SFB Meeting, March 06 DESY overview HEP research photon research Zeuthen recent developments Astroparticle physics, PITZ, XFEL, HPC U. Gensch, 20 March 2006 SFB-meeting

DESY – Deutsches Elektronen-Synchrotron DESY – a Centre of the Helmholtz Gemeinschaft Sites: Hamburg & Zeuthen Budget: 165 M€ (2005; basic)) Personal: 1560 ~ 100 PhD students ~ 100 Postdocs > 100 apprentices - close connections to universities - international used , national financed science centre U. Gensch, 20 March 2006 SFB-meeting

DESY - Research Facilities Particle Physics HERA ILC R&D ? ILC construction Photon Science DORIS PETRA as highest brilliance X-ray source VUV-FEL as research facility and ILC test bed European XFEL in Hamburg 1990 2000 2010 U. Gensch, 20 March 2006 SFB-meeting

HERA - succesful startup after shutdown; going to stop in 2007 Particle Physics HERA - succesful startup after shutdown; going to stop in 2007 ILC - active partner of the global initiative ( machine, detector, physics) , synergy with XFEL project HPC;ApeNext - NIC ( GSI joined NIC; new research groups/FZJ;GSI) 3 racks; 600 Tflops each; physics code on the machines External Experiment´s LHC TIER 2 center for german Universities DESY takes part in ATLAS & CMS Icecube - 8 strings deployed in winter 05/06 ! HEP strategy for Europe Strategy group of CC, open symposium at Orsay(Jan06) closed meeting May at Zeuthen  C Council Lisboa; July U. Gensch, 20 March 2006 SFB-meeting

HERA - succesful startup after shutdown; going to stop in 2007 Particle Physics HERA - succesful startup after shutdown; going to stop in 2007 - Hera experiments very successful in 2005 - shutdown 2005 HERMES recoil detector H1 FST/BST ZEUS – endcap - PRC/may06 e+/e- ; low energy running U. Gensch, 20 March 2006 SFB-meeting

technically driven schedule Particle Physics ILC - Global Design Effort Formal organization started at LCWS 05 (Stanford) in March 2005 when B.Barish became director of the GDE technically driven schedule U. Gensch, 20 March 2006 SFB-meeting

Concept of baseline design - ready end 2005 ! (many similarities to TESLA TDR) two European sites for cost estimation (CERN&DESY) European Industry Forum for SC Acc. Technologies (XFEL + ILC) EU money for ILC - CARE (DESY coordinator- D.Proch) - EUROTEV ( coordinator – E.Elsen) - EUDET (coordinator – J.Mnich) 7 M€ from EU; 4 y ; 22 institutes

LHC: DESY participation in ATLAS and CMS Particle Physics LHC: DESY participation in ATLAS and CMS strong link toHERA Physics programme complementary to ILC Physics programme according to DESY´s relation to the German Univ. both DESY sites involved ! ATLAS + CMS TIER2 startup on low scale (no new additional ressources) trigger, DAQ, detector commissioning preparation of physics analysis more ressources – 2008/9 coordinators ATLAS – K.Mönig, M.Medinnis CMS - J.Mnich SFB (continuation) very important ! U. Gensch, 20 March 2006 SFB-meeting

Photon research PETRA III upgrade on schedule DORIS evaluation in 2007 ? VUVFEL - running user facility; - TTF-LINAC: part time R&D for ILC XFEL - MoU for preparation phase signed by 13 countries - legal procedure (PFV) near to end - availability of the site – HH, SFL negotiate - TDR accelerator - ready, review last week FEL - spring U. Gensch, 20 March 2006 SFB-meeting

Photon research Status of the new projects Stand der neuen Projekte im Photonenbereich Press communication of the BMBF; 22.2.2006

Accelerating Structures VUV-FEL Overview Laser Bunch Compressor bypass Undulators Collimator RF gun 5 MeV 127 MeV 370 MeV 445 MeV Accelerating Structures Diagnostics FEL diagnostics 300 m 30.08.2004: tunnel closed for commissioning Jan 2005: first lasing at 32 nm Aug 2005: first user exper.

