Martalosada 100322123912-phpapp02
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Martalosada 100322123912-phpapp02 Martalosada 100322123912-phpapp02 Presentation Transcript

  • El Experimento ATLAS: Ciencia y TICs M. Losada
  • ATLAS en el Mundo
    • Datos
      • 37 pa í ses
      • 174 instituciones
      • 2700 integrantes
      • 1800 con Ph.D.
      • 349 mujeres
      • 15.6% mujeres
  • EL PROYECTO LHC
  • 50-150 m de profundidad 27 km de circunferencia
  • Progreso en nuestro conocimiento de la materia El protón, de hecho, no esta solamente formado por tres quarks (uud)‏ Realmente hay 3 quarks de valencia (uud) + un “mar” de gluones y parejas quark-antiquark de vida corta
  • Part í culas y Campos elementales (Los constituyentes de la materia)‏ 10 -9 m 10 -10 m 10 -15 m PS 10 -18 m 10 -14 m
  • Unificación de las fuerzas fundamentales
  • No sabemos todo! Porqu é tres generaciones? Supersimetría? El origen de la masa? Bosón de Higgs? El LHC ayudar á a resolver todos estos misterios
  • Porqu é aceleradores?   Investigación en física de Partículas Aceleradores y detectores Microscopios Telescopios ópticos y radiotelescopios Binoculares La astrofísica estudia la materia en sus d imensiones m á s g randes La física de partículas estudia la materia en sus dimensiones m á s ínfimas
  • ATLAS Barrel Toroid coil transport and lowering into the underground cavern
  • Colisiones en el LHC
  • Trigger and Data Acquisition Reducir rata de 40 MHz a 200Hz reteniendo los eventos interesantes que son raros 200Hz bytestream de 1.6MB de “raw data” , que llegan a ser 30TB/dia.
    • Level 1 decision based on data from calorimeters and muon trigger chambers; synchronous at
    • 40 MHz
    • Level 2 uses Regions of Interest identified by Level-1
    • (< 10% of full event) with full granularity from
    • all detectors
    • Event Filter has access to full event and can perform more refined event reconstruction
    Software Hardware
  • Worldwide LHC Computing Grid (WLCG)‏ GRID computing developed to solve problem of data storage and analysis LHC data volume per year: 10-15 Petabytes Web p ública approx. 8 TB One CD has ~ 720 Mbyte 10 9 MB = 10 15 Byte (Note: the WWW is from CERN... )‏ WLCG is a worldwide collaborative effort on an unprecedented scale in terms of storage and CPU requirements, as well as the software project’s size Concorde (15 Km)‏ Balloon (30 Km)‏ CD stack with 1 year LHC data! (~ 20 Km)‏ Mt. Blanc (4.8 Km)‏ 50 CD-ROM = 35 GB 6 cm
  • WLCG Grid
    • Tier-0 (CERN):
      • Data recording
      • First-pass reconstruction
      • Data distribution
    • Tier-1 (11 centres):
    • Permanent storage
    • Re-processing
    • Analysis
    • Tier-2 (>200 centres):
    • Simulation
    • End-user analysis
  • Worldwide LHC Computing Grid
    • LCG/EGEE/OSG e-Science Grid is in production:
      • World-wide Coverage
      • Over 200 sites
      • > 20’000 CPUs
      • Multi-petabyte storage
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  • Primeras Colisiones 2009/2010
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  • H  ZZ  4  “ Gold-plated” channel for Higgs discovery at LHC Simulation of a H   ee event in ATLAS Physics example e,  Z e,  e,  e,  m Z H g g t Z (*)‏
  •  
  • Prestación de Servicios HPC Muchos procesos investigativos, independiente del área que trate, requiere servicios computacionales de alto desempeño . Ejemplos: medicina, geociencias,etc etc
  • La estrategia propuesta se basa en una combinación de tres modelos existentes: Cluster Computing (UAN), Grid Computing (UAN+) y servicios Cloud Computing. Internet + Internet2
  • Gracias!!
  • Backup slides
  •  
  • Typical Elements of a Collider Detector