Balaton Workshop 2019

3 Klebersberg Kuno Str, Tihany, H-8237, Hungary
Gergely Gábor Barnaföldi (Wigner RCP RMI of the Hungarian Academy of Sciences) , Peter Levai (WIGNER RCP) , Tamas Biro (No institute)
  • Adam Takacs
  • Akos Sudar
  • Andras Ster
  • Antal Jakovac
  • Baiyang Zhang
  • Balázs Endre Szigeti
  • Bálint Csurgai-Horváth
  • Denes Molnar
  • Eszter Frajna
  • Gergely Gábor Barnaföldi
  • Gábor Bíró
  • Gábor Papp
  • Horst Stoecker
  • Ildiko Fazekas
  • Johann Rafelski
  • Laszlo Csernai
  • Martin Formanek
  • Miklos Gyulassy
  • Monika Varga-Kofarago
  • Máté Csanád
  • Peter Levai
  • Peter Ván
  • Péter Kovács
  • Péter Pósfay
  • Róbert Vértesi
  • Stefan Evans
  • Tamas Biro
  • Tamas Csorgo
  • Zoltán Zimborás
  • Zsolt Schram
    • 2:00 PM
      Registration and Check in to the Guesthouse
    • 1
      Opening & Practical Info
    • Session 1: Heavy-Ion Theory
      Convener: Dr Gergely Gábor Barnaföldi (Wigner RCP RMI of the Hungarian Academy of Sciences)
      • 2
        Some aspects of gravitation: from thermodynamics to Eötvös balance

        Some aspects of gravity related thermodynamics and thermodynamic related gravitation is mentioned. It will be demonstrated, that heat capacity of black holes is positive if volume is introduced as a thermodynamic state variable [1]. Then it is shown, that Newtonian gravitation is emergent in a universal nonequilibrium thermodynamic framework [2]. Finally our Eötvös balance modernisation project and the preliminary results of our equivalence principle measurement is presented [3].

        [1] T.S. Biró, V. Czinner, H. Iguchi and PV, PLB, V782, 228, 2018, (arXiv:1712.09706).
        [2] PV and S. Abe, 2019, arXiv:1903.09835.
        [3] Gy. Tóth, 2018, arXiv:1803.04720.

        Speaker: Péter Ván
      • 3
        Large v2 with small cross section

        We resolve a long-standing mystery of how the transport model AMPT manages
        to generate sufficiently high elliptic flow (v2) with only few-millibarn
        2->2 partonic cross sections. With the help of the covariant Molnar's
        Parton Cascade (MPC) transport solver, we investigate the influence of the
        particular initial conditions, interactions, and dynamics encoded in the
        partonic stage of AMPT. Through detailed comparisons, we pinpoint at last
        which features enable AMPT to circumvent the "RHIC opacity puzzle" raised
        by Molnar and Gyulassy [NPA697, 495 (2002)].

        Speaker: Prof. Dénes Molnár (Purdue University)
      • 4
        Suppression of anisotropic flow without viscosity

        Relativistic viscous hydrodynamics calculations can describe a wide range of observables in relativistic heavy ion collisions. However, many studies suggest that the hot and dense system created is not in local thermal equilibrium, resulting in a contradiction for the applicability of hydrodynamics. In hydrodynamic calculations, a crucial step is to convert the fluid fields into observable particles. The most common approach is to use the Cooper-Frye formula, which assumes thermal (Boltzmann/Bose/Fermi) distributions at the conversion. In this talk, I show how local equilibrium distributions of the Tsallis form can affect observables, resulting in non-exponential particle distributions and a viscous-like suppression of the anisotropic flow. By comparing the calculation to experimental data, I will estimate the degree of non-Boltzmann effects on the freeze-out surface.