VUV-FEL performance Spectral distribution Spatial profile max average single Spectral distribution 8-bunch operation (t=1 µs) Spatial profile 2Hz/multi-bunch (≤ 30) Parameter Expected (08.04) Measured Wavelength 30 nm 32 nm (27, 45 nm at lower int.) Pulse duration 15-50 fs 20-40 fs Pulse energy 50-150 µJ up to 130 µJ (mostly 5-10 µJ) at saturation onset of nonlinear regime Bandwidth 0.8% 0.5-1.0% Divergence 70-80 µrad < 150 µrad

Areas of Proposed Research User experiments Areas of Proposed Research Femtosecond time-resolved experiments synchronisation FEL - optical laser chemical reactions magnetism dynamics Interaction of ultra-intense XUV pulses with matter multiphoton excitation of atoms, molecules, clusters… plasma physics Investigation of extremely dilute samples free radicals mass selected clusters ions High-resolution spectroscopy nanometer focus meV-resolution photon and photoelectron spectroscopy of surfaces and solids with nm resolution

Pump-Probe Experiments in the Gas Phase M. Meyer et al. Cross-correlation of FEL and green laser pulse (12ps) in He FEL harmonics (~0.5 - 1%)

Summary of user experiments 14 user experiments had first beam 4 experiments for technical developments were performed user facility : beam allocation committee, responsiblities Most experiments are very complex and include many components  groups formed collaborations teams are much larger than at synchrotron radiation facilities First reports are very promising: commissioning of most experiments was quite successful although often difficult with present FEL beam conditions most experiments have taken first useful data demonstrating that their concepts work; data are currently evaluated Continuing implementation of data acquisition and diagnostics Further commissioning of the FEL: - tunable wavelengths - more power

Photon research - European XFEL project team head – M.Altarelli - TDR – review process - PFV – expected before summer Research at XFEL CFEL on DESY campus (Uni-MPG-DESY) W3 Professorships U. Gensch, 20 March 2006 SFB-meeting

XFEL MoU +China MoU signed by 13 countries

Europäisches Röntgenlaser-Projekt

Röntgenlaser-Labor in Schenefeld 3 km lang Undulatoren bis zu 300 m Länge Inbetriebnahme 2013 Wellenlänge 0.1-6 nm Femtosekunden-Pulse 109 höhere Spitzenbrillianz Phase I Phase II Untersuchung der Materialen mit atomarer Auflösung und der zeitlichen Änderungen ihrer Struktur

Zeuthen Personal matters Young Investigator Group/ astroparticle physics: E.Bernardini LHC coordination ATLAS: K.Mönig; M.Medinnis CMS : J.Mnich two joint appointments (W3 professorship) TUB + DESY : Accelerator Physics Uni Potsdam & DESY : Theoretical Astroparticle Physics U. Gensch, 20 March 2006 SFB-meeting

apeNEXT Status at DESY 3 racks installed (1 rack = 512 CPU = 0.6 TFlops) Tested by long (3-20 h) physics application programs running in replication mode Stable operation (mean time between intervents: >1 weeks) Soon: transition to user operation Application kernel performance 30-55% for assembly routines 30-45% for high level languages (to be improved)

Summary of the IceCube Construction IceTop tank 2004/2005 season New hot water drill First string deployed (60 OMs) Four IceTop stations (16 OMs) All 76 OM operating 2005/2006 season Drilling with design performance 8 strings deployed (480 OMs) 12 IceTop stations (48 OM) 604 total OMs ~6 OMs (likely) dead (1.%) AMANDA InIce string & IceTop 500 m

The IceCube km3 Detector InIce detector consisting of 70-80 strings with 60 modules each Horizontal spacing ~ 125 m Vertical spacing ~ 17 m Depth from 1450-2450 m Optimized for TeV-PeV E threshold ~ 50-100 GeV IceTop air shower, surface detector consisting of 70-80 stations AMANDA-II can be used as dense, low-energy inner detector Get IceTop threshold