1 / 13

Joachim Stroth Johann Wolfgang Goethe-Universitaet (IKF)

Helmholtz International Center for FAIR Perspectives for hadron and nuclear matter physics with PANDA and CBM. Joachim Stroth Johann Wolfgang Goethe-Universitaet (IKF). Hadron and Nuclear Matter Physics at FAIR. FAIR will provide intense beams of stored and cooled antiprotons,

lita
Download Presentation

Joachim Stroth Johann Wolfgang Goethe-Universitaet (IKF)

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Helmholtz International Center for FAIRPerspectives for hadron and nuclear matter physics with PANDA and CBM Joachim Stroth Johann Wolfgang Goethe-Universitaet (IKF)

  2. Hadron and Nuclear Matter Physics at FAIR • FAIR will provide intense beams of • stored and cooled antiprotons, • slowly extracted heavy ions, • and, due to the storage and stretcher ring concept, a • a high degree of parallel running! • Two general purpose experiments will operate at interaction rates of up to 10 MHz. • New detector concept: • Self triggered detectors/read-out systems with time stamping. • Highly-parallel read-out and real-time feature extraction for higher level event selection. CBM – Nuclear Matter Physics PANDA – Hadron Physics Joachim Stroth

  3. p Momentum [GeV/c] 0 2 4 6 8 10 12 15 ΛΛ ΣΣ ΞΞ ΩΩ DD ΛcΛc ΣcΣc ΞcΞc ΩcΩc DsDs qqqq ccqq nng,ssg ccg nng,ssg ccg ggg,gg ggg light qq π,ρ,ω,f2,K,K* cc J/ψ, ηc, χcJ 1 2 3 4 5 6 Mass [GeV/c2] The Physics Program of PANDA • Meson spectroscopy • light mesons • charmonium • exotic states • glueballs • hybrids • molecules/multiquarks • open charm • Baryon/antibaryon production • Charm in nuclei • Double L Hypernuclei • Time-like electromagneticform factors of the proton • Generalized Parton Distributions Joachim Stroth

  4. The Physics Program of CBM • Deconfinement phase transition at high B • excitation function and flow of strangeness (K, , , , ) • excitation function and flow of charm (J/ψ, ψ', D0, D, c) • melting of J/ψ and ψ' • QCD critical endpoint • excitation function of event-by-event fluctuations (K/π,...) • The equation-of-state at high B • collective flow of hadrons • particle production at threshold energies (open charm?) • Onset of chiral symmetry restoration at high B • in-medium modifications of hadrons (,, e+e-(μ+μ-), D) Joachim Stroth

  5. HIC for FAIR and Theory Development of an improved microscopic transport code Emphasis on • Coverage of all stages: • initial phase • dense phase • hadronization • Treatment of rare processes: • virtual photon emission • heavy quark propagation Strategy • Hybrid Approach • Inclusion of QGP phase Joachim Stroth

  6. HIC for FAIR and Theory Foster Lattice QCD at the Hessian Universities Emphasis on: • Hadron properties at realistic quark masses • chiral extrapolations • heavy-light systems, QCD exotica • QCD thermodynamics at finite mB • location and order of phase transition • existence/location of critical point Joachim Stroth

  7. HIC for FAIR and Experiments HIC for FAIR will provide: • Theoretical guidance for trigger strategies • Solutions for high-performance computing • Optimized algorithms for feature extraction • Simulation and design for detector R&D • Simulation and analysis frameworks for performance studies Examples: • Sophisticated event generators • UrQMD, HSD • PLUTO • High speed tracking • Secondary decay vertex reconstruction • FAIR Root Joachim Stroth

  8. High-speed Track Reconstruction • CBM will record up to one Billion tracks per second in the compact silicon tracking station. • Fast track reconstruction • Optimal control of alignment • Speedup by factor 120.000 in track reconstruction • optimized code • port to cell processor • parallel processing Joachim Stroth

  9. Concepts for Fast Feature Extraction PANDA: • Dedicated hardware based on FPGAs and ATCA backbone. • Flexible interconnection with highest bandwidth. CBM: • Commodity hardware (GPU, many core CPUs) • High level programming language supporting multi-core architecture Challenge! • How to port sophisticated algorithms developed in C++ to dedicated hardware. • cell processor • many core CPUs • graphics processing untis • FPGAs (Virtex, Lattice etc.) Intel Polaris 80 core CPU2 TFlop on a chip GeForce 9600 64 core GPU Joachim Stroth

  10. Ultra-thin Vertex Detectors • Find displaced decay vertex in an environment of hundreds of charged tracks. • Needs highest sensitivity: • ultra-thin detectors • position resolution in the micron region • Many technological challenges in system integration identical in CBM, PANDA and NUSTAR • low-mass data read-out • low-mass heat evacuation • operation in vacuum • mechanical rigidity • dynamic instabilities Joachim Stroth

  11. CBM (running the charm experiment) will produce 1 TByte data per hour! Data Volumes (Experiment) *worst case: J/Y measurement Joachim Stroth

  12. Experiment DAQ Integrated Simulation & Analysis Package GByte/s theory mass storage list mode data simulation event generator calibration exp./sim. DST track propagation(GEANT) track reconstruction PBytes based on ROOT framework digitizers higher level analysis correction for detector response data base CAD model observables Joachim Stroth

  13. Summary will • provide optimal support in computing relevant issues of detector R&D. • prepare software frame work for day one data analysis. • improve theories and models for guidance and relevant interpretation of experimental results. Joachim Stroth

More Related