        Speaker: Adam Takacs (University of Bergen)
    • 5:00 PM
      Coffee Break
    • Session 1: Heavy-Ion Theory
      Convener: Dr Gergely Gábor Barnaföldi (Wigner RCP RMI of the Hungarian Academy of Sciences)
      • 5
        Model Jet-quenchng in HIJING++
        Speaker: Prof. Gabor Papp (Eötvös Loránd University)
      • 6
        Precision Dijet Acoplanarity and Jet Anisotropy Probes of the Color Structure of Perfect QCD Fluids Produced at RHIC and LHC

        New results will be shown using our CUJET3.1 framework globally Chi^2 constrained by both soft pT<2 and hard pT>20 data as well theoretical lattice QCD data. The focus is to show the sensitivity of future precision dijet acoplanarity and single jet azimuthal anisotropy observables to different assumptions about the color dof and structure of “perfect” QCD fluids produced at RHIC and LHC. We show that existing experimental data strongly favor a semi-Quark-Gluon-Magnetic Monopole Plasma (sQGMP) structure in the confinement temperature range over weakly coupled perturbative Quark Gluon Plasmas (wQGP).

        [Refs: S.Shi,J.Liao, MG, arXiv:1808.05461 [hep-ph] ,in press; MG et al, QM18, Nucl.Phys.A982(2019)627]]

        Speaker: Prof. Miklos Gyulassy (Wigner MTA,LBNL, CCNU)
    • 7:00 PM
      Welcome dinner at Ferenc Pince, Tihany
    • 8:00 AM
    • Session 1: Heavy-Ion Experiment
      Convener: Tamas Biro (No institute)
      • 7
        Flavor-dependent fragmentation via jet structures and correlations in high-multiplicity pp collisions

        High multiplicity events of small colliding systems at LHC energies show longe-range correlations and azimutal anisothropy that are similar to those seen in heavy ion collisions with comparable multiplicities. Whether this collective-like behaviour can be attributed to the presence of a deconfined state in small systems is an open question. Recent research hints that vacuum QCD effects such as multiple-parton interactions and color reconnection may also explain such collective effects [1]. While we cannot expect jet quenching in small systems, QCD phenomena at the soft-hard boundary may cause a modification of the jet shapes as well as two-particle correlation pictures. Existing and forecoming data at the experiments of the LHC provide means to access such observables.
        Based on extensive studies with event generators, we give predictions for multiplicity-dependent jet structures in p+p collisions at high jet-pT. We show that the presence of MPI modifies the jet shapes in high-multiplicity events beyond trivial selection bias. Such high-pT multiplicity-differential probes provide a sensitive validation opportunity for models involving different MPI, color reconnection schemes or parton distribution functions [2]. Jets from heavy-flavor quarks are expected to undergo different fragmentation than light-flavor jets, due to mass and color charge effects. We show a surprizing pattern of multiplicity-dependent structures in jets originating from different flavors. Preliminary correlation results of heavy and light particles, corroborating our findings, will also be shown [3].

        [1] Gy.Bencedi, A.Ortiz, H.Bello, J.Phys. G44 (2017) no.6, 065001.
        [2] Z.Varga, R.Vertesi, G.G.Barnafoldi, Adv.High Energy Phys. 2019 (2019) 6731362; MDPI Proc. 10 (2019) no.1, 3; In the Proceedings of Zimanyi19 workshop, submitted to Universe.
        [3] E.Frajna, R.Vertesi, arXiv:1903.10566 [hep-ph], in the Proceedings of Zimanyi19 workshop, submitted to Universe.

        Speaker: Robert Vertesi (MTA Wigner RCP RMI)
      • 8
        Correlation of heavy and light flavours in simulations

        The Large Hadron Collider (LHC) at CERN investigates the fundamental nature of the strong interaction in collisions of protons or heavy ions that are travelling at almost the speed of light. In these high-energy collisions, heavy (charm and bottom) quarks are created in the early stages of the reaction. Since they are produced in initial hard processes and their numbers are largely unchanged in the later stages of the reaction, they serve as ideal probes to test the validity of quantum color dynamics as well as the properties of a strongly interacting hot and dense medium in a heavy ion collision. Launched in 2015, the LHC's Run-II phase, with the improved ALICE detector system, enabled the most precise heavy quark measurements ever. Monte carlo simulations allow us to study possible experimental signature on a process-by-process base. In this presentation I account for our recent results on correlations of heavy and light flavors in event generators within the ALICE acceptance. We also propose methods based on these results to separate these processes experimentally, in order to gain a deeper understanding on heavy-flavor fragmentation.

