1. Graphical representation and animations of
CERN physics and technologies
Rolf Landua
CERN
PH-EDU
IPPOG Meeting, 4 November 2011

2. GRAPHICAL REPRESENTATION OF “INVISIBLE” OBJECTS
PART 1 :
GRAPHICAL REPRESENTATION OF “INVISIBLE” OBJECTS
Guide lines
Logical and consistent use of ‘metaphors’ for particle properties
Appealing appearance - (even) for non-physicists
Same representation in 2D- and 3D-graphics
Object library for use in future graphics / animations

3. ....without or with sea quarks
Example: Many ways to represent a proton
....without or with gluons
....quarks visible or not
....without or with sea quarks
how to represent electrons, neutrinos?
Strong vs weak, electromagnetic charge?
Spin 1/2 vs Spin 1 ?

4. UP QUARK New scheme used for animations Weak charge (“up”)
*** draft version - not quite ready yet ***
Weak charge (“up”)
Colour (blue)
Electric charge
(+1, pink)
Spin 1/2
UP QUARK

5. Quark declination in ‘colour’ space
Green colour
Blue colour
Red colour

6. Weak and electric charge
Weak charge (“up”)
Weak charge (“down”)
UP QUARK:
Electric charge
(+ pink)
(- cyan)
DOWN QUARK

7. Quarks versus Leptons E-NEUTRINO UP ELEKTRON DOWN Electric charge 0
Colour charge 0
E-NEUTRINO UP
Electric charge -
Colour charge 0
ELEKTRON
DOWN

8. Three families of leptons1 1I
I1I
E-NEUTRINO
ELEKTRON
M-NEUTRINO
MUON
T-NEUTRINO
TAU

9. Anti-Quarks ANTI-UP UP ANTI-DOWN DOWN obtain by ‘hue inversion’
Anti-red
Red UP
ANTI-DOWN
DOWN

10. Anti-Leptons
E-ANTINEUTRINO
E-NEUTRINO
POSITRON
ELEKTRON

11. Field particles: PHOTON
Electric charge 0
Colour charge 0
Spin 1
M = 0

12. W- W+ Zo Field particles: ELECTROWEAK Photon Electric charge -
massless
Electric charge -
Electric charge + W- W+ Zo
massive

13. Field particles: GLUONS
Colour charge:
Red - Antiblue
Spin 1
M = 0

14. All gluon colour combinations

15. .... finally, the (elusive) HIGGS
Electric charge 0
Colour charge 0
Spin 0
massive

16. COMPOSED OBJECTS - THE PROTON

17. *** Low resolution version ***
PROTON: ANIMATION
*** Low resolution version ***

18. CERN WORKING GROUP ON ANIMATIONS
PART 2 -
CERN WORKING GROUP ON ANIMATIONS
Goals
Produce a consistent set of (3D) animations needed for
- press office / media
- new CERN movie for visits service
- visit point project and exhibitions
Composition (communication, education, ATLAS, CMS)
D. Barney
S. de Gennaro
D. Dominguez
S. Goldfarb
R. Landua
C. Marcelloni
L. McCarthy
J. Pequenao
C. Pralavorio

19. Topics ranked according to priority
1) Matter and forces
the main components (u,d,e,v)
forces: strong, electromagnetic, weak
how to build protons/neutrons/nuclei; atoms; transforming particles
heavy quarks, leptons; Higgs
2) The Higgs mechanism
3) Producing a Higgs particle in a p-p collision
4) How an LHC experiment ‘sees’ invisible particles
Higgs
Missing energy/momentum (‘SUSY, extra dimensions, etc’)
5) Evolution of the Universe
Matter-Antimatter (a)symmetry
Quark-Gluon Plasma
Nucleon formation
Nucleosynthesis
Recombination and CMB
Star and galaxy formation - role of dark matter

20. Topics ranked according to priority (2)
6) “Virtual tour of the CERN accelerator network”
7) “The World-wide LHC GRID - what it is, how it works”
8) “Computing - from the experiments to the discovery of new phenomena”
9) “How the LHC works - the main components and their function”
OTHER TOPICS (priority to be defined)
Matter-Antimatter asymmetry in Bd decay
Energy becomes mass - particles and antiparticles at CERN
Extra dimensions and black holes
Dark Matter - how we know it is there, how to find it at CERN
Supersymmetry: what is - and why we think we need it
Particle detectors - how they work, how they are used
(Si strips, pixels, tracking; calorimeters; RPC, drift tube, CSC, alignment/calibration)
Gauge symmetries and heavy bosons (old and new), Z’
Compositeness (preons)
Technicolor (composite Higgs, techni-particles)
4th Generation

21. ANIMATION GROUP : Work flow
PHASE 1 - DEVELOPMENT: Conceptualization (brainstorming), script
PHASE 2 - PRE-PRODUCTION : Story board, animatic (rough animated version), design chart
PHASE 3 - PRODUCTION: Modeling, materials, shaders, textures; layouts, animations, lighting
PHASE 4 - POST-PRODUCTION: Final rendering, compositing (layers), editing, sound, credits

22. ANIMATION GROUP : Work flow (example)
Structure of matter (part 1: conceptualization)

23. Story board (beginning ...)

24. That’s all for now ... watch this space.