ORIGINS Science Week 2020

Kloster Irsee

Kloster Irsee

Kloster Irsee

The Science Week of the ORIGINS Cluster will take place from November 23 - 26 in Kloster Irsee. Cluster scientists and invited guests will present their current research work in the fields of astrophysics, cosmology, particle, nuclear physics and biophysics. The Science Week is an interdisciplinary event and directed to all scientists who want to gain insight into the current state of all cluster research areas. Due to COVID-19 restrictions, the on-site participation is unfortunately restricted to 40.  Therefore we ask you to register your participation well in advance. Preference will be given to those holding a talk. 

Program highlights
Cluster highlight talks 
Research unit (RU) and connector (CN) overview talks
PhD Awardee talks with laudatio
Highlight talks by external invited speakers 
Seed Money poster presentations
General Assembly of all cluster members  

Registration required.

Call for Abstracts (highlight talks, review talks, invited talks, introductory talks or posters):
Please register your talk or poster by October 15, 2020. All Seed Money Projects 2020 have to be presented with a poster contribution. Highlight talks should be coordinated with the RU-/CN-Coordinators. 

Posters: The use of our template is mandatory (see files below). 

Venue: Kloster Irsee,


Registration for the ORIGINS Science Week 2020
  • Francesca Capel
  • Jan-Hagen Krohn
  • Petra Schwille
    • 08:50 09:00
      Opening remarks 10m
      Speakers: Andreas Burkert (LMU) , Stephan Paul (TU-München)
    • 09:00 09:25
      HL RU 25m
    • 09:25 09:50
      HL CN 25m
    • 09:50 10:15
      HL RU 25m
    • 10:15 10:45
      Tea, Coffee 30m
    • 10:45 11:10
    • 11:10 11:35
      HL CN 25m
    • 11:35 12:00
      HL CN 25m

      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 BOSS and the cosmic microwave background from Planck 2018, showing that the two data sets are consistent within a flat ΛCDM cosmology.

    • 12:00 14:00
      Lunch Break 2h
    • 14:00 14:25
      HL RU 25m
    • 14:25 14:50
      HL CN 25m
    • 14:50 15:15
      HL RU 25m
    • 15:15 15:40
      HL CN 25m
      Speaker: Reinhard Genzel (MPE)
    • 15:40 16:10
      Tea, Coffee and Posters 30m
    • 16:10 16:20
      ORIGINS PhD Award 2020 (experiment): Laudatio 10m
    • 16:20 17:10
      ORIGINS PhD Award 2020 (experiment) 50m
    • 17:10 20:10
      Seed Poster Session 3h
    • 09:00 09:25
      Information field theory: machine learning with a knowledge driven design 25m

      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 astrophysics are galactic tomography, gamma- and radio- astronomical imaging, and the analysis of cosmic microwave background data.

      Speaker: Dr. Torsten Enßlin (MPA)
    • 09:25 09:50
      Summary from the ODSL kick-off meeting 25m
      Speaker: Dr. Philipp Eller
    • 09:50 10:15
      HL CN-3: Impact of astrophysical uncertainties in local DM searches 25m

      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 of the astrophysical uncertainties on the interpretation of esults from direct detection experiments and/or neutrino telescopes. In order to stress the importance of astrophysical uncertainties, we discuss a concrete example by determining the impact of substructure on local dark matter searches.

      Speaker: Andreas Rappelt (TUM)
    • 10:15 10:30
      CT: Massive gravitons in four dimensional anti de-Sitter space and Holography 15m

      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 shown that it emerges as a special limit of a corresponding bi-gravity theory. The obtained mass formula depends on parameters of the geometry of the warped background as well as from the variation of the dilaton field. The analysis is extended to the study of manifolds which allow for
      multiple massive gravitons.

      Speaker: Dr. Ioannis Lavdas (LMU)
    • 10:30 11:00
      Tea, Coffee, Posters and Virtual Reality Viewing 30m
    • 11:00 11:25
      HL CN-4: Gravitational Theory and Consistent Interactions 25m


      Speaker: Dr. Angnis Schmidt-May (MPP)
    • 11:25 12:05
      External HL: Galaxy shapes as a cosmological tool 40m

      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 the origin of accelerated expansion of the Universe. In this talk, I will cover recent advances in our understanding of the intrinsic alignments of galaxies. While these alignments are typically regarded as a contaminant to weak gravitational lensing, I will also discuss how they might become a cosmological probe in their own right in the near future.