        Speaker: Eszter Frajna
      • 9
        Recent Lévy femtoscopy results from SPS, RHIC and LHC


        Speaker: Máté Csanád (Eötvös University, Budapest)
    • 10:30 AM
      Coffee Break
    • Session 1: Heavy-Ion Experiment
      Convener: Tamas Biro (No institute)
      • 10
        Two-particle angular correlations in Pb-Pb collisions from ALICE

        The quark-gluon plasma, which is formed in heavy-ion collisions, can be studied by investigating how parton fragmentation is modified while passing through it. Two-particle angular correlations are useful to study the interactions of partons and the flowing medium in a transverse momentum regime where, after hadronization, jets cannot be reconstructed event-by-event above the fluctuating background.

        In this contribution, results from two-particle angular correlation measurements by the ALICE collaboration from Pb-Pb and pp collisions will be presented. In these measurements, the distribution of the azimuthal angle (Δφ) and pseudorapidity (Δη) difference of particle pairs is studied. In such a distribution, jets manifest themselves as a near-side peak around (Δφ, Δη) = (0, 0) and as an elongated structure on the away side around Δφ = π. The shape of the near-side jet peak is characterized as a function of the collisions centrality and the transverse momentum of the particles. It will be shown that the near-side jet peak becomes broader and asymmetric towards low transverse momentum and that a novel feature, a depletion around (Δφ, Δη) = (0, 0) develops at low transverse momentum. The results are compared to A Multi-Phase Transport model (AMPT), which suggests that the observed effects are accompanied by large radial and longitudinal flow.

        Speaker: Monika Kofarago (MTA Wigner RCP)
      • 11
        Study of angular correlations in Monte Carlo simulations

        In two-particle angular correlation measurements, the distribution of charged hadron pairs is evaluated as a function of pseudorapidity (∆η) and azimuthal (∆φ) differences. In these correlations, jets manifest themselves as a near-side peak around ∆η = 0, ∆φ = 0. These correlations can be used to extract transverse momentum (pT ) and centrality dependence of the shape of the near-side peak in Pb-Pb collision. The shape of the near-side peak is quantified by the variances of the distribution. The variances are evaluated from a fit combining the peak and the background. In this contribution, identified and unidentified angular correlations are shown from Pb-Pb collisions at $\sqrt{s_{NN}}$ =2.76 TeV from Monte Carlo simulations (AMPT, PYTHIA 8.235/Angantyr). Results show that transport models in AMPT give better results than PYTHIA 8.235/Angantyr when comparing to the experimental results of the ALICE collaboration.

        Speaker: Balázs Endre Szigeti (MTA Wigner FK)
      • 12
        Proton CT – Development of a medical imaging tool

        Cancer is one of the most important diseases these days. It is the second most common reason of death in Hungary, as it causes 26% of all deaths. Therefore it is an important question how to treat cancer. One of the most popular treatments is radiotherapy, which uses particles to ionize atoms and these atoms destroy the DNA of cancer cells. Radiotherapy uses two types of particles, X-ray and hadrons (protons or heavier ions). Nowadays X-ray is more popular, because it needs cheaper equipment and has a mature technology. However, the stopping-power distribution of hadrons is favorable, thanks to the Bragg-peak, which is where the ions lose most of their energy, therefore cause the most damage. In a treatment the Bragg-peak can be focused into the tumor, consequently the energy deposition can be reduced in the healthy tissue, which reduce the side effects. To use proton treatment effectively it is necessary to develop a proton CT to have an accurate 3D picture of the stopping-power before the tumor. The Bergen pCT collaboration decided to develop such a proton CT, which is a sampling calorimeter made up of alternating silicon sensitive layers and aluminum energy degraders. In this talk, I will show results of a test at the Heidelberg Ion-Beam Therapy Center (HIT) in Germany at low energy (50-220 MeV/u) of a prototype of this calorimeter, which is constructed of three ALPIDE sensors. ALPIDE is a digital and MAPS type silicon tracking sensor. It was developed in the CERN LHC ALICE collaboration to replace their current innermost tracking detector. The Bergen pCT collaboration is planning to use this sensor as the sensitive layer in the proposed calorimeter. I will present the current status of the research and development of the proton CT by the Bergen pCT collaboration.

