Graphical representation and animations of

CERN physics and technologiesRolf Landua

CERNPH-EDU

IPPOG Meeting, 4 November 2011

Guide lines

Logical and consistent use of ‘metaphors’ for particle properties

Same representation in 2D- and 3D-graphics

PART 1 :

GRAPHICAL REPRESENTATION OF “INVISIBLE” OBJECTS

Object library for use in future graphics / animations

Appealing appearance - (even) for non-physicists

Example: Many ways to represent a proton

....without or with gluons

how to represent electrons, neutrinos?Strong vs weak, electromagnetic charge?Spin 1/2 vs Spin 1 ?

....quarks visible or not

....without or with sea quarks

New scheme used for animations *** draft version - not quite ready yet ***

UP QUARK

Electric charge (+1, pink)

Spin 1/2

Colour (blue)

Weak charge (“up”)

Blue colour Green colour Red colour

Quark declination in ‘colour’ space

Weak and electric charge

Weak charge (“up”)

Weak charge (“down”)

Electric charge (+ pink)

Electric charge (- cyan)

UP QUARK:

DOWN QUARK

Quarks versus Leptons

UP

DOWN

Electric charge 0 Colour charge 0

E-NEUTRINO

Electric charge - Colour charge 0

ELEKTRON

Three families of leptons

E-NEUTRINO

ELEKTRON

M-NEUTRINO

MUON

T-NEUTRINO

TAU

1 1I I1I

Anti-Quarks

UP

DOWN

obtain by ‘hue inversion’

ANTI-DOWN

ANTI-UP

Anti-redRed

Anti-Leptons

E-NEUTRINO

ELEKTRON

E-ANTINEUTRINO

POSITRON

Field particles: PHOTON

Spin 1 Electric charge 0 Colour charge 0

M = 0

Field particles: ELECTROWEAK

Photon

massless

Electric charge - Electric charge - Electric charge +

W- W+Zo

massive

Field particles: GLUONS

Spin 1

M = 0

Colour charge:Red - Antiblue

All gluon colour combinations

.... finally, the (elusive) HIGGS

Spin 0Electric charge 0 Colour charge 0

massive

COMPOSED OBJECTS - THE PROTON

PROTON: ANIMATION*** Low resolution version ***

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. BarneyS. de Gennaro D. DominguezS. GoldfarbR. Landua

C. MarcelloniL. McCarthy J. PequenaoC. Pralavorio

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

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

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

Structure of matter (part 1: conceptualization)

ANIMATION GROUP : Work flow (example)

Story board (beginning ...)

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