      Speaker: Dr. Elisa Chisari (University of Oxford)
    • 12:05 12:45
      3min introductions of new PhDs and Postdocs 40m
    • 12:45 14:00
      Lunch Break and Virtual Reality Viewing 1h 15m
    • 14:00 14:25
      HL RU-D: eROSITA on SRG: a dream comes true 25m

      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 systematically all obscured accreting Black Holes in nearby galaxies and many (up to 3 Million) new, distant active galactic nuclei, and 3) study in detail the physics of galactic X-ray source populations, like pre-main sequence stars, supernova remnants and X-ray binaries. In my talk I will report on the actual performances of the instrument in comparison with the expectations before launch. In particular, I will highlight how eROSITA is already changing what we know about the hot and energetic Universe.

      Speaker: Mara Salvato (MPE)
    • 14:25 14:50
      HL RU-B: Antinuclei in the lab and in the cosmos 25m
      Speaker: Alejandro Ibarra (TUM)
    • 14:50 15:15
      HL CN-6: AWAKE: A Proton Driven Plasma Wakefield Electron Accelerator 25m

      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 2018, AWAKE completed its first phase, AWAKE Run 1, in which proton bunch SSM and the acceleration of externally injected electrons were demonstrated. The discussion includes the physics of plasma wakefields and SSM, followed by the experimental results of AWAKE Run 1, and finally the future with AWAKE Run 2 and beyond.

      Speaker: Dr. Joshua Moody
    • 15:15 15:40
      HL CN-7: Applications of Different Neutrino-Transport Methods in Three-Dimensional Supernova Simulations 25m

      I will report on our recent comparison of self-consistent, time-dependent core-collapse supernova simulations in three spatial dimensions.
      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).

      Speaker: Mr. Robert Glas (MPA)
    • 15:40 16:20
      Tea, Coffee and Posters 40m
    • 16:20 16:30
      ORIGINS PhD Award 2020 (theory) - Laudatio 10m
      Speaker: Andrzej J. Buras (Technical University Munich)
    • 16:30 17:20
      ORIGINS PhD Award 2020 (theory) 50m
    • 09:00 09:25
      HL RU-C: Recent Advancements in X-ray Cluster Cosmology in Preparation for eROSITA 25m

      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 several systematic effects.
      First, I review the established modelling framework to extract cosmological information from cluster catalogues and present the expected performance of eROSITA as a cluster finding tool. After that, I will present recent and ongoing efforts to control the dominant systematic effects plaguing cluster cosmology, ranging from mass calibration over optical confirmation and redshift estimation to the characterisation of the X-ray selection function. Finally, I will present novel techniques that allow one to empirically validate cluster cosmological results.

      Speaker: Dr. Sebastian Grandis
    • 09:25 09:40
      CT: Start of Belle II Physics Run 15m

      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 decay channels of B mesons, charm hadrons, and tau leptons. The status of the experiment and first performance measurements will be presented.

      Speaker: Thomas Lück (LMU)
    • 09:40 09:55
      Bridging high and low scale physics in effective field theories and applications to LHC physics 15m

      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 and hadron colliders.

      Speaker: Dr. Hee Sok Chung (TUM)
    • 09:55 10:10
      CT: Constraining the Hyperon-Nucleon and Hyperon-Hyperon interaction with femtoscopy in small systems at the LHC 15m

      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 stars is that neutrons and hyperons might be contained in the core. To obtain a better understanding of the composition of these objects, a detailed knowledge of the interaction of the constituents becomes mandatory. This kind of analyses is complementary to previous attempts to study the interaction with scattering experiments, which are difficult to conduct due to the instable nature of hyperon beams.

      In this contribution, we present measurements of the ALICE Collaboration in pp collisions at √s = 7 and 13 TeV and p–Pb at √s$_{NN}$ = 5.02 TeV. The statistics of RUN 2 data provide a higher precision in the analysis of the p-p, p-Λ and Λ-Λ correlations, and additionally make it possible to probe the interaction of more exotic pairs such as p-K, p-Ξ, p-$\Omega$ and p-$\Sigma^{0}$. Newly developed analysis tools allow comparing the measured correlation function between the particle pairs of interest to theory predictions using either potentials or wave functions as input. This enables us to verify chiral and lattice calculations of the interaction and to constrain the corresponding scattering parameters.

