Danish Teachers, CERN, 23 Oct 2007Børge Svane Nielsen, NBI1 The primordial ’soup’ of QUARKS and GLUONS Can we make and study it on earth? M. Turner Natl.

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Presentation transcript:

Danish Teachers, CERN, 23 Oct 2007Børge Svane Nielsen, NBI1 The primordial ’soup’ of QUARKS and GLUONS Can we make and study it on earth? M. Turner Natl. Geog. Mag. J. Harris, Yale Our Hadron World: NOW Quark Gluon Plasma in Universe: t < sec Quark-Gluon Plasma: OUR PAST

Danish Teachers, CERN, 23 Oct 2007Børge Svane Nielsen, NBI2 Searching for the Quark Gluon Plasma: Ultra Relativistic Collisions URQMD H. Stöcker et al

Danish Teachers, CERN, 23 Oct 2007Børge Svane Nielsen, NBI3 Do we form a Quark Gluon Plasma?

Danish Teachers, CERN, 23 Oct 2007Børge Svane Nielsen, NBI4 The traces of the Little Big Bang E=Mc 2 => ’Create’ Matter & Antimatter ’New Math’ => =7000

Danish Teachers, CERN, 23 Oct 2007Børge Svane Nielsen, NBI5 The basic building blocks of nature: the Standard Model PARTICLESFORCES

Danish Teachers, CERN, 23 Oct 2007Børge Svane Nielsen, NBI6 Quark ’Lego’. Explains present complex particles

Danish Teachers, CERN, 23 Oct 2007Børge Svane Nielsen, NBI Nobel prize: Theory of QCD F. Wilczek D. Gross H. Politzer The STRONG force: Quarks are confined The quark-quark potential 2m q c 2 Baryon Meson Cannot make free quarks this way => Need short distance, large density QGP

Danish Teachers, CERN, 23 Oct 2007Børge Svane Nielsen, NBI8 The PHASES of Nuclear Matter

Danish Teachers, CERN, 23 Oct 2007Børge Svane Nielsen, NBI9

Danish Teachers, CERN, 23 Oct 2007Børge Svane Nielsen, NBI10 Brookhaven Natl Lab. New York, USA BRAHMS

Danish Teachers, CERN, 23 Oct 2007Børge Svane Nielsen, NBI11 BRAHMS The forward experiment

Danish Teachers, CERN, 23 Oct 2007Børge Svane Nielsen, NBI oktober 2007Kulturnat Jens Jørgen Gaardhøje, Niels Bohr Institute12 NYT + others scan

Danish Teachers, CERN, 23 Oct 2007Børge Svane Nielsen, NBI13 Large Hadron Collider (LHC) CERN, Genève, CH. Large Hardron Collider LHC : 27 km will collide lead nuclei : Pb + Pb at 2750 AGev AGeV Maximum available energy for particle production in each collision: 1,114,000 GeV (= 0,1 mJoule. Each nuclear collision equivalent to 1 mg hitting a wall at 50 km/hr) But the energy is concentrated in a volume of less than m 3 !  Highest ENERGY DENSITY ever produced.

Danish Teachers, CERN, 23 Oct 2007Børge Svane Nielsen, NBI14

Danish Teachers, CERN, 23 Oct 2007Børge Svane Nielsen, NBI15 ALICE experiment at CERN’s new LHC accelerator will record up to particle pr. collision.

Danish Teachers, CERN, 23 Oct 2007Børge Svane Nielsen, NBI16

Danish Teachers, CERN, 23 Oct 2007Børge Svane Nielsen, NBI17

Danish Teachers, CERN, 23 Oct 2007Børge Svane Nielsen, NBI18

Danish Teachers, CERN, 23 Oct 2007Børge Svane Nielsen, NBI19

Danish Teachers, CERN, 23 Oct 2007Børge Svane Nielsen, NBI20

Danish Teachers, CERN, 23 Oct 2007Børge Svane Nielsen, NBI21

Danish Teachers, CERN, 23 Oct 2007Børge Svane Nielsen, NBI22 Up to particles produced in each collision in ALICE collisions per second, for seconds each year. => Millions of GigaBytes to be stored and analyzed.

Danish Teachers, CERN, 23 Oct 2007Børge Svane Nielsen, NBI23 … ready to take first data from the summer A bientôt…

Danish Teachers, CERN, 23 Oct 2007Børge Svane Nielsen, NBI24 HEHI and ALICE The ALICE TPC laser and FMD detector TPC laser FMD

Danish Teachers, CERN, 23 Oct 2007Børge Svane Nielsen, NBI25 TPC laser calibration μJ/pulse,   1 mm 266 nm, 100 mJ/pulse, 5 ns pulse,   25 mm 1.5 mm 336 laser tracks in TPC 25 mm

Danish Teachers, CERN, 23 Oct 2007Børge Svane Nielsen, NBI26 Optical components outside TPC volume Optics holders all designed and produced at NBI workshop

Danish Teachers, CERN, 23 Oct 2007Børge Svane Nielsen, NBI27 Installation at CERN

Danish Teachers, CERN, 23 Oct 2007Børge Svane Nielsen, NBI28 Analysis of data from TPC commissioning Measured side A Design side A we are starting offline analysis of the laser data to characterize the laser tracks and look at TPC distortions … and preparing to install two lasers and electronics in the ALICE experiment

Danish Teachers, CERN, 23 Oct 2007Børge Svane Nielsen, NBI29 FMD: Si strip detector FMD3 FMD1FMD2 3 inner rings: 20 φ sectors, 512 strips 2 outer rings: 40 φ sectors, 256 strips Total 51,200 strips

Danish Teachers, CERN, 23 Oct 2007Børge Svane Nielsen, NBI30 Silicon sensors and hybrids Sensors from Hamamatsu Photonics Hybrids from Ideas AS, Oslo Hybrid FEE VA-ALICE 128 channel preamplifier Wire bonds

Danish Teachers, CERN, 23 Oct 2007Børge Svane Nielsen, NBI31 Module production Module gluing in Copenhagen Bonding at CERN

Danish Teachers, CERN, 23 Oct 2007Børge Svane Nielsen, NBI32 Test beam at Astrid ring 680 MeV e - beam 5 FMD modules (5120 channels) Beam test with 5 complete modules (equivalent to a full inner half-ring) Complete read-out chain used Digitizer board RCU board

Danish Teachers, CERN, 23 Oct 2007Børge Svane Nielsen, NBI33 Assembly of FMD3 cone and FMD2 at NBI

Danish Teachers, CERN, 23 Oct 2007Børge Svane Nielsen, NBI34 Assembly of FMD3 cone and FMD2 at NBI

Danish Teachers, CERN, 23 Oct 2007Børge Svane Nielsen, NBI35

Danish Teachers, CERN, 23 Oct 2007Børge Svane Nielsen, NBI36 Moving to CERN

Danish Teachers, CERN, 23 Oct 2007Børge Svane Nielsen, NBI37 Installation of FMD3 in ALICE ALICE seen from outside and inside

Danish Teachers, CERN, 23 Oct 2007Børge Svane Nielsen, NBI38 Installation of FMD3 in ALICE FMD3 day =Friday, 13. April 07

Danish Teachers, CERN, 23 Oct 2007Børge Svane Nielsen, NBI39 FMD in ALICE FMD3 installed and ready FMD2 to be installed 24 June, FMD1 still to be constructed, … and still lots of cabling and testing before first beam next summer ….

Danish Teachers, CERN, 23 Oct 2007Børge Svane Nielsen, NBI40 Let’s go visit ALICE ……