        Speaker: Akos Sudar (MTA Wigner FK)
    • 12:20 PM
      Lunch Break
    • Open Discussion
    • 5:00 PM
      Coffee Break
    • Session 2: Heavy-Ion Theory
      Convener: Laszlo Csernai (University of Bergen)
      • 13
        Observation of a non-monotonic s-dependence of initial energy densities at RHIC and LHC

        We discuss a recently found family of exact and analytic, finite and accelerating, 1+1 dimensional solutions of perfect fluid relativistic hydrodynamics to describe the pseudorapidity densities and longitudinal HBT-radii and to estimate the lifetime parameter and the initial energy density of the expanding fireball in symmetric heavy ion collisions at RHIC and LHC energies. From these exact solutions of relativistic hydrodynamics, we derive a simple and powerful formula to describe the pseudorapidity density distributions in high energy proton-proton and heavy ion collisions, and derive the scaling of the longitudinal HBT radius parameter as a function of the pseudorapidity density. We improve upon several oversimplifications in Bjorken's famous initial energy density estimate, and apply our results to estimate the initial energy densities of high energy reactions with data-driven pseudorapidity distributions. When compared to similar estimates at the LHC energies, our results indicate a surprising and non-monotonic dependence of the initial energy density on the energy of heavy ion collisions at RHIC.

        Speaker: Prof. Tamás Csörgő (Wigner RCP and EKE KRC, Budapest and Gyöngyös)
      • 14
        Multiplicity dependence in the non-extensive hadronization model calculated by the HIJING++ framework

        The non-extensive statistical description of the identified final state particles measured in high energy collisions is well-known by it's wide range of applicability. However, there are many open questions that need to be answered, including but not limited to the question of the observed mass scaling of massive hadrons or the size and multiplicity dependence of the model parameters. This latter is especially relevant, since currently the amount of the available experimental data with high multiplicity at small systems is very limited.

        In this contribution the role of the size of the colliding system and multiplicity dependence of the parameters in the non-extensive hadronization model is investigated with HIJING++ calculations. We present cross-check comparisons of HIJING++ with existing experimental data to verify it's validity in our range-of-interest, as well as calculations at high-multiplicity regions where we have insufficient experimental data.

        Speaker: Gabor Biro (MTA Wigner FK)
      • 15
        Fine Tuning of the HIJNG++ in ProtonProton and Proton-Nucleus Collsions
        Speaker: Mr Bálint Csurgay-Horváth (Eötvös University)
    • 7:00 PM
      Dinner, Celebration of Miklós Gyulassy's 70th Birthday
    • Celebretion of Gyulasy Miklos 70
      Convener: Dr Gergely Gábor Barnaföldi (Wigner RCP RMI of the Hungarian Academy of Sciences)
    • 8:00 AM
    • Session 1: Neutron Stars & Nuclear Fields
      Convener: Prof. Gabor Papp (Eötvös Loránd University)
      • 16
        How the bulk properties of nuclear matter influence neutron star observables?

        Description of dense nuclear matter rely on the experimental constraints
        coming from the properties of "normal" nuclear matter found in nuclei and
        observational data from neutron stars which consist of ultra dense nuclear matter.