      Speaker: Bernhard Hohlweger (TUM)
    • 10:10 10:40
      Tea, Coffee and Posters 30m
    • 10:40 10:55
      CT: Antimatter propagation modelling and antimatter absorption measured with ALICE at the LHC 15m
      Speaker: Ivan Vorobyev (TUM)
    • 10:55 11:10
      CT: Imprints of Galaxy Formation and Inflation on Large-Scale Structure 15m

      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 complicated dependence of galaxy formation on the environment in which they form. These functions were measured for the first time with a technique called "Separate Universe Simulation" using the IllustrisTNG model, a state of the art hydrodynamical simulation code of cosmological galaxy formation. The results I will show pinpoint a concrete way to use galaxy clustering and gravitational lensing measurements to constrain the primordial Universe, as well as how galaxies form across time. Based on and .

      Speaker: Dr. Alexandre Barreira (MPA)
    • 11:10 11:25
      CT: Probing the Higgs boson with effective field theories: latest LHC results 15m

      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 Model (SM) or not.
      All measurements that have been done so far on the Higgs boson properties seem to verify the SM predictions. However, several questions related to the Higgs boson are still unanswered. One of which is whether the coupling of the Higgs to other bosons and fermions correspond to the predictions of the Standard Model or whether deviations with respect to the SM can be observed.
      With the large data set that have been collected by the ATLAS and CMS experiments during the complete Run-2 of the LHC, it is possible to measure differential and fiducial production cross sections with a high precision and interpret them in the context of effective field theories. In these approaches, the SM Lagrangian is supplemented by additional higher-dimension operators. Some of these new operators encode new structures for the interaction between the Higgs boson and the SM particles, which can modify the shapes of kinematic distributions. It is assumed that the new interaction terms in the Lagrangian are the low-energy manifestation of new physics that exists at an energy scale that is much larger than the partonic centre-of-mass energies being probed.
      This talk gives an experimental overview of the latest Higgs boson prop- erty measurements at the LHC experiments based on effective field theory ap- proaches.

      Speaker: Dominik Duda (MPP)
    • 11:25 11:55
      Connector 6 Overview Talk 30m
      Speaker: Prof. Elisa Resconi (TUM)
    • 11:55 12:20
      HL CN-2: Catalytic nucleic acids as model systems to study the emergence of life on early Earth (and elsewhere) 25m

      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 conditions that may relate to prebiotic environments. In particular, we are interested in how environmental effects on early Earth might have driven crucial processes such as self-replication or the formation and proliferation of early protocells. As part of the Origins cluster, we are also interested if putative conditions on exoplanets in the habitable zone are compatible with nucleic acid-based biocatalysis.

      Speaker: Dr. Hannes Mutschler (MPIB)
    • 12:20 13:30
      Lunch Break 1h 10m
    • 13:30 13:50
      Molecular reactivity of ices in the protosolar nebula 20m
      Speaker: Alexander Ruf
    • 13:50 14:10
      When does evolution start at a molecular level? 20m
      Speaker: Oliver Trapp
    • 14:10 14:30
      Strand separation and replication of oligonucleotides induced by a thermal gradient in a primordial CO2 atmosphere 20m
      Speaker: Alan Ianeselli
    • 14:30 14:50
      Nucleic Acid Catalysis in Potential Prebiotic Environments 20m
      Speaker: Kristian Le Vay
    • 14:50 15:10
      Self-assembly of informational polymers via template-directed ligation 20m
      Speaker: Joachim Rosenberger
    • 15:10 15:30
      Dynamic protocells from peptides and RNA 20m
      Speaker: Carsten Donau
    • 15:30 16:10
      External HL: Late accretion to the inner solar system modulated the emergence of life 40m

