar medium is very low. However, the lack of experimental data at low energies hampers precise predictions of the expected anti-deuteron fluxes...
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Matías Ignacio Gárate Silva (University Observatory Munich)
Protoplanetary disks are made out of gas and dust. In the beginning, the dust is only a small fraction of the total gas mass and is well mixed through the disk, however, regions such as snowlines, dead zones, and pressure maxima, can trap the solid particles and enhance the local dust-to-gas ratio. We show that when the concentration of solids is high enough, the dust back-reaction can modify...
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Marcel Lotz (USM)
The effect of galactic orbits on a galaxy's internal evolution within a galaxy cluster environment has been the focus of heated debate in recent years. To understand this connection, we use both the (0.5 Gpc)^3 and the Gpc^3 boxes from the cosmological hydrodynamical simulation set Magneticum Pathfinder. We investigate the velocity anisotropy, phase space, and the orbital evolution of up to ˜5...
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Dr Ariel Sanchez (MPE)
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Dr Angnis Schmidt-May (MPP)
Various observations point towards new physics beyond our standard theories for particles and their interactions. Examples are the unknown nature of dark matter and dark energy which dominate the energy content of our Universe. These puzzles, among others, motivate the search for new ingredients to our descriptions of elementary particles in the framework of field theory. Many of the...
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Agne Semenaite
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Dr Klaus Dolag (USM), Dr Klaus Dolag (USM)
We propose to perform a feasibility study to produce observational images of simulated galaxies, evaluating the possibility to connect different publicly available radiative transfer (RT) packages to different simulations based on GADGET (Dolag, Remus), RAMSES (Emsellem) and GASOLINE (Obreja).
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Sebastian Steinbeißer (Technische Universität München)
As part of our ongoing project to determine $\alpha_{s}$ in a $2+1+1$-flavor lattice QCD calculation, we perform a 1-loop lattice perturbation theory computation to diminish the effects of finite lattice spacing.
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I will report on the goal and the status of this project. -
Dr Viljami Leino (TUM)
The matter produced in heavy ion collisions at ALICE and RHIC can be characterized as a strongly couplend quark gluon plasma. Within this plasma, the heavy quarks can be seen to behave with Langevin dynamics, with the diffusion expressed with heavy quark momentum diffusion coefficient. We measure the diffusion coefficient non-perturbatively using lattice field theory simulations. We present...
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Dr Wai Kin Lai (TUM)
Since the discovery of the Higgs boson in 2012, measurement of the couplings of the Higgs boson to other Standard Model particles is a key task of the LHC and future collider experiments. For the fermions, so far only the couplings of the third generation to the Higgs boson have been measured. There is promising future prospect in measuring one of the couplings of the Higgs boson to the second...
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Dr Martin Weidl (IPP)
In order to study the formation of parallel collisionless shocks, we
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generate a beam of laser-produced carbon ions inside the Large Plasma
Device at UCLA. As the beam propagates through the magnetized helium
plasma at super-Alfvénic speed, we measure the growth of parallel
ion-beam instabilities in excellent agreement with hybrid-PIC
simulations and analytic calculations. We discuss the roles... -
Dr Thibaut Houdy
The nature of dark matter is among the most challenging question of modern physics. Axions are
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invoked to solve the strong CP problem and are dark matter candidates. Built upon CAST, IAXO is
the new generation helioscope, designed to discover solar axions by measuring x-rays induced by
axion-photon conversion. BabyIAXO targets to build its first prototype in the next years. One of the... -
Dr Wai Kin Lai (TUM)
The XYZ states are quarkonium-like exotic hadrons, for which so far we do not have a clear picture about the physics behind them. A lot of models have been proposed. A model-independent way to look at the XYZ states based on QCD is using an effective field theory called potential nonrelativistic QCD (pNRQCD). Using pNRQCD, We study the spin splitting in heavy quarkonium hybrids, which is a...
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Prof. Elisa Resconi (TUM)
”STRings for Absorption length in Water”, STRAW, has been developed for a feasibility study of a new large-scale neutrino telescope in the Pacific Ocean (P-ONE). The science goal is to investigate the optical properties (scattering length, absorption length and op- tical background) of the deep-sea water at the candidate site of Cascadia Basin (British Columbia, Canada). The detector, made of...
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Erwin Gutsmiedl (TUM)
In order to improve the non- Standard Model weak interaction scalar and tensor coupling upper limits by an order of magnitude and to determine the helicity of an antineutrino combined with a low velocity charged lepton, the free neutron bound beta decay (n → H + ) (BOB) shall be measured. Thereby, monoenergetic metastable BOB H atoms (T=~326 eV) with a single hyperfine state, selected by a...
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Lothar Oberauer (TUM)
The JUNO (Jiangmen Underground Neutrino Observatory) project in China is aiming for high precision measurements in the field of low energy neutrino and astroparticle physics. Main goals are the determination of the neutrino mass ordering and the accurate measurement of neutrino oscillation parameters by high resolution spectroscopy of reactor neutrinos. In addition solar neutrino spectroscopy,...
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Mr Fabian Schnitter
The chemical synthesis of chiral molecules yields a racemic mixture. That is an equal mixture of two molecules (L and D) with identical physical properties, but which are non-superposable on their mirror image. Living systems by contrast synthesize and use predominantly one form. Regarding amino acids, it is the L-form. A possible origin of this homochirality involves a two-step process,...
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Peter Vander Griend (Technical University of Munich)
Heavy ion collision experiments at the LHC and RHIC seek to create and observe a new state of matter, the long-theorized quark gluon plasma (QGP). The behavior of heavy quarks and their in medium bound states are predicted to serve as a probe of the QGP; specifically, this in medium behavior is governed by transport coefficients which are currently the focus of experimental and theoretical...
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Dr Igor Konorov (TUM)
Within the project we are developing a synchronous, distributed, multi-channel acquisition system which features full galvanic isolation and therefore immune to induced electromagnetic noise. The system can be deployed in the harsh environment of experimental areas very close to the detector and therefore allows to achieve high precision measurements. The system consists of multiple single...
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Prof. Barbara Ercolano
PAHs are thought to play a very important role on the hesting of the gas in planet-forming discs, yet they are rarely observed in discs around young solar type stars. Are PAHs destroyed by X-rays in the atmospheres of discs? We plan to use the Twinkle Space Mission (Launch 2022) to confirm once and for all the presence of PAHs in disc atmospheres, by targeting the 3.3micron feature, whose...
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Dr Christian Alig (USM)
Poster presenting the VR Lab activities and live demonstration.
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