        In this presentation I show how the parameters of nuclear matter (effective nucleon mass, compressibility, and proton neutron asymmetry) influence the
        properties of neutron stars by using multiple Walecka type models with different scalar self interaction terms.
        In relativistic mean field theories of nuclear matter the values of the Landau mass and nucleon effective mass
        are not independent hence they can not be fitted in a given model simultaneously, which gives at least two different parametrization of the same model.
        The effect of this ambiguity on neutron star observable is studied by solving The Tollmann-Oppenheimer-Volkov equations
        using these different parametrizations. The sensitivity of the M-R diagram to different parametrizations of a given model is also
        studied especially in the case of maximum mass neutron stars.

        Speaker: Peter Posfay (Eötvös Lóránd University)
      • 17
        Bound states in quantum field theory: a renormalization group study

        In the talk we review the methods how relativistic bound
        states can be calculated in quantum field theory. We build up a
        renormalization group framework for solving the corresponding equations.
        We demonstrate in the exactly solvable nonrelativistic QED case, how
        these ideas work. Finally we show that in the symmetric phase of the NJL
        model there is an attractive potential between the constituents that may
        lead to formation of bound states.

        Speaker: Antal Jakovác (ELTE TTK)
      • 18
        Strange quark star properties from the vector meson extended linear sigma model

        The equation of state provided by effective models of the strongly interacting matter should comply with the restrictions imposed by current astrophysical observations on compact stars. Using the equation of state given by the (axial-)vector meson extended linear sigma model, we determine3the mass-radius relation and study whether these restrictions are satisfied under the assumption that most of the star is filled with quark matter. We also compare the mass-radius sequence with those5given by the equations of state of somewhat simpler models

        Speaker: Peter Kovacs (Wigner RCP)
    • 10:30 AM
      Coffee break
    • Session 1: Neutron Stars & Nuclear Fields
      Convener: Prof. Gabor Papp (Eötvös Loránd University)
      • 19
        Charmonium $(\bar c c)$ mass in hadron-nucleus reactions, how the in-medium gluon condensate can be measured

        We study the excitation function of the low-lying charmonium state: $\Psi$(3686) in hadron-nucleus collisions taking into account their in-medium propagation. The time evolution of the spectral functions of the charmonium state is studied with a BUU type transport model. We calculated the charmonium contribution to the dilepton spectrum and show that for $\Psi$(3686) production there is a good chance to observe its in-medium modification with good resolution detectors. The energy
        regime will be available in JPARC, PANDA and CBM

        Speaker: Gyorgy Wolf (MTA Wigner FK)
      • 20
        Gravitational Waves signal Strange Quark Matter in Binary Neutron Star Mergers

        The MAGIC similarity between relativistic heavy ion collisions and binary neutron star mergers is presented. Analogous dense matter equations of state, eos, yield in both, the astrophysical and the laboratory-on- earth scenario nearly identical compression, heating and isentropic expansion curves. It is demonstrated that the conjectured transition from baryonic to quark(-yonic) matter is signaled by the collapse of flow and by chirps in the gravitational waves, respectively.

        Speaker: Horst Stoecker (FIAS Goethe Universitaet GSI)
    • Open Discussion: Group Photo
    • 12:05 PM
      Lunch Break
    • 1:30 PM
      Excursion to Dörgicse Levendárium and Dinner at Gergely Pince

      13:30 Departing from Tihany BLI by bus
      14:00 - 15:15 Guided tour in Lóczy Cave, Balatonfüred in 2 groups (Duration of the tour is about 20-25 minutes)
      15:15 Bus departing from Lóczy Cave
      16:00 - 17:00 Visiting Lavender Field, Dörgicse
      Guided tour in the lavender field, with opportunity of tasting lavender syrup, lavender cookie, herb tea. Optional lavender harvesting.
      Optional programmes:
      Option 1
      17:00 - 18:30 Hiking to Kossuth Tower with a view of Balaton Lake, Distance: about 5 km, elevation: 160 m, surface: broken stone covered cart-road
      Option 2
      17:30 - 18:30 Walking tour to the ruin of the Boldogasszony Church with a view of Balaton Lake Distance: about 2 km, elevation: 30 m, surface: cart-road
      18:30 Bus departing from Dörgicse Lavender Field
      19:00 - 22:00 Vine tasting and dinner at Gergely Borház
      22:15 Bus departing from Gergely Borház
      22:45 Arriving to Tihany BLI

