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The Large Hadron Collider and “Higgs Hunters”

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Presentation on theme: "The Large Hadron Collider and “Higgs Hunters”"— Presentation transcript:

1 The Large Hadron Collider and “Higgs Hunters”
Professor Alan Barr Professor of Particle Physics University of Oxford (Merton College)

2 Introduction to Higgs Hunters
What the universe is made of Using colliders to understand the universe Goals of the Higgs Hunters project

3 Image © Adam Chandler Photography

4 Everything is made of atoms
Electron Neutron Proton Not to scale!

5 Quarks Protons and neutrons are each made up of 3 quarks uud Proton
udd Neutron

6 Twelve types of matter particle
u Quarks d c s t b Leptons νe νμ ντ e μ τ

7 Mass

8 The need for a Higgs Particle

9 The Large Hadron Collider

10

11 Proton Proton New Particle Debris Debris

12

13 4th July 2012

14 Proton Proton Higgs boson Debris Debris

15 Proton Proton Higgs boson Debris Baby Higgs? Debris Baby Higgs?

16 HiggsHunters.org project
Images made available to public Some real collisions Some with simulated “Baby Higgs” decays Volunteers classified them Asked them to look for two things: Off-centre vertices (Evidence for Baby Higgs bosons) Anything “weird”

17

18 Off-centre vertex

19 Some questions Are our volunteers actually good at spotting off-centre vertices? Check in the simulated “Baby Higgs” images Are there really Baby Higgs bosons? (Use the collision images rather than simulation!)

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