Table of Contents

Welcome!

Welcome to ALICE Blender Animation Webpage! This site was created with the intent of publishing results of the ALICE Blender Animation project, available on its Github repository. Stick around to check out ALICE particle collision events in 3D!

Description

This project generates 3D animations of particle collision events, from LHC’s ALICE detector, using data available at CERN’s Open Data Portal. Several bits of code run in order to extract relevant information about the events, create animated scenes with Blender, a free and open source software for 3D modeling, and render them into videos. Check out the Github repository for more information.

Project contributors: Breno Lemos, Lucas Schnorr, Rafael Pezzi

Location: Centro de Tecnologia Acadêmica (CTA) - Instituto de Física, UFRGS - RS/Brazil

Animations

Check below for further information on each category.

Samples by type and multiplicity

Pb-Pb 2.76 TeV Low Multiplicty

Pb-Pb 2.76 TeV Mid Multiplicty

Pb-Pb 2.76 TeV High Multiplicty

Pb-Pb 2.76 TeV Minimum Bias

p-p 7 TeV Low Multiplicty

p-p 7 TeV Mid Multiplicty

p-p 7 TeV Minimum Bias

Samples with high average z-momentum (Pz)

Samples with detailed TPC

Sample with no detectors

Different cameras

Video Descriptions

Samples by type and multiplicity

These clips are sorted by type of collision, which refers to either Pb-Pb collisions (Lead ions) or p-p collisions (protons); and multiplicity, which is the number of particles in the event.

Pb-Pb 2.76 TeV Low Multiplicty

Minimum multiplicity: 20

Maximum multiplicity: 50

Number of events: 51

Pb-Pb 2.76 TeV Mid Multiplicty

Minimum multiplicity: 50

Maximum multiplicity: 2000

Number of events: 65

Pb-Pb 2.76 TeV High Multiplicty

Number of particles: 4957

Number of events: 1

Pb-Pb 2.76 TeV Minimum Bias

These clips were freely selected from a sample of Pb-Pb collisions, therefore containing a wide range of multiplicities.

Number of events: 14

p-p 7 TeV Low Multiplicty

Minimum multiplicity: 20

Maximum multiplicity: 50

Number of events: 60

p-p 7 TeV Mid Multiplicty

Minimum multiplicity: 50

Maximum multiplicity: 2000

Number of events: 60

p-p 7 TeV Minimum Bias

These clips were freely selected from a sample of p-p collisions, therefore containing a wide range of multiplicities.

Number of events: 20

Samples with high average z-momentum (Pz)

These clips were generated with the setting of minimum average Pz (momentum in the z-direction) equal to 1.0 GeV/c. That means the average of the z-component momentum of all particles has absolute value greater than 1 GeV/c, which is likely to select events with boosts of particles to one side or another.

Number of events: 13

Samples with detailed TPC

These clips have the detailed version of the Time Projection Chamber (TPC), as a courtesy of researcher Stefan Rossegger.

Pb-Pb 2.76 TeV

Number of events: 9

Sample with no detectors

This is a sample of a couple of clips with no detector parts.

Number of events: 2

Different cameras

These clips were generated with different cameras than the usual.

Number of events: 5

General Settings

All clips above are compositions of animations generated with the following settings, unless specified otherwise:

Transparency Parameter: 1

Duration: 5 (seconds)

Particle Radius Scale: 1

Resolution: 100

FPS: 24

Cameras: OverviewCamera BarrelCamera Moving1Camera ForwardCamera

Mosaic: true

Background Shade: 0 (totally black)

Detectors:

Building ITS

Building TPC

Building TRD

Building EMCAL