    • 8:00 AM
    • Session 1: Strongly Correlated Systems
      Convener: Prof. Dénes Molnár (Purdue University)
      • 21
        The application of spin formalism to dilepton production in pion-nucleon scattering

        The s-channel dilepton production from pion-nucleon scattering can be divided into three effective steps, 1) the pion and nucleon scattering results in an excited state of the nucleon, such as N(1440), N(1520) etc. 2) the resonance further decays into a nucleon and a gamma/rho meson, 3) the gamma/rho further decays into a pair of leptons or pions. Such process is studied with spin formalism and effective Lagrangians, where the helicity amplitudes for each process were calculated.

        Speaker: Dr Baiyang Zhang (Wigner research centre for physics)
      • 22
        Entropic Divergence Based Study of Hadronization and Preference

        Standard and non-standard entropy formulas are derived as entropic divergence from the uniform distribution based on a particular class of resetting master equations. Application to hadronization and other phenomena with preferential transition rates in the evolution of probability distribution are reviewed.

        Speakers: Tamas Biro (No institute) , Prof. Zsolt Schram (University of Debrecen)
      • 23
        Laser driven rapid, volume ignition

        Inertial Confinement Fusion is a promising option to provide massive, clean, and affordable energy for humanity in the future. The present status of research and development is hindered by hydrodynamic instabilities occurring at the intense compression of the target fuel by energetic laser beams. A recent proposal Csernai et al. (2018) combines advances in two fields: detonations in relativistic fluid dynamics and radiative energy deposition by plasmonic nano-shells. The initial compression of the target pellet can be eliminated or decreased, not to reach instabilities. A final and more energetic laser pulse can achieve rapid volume ignition, which should be as short as the penetration time of the light across the target. In the present study, we discuss a flat fuel target irradiated from both sides simultaneously. Here we propose an ignition energy with smaller compression, largely increased entropy and temperature increase, and instead of external indirect heating and huge energy loss, a maximized internal heating in the target with the help of recent advances in nano-technology. The reflectivity of the target can be made negligible, and
        the absorptivity can be increased by one or two orders of magnitude by plasmonic nano-shells embedded in the target fuel. Thus, higher ignition temperature and radiation dominated dynamics can be achieved. Here most of the interior will reach the ignition temperature simultaneously based on the results of relativistic fluid dynamics. This makes the development of any kind of instability impossible, which up to now prevented the complete ignition of the target.

        Speaker: Laszlo P. Csernai (University of Bergen)
    • 10:30 AM
      Coffee Break
    • Session 1: Strongly Correltad Systems
      Convener: Prof. Dénes Molnár (Purdue University)
      • 24
        Analysis of Monte-Carlo propagator data with deep neural networks

        In this contribution we compare deep learning techniques with traditional methods on the analysis of lattice Monte Carlo data. Specifically we investigate the reconstruction of the spectral function from the Euclidean 2-point correlation function measured on the lattice. The two quantities are related by an integral transformation and the inversion of this transform is made difficult by the noise and the relatively low number of data points. When an analytical form of the dependence is assumed, it still poses a challenge for traditional methods, because the coefficients must be strictly positive thus the fitting is a constrained minimization problem. We compare the performance of chi square and maximum entropy methods as well as deep neural networks on the problem.