      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 primary accretion, asteroids from the hypothetical E-belt, and comets arriving from the outer Solar System. I present new estimates of the amount of cometary material striking the terrestrial planets in an early (ca. 4480 Ma) episode of planetesimal-driven giant planet migration (Mojzsis et al. 2019; Brasser, Werner & Mojzsis 2019). The Moon and Mars suffer proportionally higher cometary accretion than Venus and Earth at late accretion. The background mass addition from small leftover planetesimals to Earth and Mars is far less than independent estimates based on geochemical tracers. This supports the theory that both planets were struck by single large bodies that delivered most of their terminal mass augmentation since primary accretion, rather than a throng of smaller impactors. I also present new fits to the impact chronologies valid from 4500 Ma to ca. 3700 Ma by which time the low number of planetesimals remaining in the dynamical simulations causes the impact rate to drop artificially. This temporal interval in solar system evolution, termed late accretion, thermally and chemically modified solid planetary surfaces and may have impeded life’s emergence on the Hadean (pre-3.85 Ga) Earth. I will conclude the presentation with amended global 3-D thermal analytical bombardment models derived from our new impact mass-production functions to show that persistent niches for prebiotic chemistry on the early Hadean Earth could endure late accretion a mere 170 Myr after the start of the solar system (Benner et al. 2019).

      Benner, S.A., Bell, E.A., Biondi, E., Brasser, R., Carell, T., Kim, H-J., Mojzsis, S.J., Omran, A., Pasek, M.A., and Trail, D. (2019) When did Life Likely Emerge on Earth in an RNA-First Process? ChemSystemsChem Reviews DOI: 10.1002/syst.201900035.
      Brasser, R., Werner, S.C., Mojzsis, S.J. (2019) Impact bombardment chronology of the terrestrial planets from 4.5 Ga to 3.5 Ga. in press - Icarus.
      Mojzsis, S.J., Brasser, R., Kelly, N.M., Abramov, O., and Werner, S. (2019) Onset of giant planet migration before 4480 million years ago. The Astrophysical Journal, 881:44 (13pp), 2019 August 10

      Speaker: Stephen Mojzsis (University of Colorado)
    • 16:10 16:30
      Tea, Coffee and Posters 20m
    • 16:30 16:50
      General Assembly: ORIGINS Summary 20m
      Speakers: Andreas Burkert (LMU) , Stephan Paul (TU-München)
    • 16:50 17:00
      General Assembly: Elections 10m
    • 17:00 17:20
      General Assembly: Cluster Administration, Public Outreach 20m
      Speakers: Dr. Katharina Langosch (ORIGINS) , Mr. Stefan Waldenmaier
    • 17:20 17:40
      General Assembly: MIAPP Summary 20m
      Speaker: Rolf Kudritzki (USM LMU/MIAPP)
    • 17:40 18:00
      General Assembly: C2PAP Summary 20m
      Speaker: Dr. Klaus Dolag (USM)
    • 09:00 09:30
      Research Unit A Overview 30m
      Speaker: Ilka Brunner (LMU)
    • 09:30 10:00
      Research Unit B Overview 30m
      Speaker: Andreas Weiler (TUM)
    • 10:00 10:30
      Research Unit C Overview 30m
      Speaker: Joseph Mohr (LMU / MPE)
    • 10:30 11:00
      Tea, Coffee and Posters 30m
    • 11:00 11:30
      Research Unit D Overview 30m
      Speaker: Volker Springel (MPA)
    • 11:30 12:00
      Research Unit E Overview 30m
      Speaker: Prof. Dieter Braun (LMU)
    • 12:00 14:00
      Lunch Break 2h
    • 14:00 14:10
      Connector 1 Overview 10m
      Speaker: Andreas Burkert (LMU)
    • 14:10 14:40
      Connector 2 Overview 30m
      Speaker: Barbara Ercolano
    • 14:40 15:10
      Connector 3 Overview: Shedding light on Dark Matter 30m

      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.

      Speaker: Mathias Garny (TUM)
    • 15:10 15:40
      Connector 4 Overview 30m
      Speaker: Fabian Schmidt (MPA)
    • 15:40 16:10
      Tea, Coffee and Posters 30m
    • 16:10 16:40
      Connector 5 Overview 30m
      Speaker: Thorsten Naab (Max-Planck-Institute for Astrophysics)
    • 16:40 17:10
      Connector 7 Overview 30m
      Speaker: Laura Fabbietti (TUM)
    • 17:10 17:40
      Connector 8 Overview 30m
      Speaker: Prof. Erwin Frey
    • 17:40 17:50
      Closing remarks 10m
      Speakers: Andreas Burkert (LMU) , Stephan Paul (TU-München)
    • 19:00 21:00
      Dinner of the Research Board 2h Georgenhof


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