        Speaker: Daniel Berenyi (Wigner RCP)
      • 25
        On efforts to improve dynamics of a classical particle in an external EM field

        The trajectory of both charged and neutral particles is determined by the influence of external EM fields. The interaction is either direct through the Lorentz force which dominates the dynamics of charged particles or indirect through higher order EM moments. For example, particles with a magnetic dipole moment are under the influence of a Stern-Gerlach-like force and similar interaction arises for particles possessing an electric dipole moment. In our recent work we addressed spin dynamics and motion of classical particles subjected to intense laser fields. Another opportunity for improving the standard Lorentz force dynamics arises from incorporating the effect of the radiative fields of the particle itself. Although this has been intensively studied in the past, we still don’t have a consistent formulation which would connect Maxwell equations with the particle dynamics. Our approach is to investigate the decomposition of the mass of the particle into a bare mass and a field component using a classical limit of a model interaction between a scalar field and an EM field.

        Speaker: Martin Formanek (University of Arizona)
      • 26
        QED vacuum structure in constant extreme EM fields

        QED vacuum structure is receiving today renewed experimental interest. Here we consider super critical constant macroscopic magnetic fields on magnetars and vacuum birefringence induced by laboratory magnetic fields as probes of the QED vacuum response. Several new vacuum effects have been recognized beyond Euler-Heisenberg effective action. We study radiative corrections relevant to field strengths probed by astronomical sources. We supplement the well-known electron loop action with virtual excitations of particles typically studied outside the domain of the QED vacuum effects. We investigate further a suggestion made by Weisskopf in regard to self-consistency of the effective action computation and extend these considerations to the case of particle producing electric fields.

        Virtual axion-like particle complement to Euler-Heisenberg-Schwinger action, Stefan Evans, Johann Rafelski Phys.Lett. B791 (2019) 331-334
        Vacuum stabilized by anomalous magnetic moment, Stefan Evans, Johann Rafelski Phys.Rev. D98 (2018) no.1, 016006

        Speaker: Mr Stefan Evans (Department of Physics, University of Arizona)
    • 12:20 PM
      Lunch Break
    • Open Discussion
    • 5:00 PM
      Coffee Break
    • Session 2: Strongly Correlated Systems
      Convener: Robert Vertesi (MTA Wigner RCP RMI)
      • 27
        Compact Ultradense Objects: Something Strange is Flying Around

        Where is the meteorite? Just maybe it went into the Earth: we consider compact ultra-dense objects (CUDO) meteors made predominantly of ultra dense matter such as STRANGElet = fragments of neutron stars filled with strange quarks, DARK MATTER bound objects, MICRO BLACK HOLES. For such exotic impactors each planet or moon is a macroscopic detector accumulating CUDO impact signature over geological time scale. Only a fraction of the CUDO kinetic energy is damaging the entry/exit surface regions since CUDOs high density of gravitating matter assures surface-penetrating puncture -- shot into, and even through, a moon or the planet. CUDOs could be the origin of hot-spots (random location shield volcanoes that are fed from depth of Earth across solid crust). Recent (geologically) CUDOs maybe recognized by impact (exit) features such as the cave in Pavonis Mons on Mars, and on Earth by coincident impactor with climatic excursions created by high atmosphere "volcanic" eruption (happening usually without a known volcano!). Rocky objects in solar system accumulate impact scars for billions of years. Asteroid belt could harbor captured CUDOS with 31 Polyhymnia a high density (75g/cc!) candidate and the "egg in space" offering another suspect case. Last not least, the Earth energy balance could depend on captured CUDOs.

        Come in good company, lecture to be entertaining and (mostly) non-technical, equations inadvertently appearing on slides will be (mostly) skipped.

        Speaker: Johann Rafelski (The University of Arizona)
    • 7:00 PM
    • 8:00 AM
    • New Directions & Future Prospects
      Convener: Dr Gergely Gábor Barnaföldi (Wigner RCP RMI of the Hungarian Academy of Sciences)
    • 10:30 AM
      Coffee Break
    • New Directions & Future Prospects
      Convener: Dr Gergely Gábor Barnaföldi (Wigner RCP RMI of the Hungarian Academy of Sciences)
    • 12:20 PM
      Lunch Break