the Higgs boson at the Large Hadron Collidervjm/Home/CV_files/Dunbar... · 2017-09-01 · A Higgs...
36
Searching for that God(-Damn) Particle: the Higgs boson at the Large Hadron Collider Dr Victoria Martin University of Edinburgh http://www.ph.ed.ac.uk/higgs http://www.atlas.ch / 1
Transcript of the Higgs boson at the Large Hadron Collidervjm/Home/CV_files/Dunbar... · 2017-09-01 · A Higgs...
Searching for that God(-Damn) Particle: the Higgs boson at the Large Hadron Collider
Dr Victoria MartinUniversity of Edinburgh
http://www.ph.ed.ac.uk/higgshttp://www.atlas.ch/
1
2
z
3
z
W Z g γForce Carriers
3
4
z
HHiggs Boson
5
z
W Z g γForce Carriers
HHiggs Boson
5
A Higgs Boson Recipe
6
A Higgs Boson Recipe
1.Take two very high energy protons (fresh from CERN).
6
A Higgs Boson Recipe
1.Take two very high energy protons (fresh from CERN).
2.Smash together.
6
A Higgs Boson Recipe
1.Take two very high energy protons (fresh from CERN).
2.Smash together.3.One in 1010 collisions will form a Higgs particle.
6
A Higgs Boson Recipe
1.Take two very high energy protons (fresh from CERN).
2.Smash together.3.One in 1010 collisions will form a Higgs particle.
4.Once formed, the Higgs particle will decay after 10−22 seconds.
6
A Higgs Boson Recipe
1.Take two very high energy protons (fresh from CERN).
2.Smash together.3.One in 1010 collisions will form a Higgs particle.
4.Once formed, the Higgs particle will decay after 10−22 seconds.
5.Assemble a highly sophisticated, state-of-the-art detector around the collision point.
6
A Higgs Boson Recipe
1.Take two very high energy protons (fresh from CERN).
2.Smash together.3.One in 1010 collisions will form a Higgs particle.
4.Once formed, the Higgs particle will decay after 10−22 seconds.
5.Assemble a highly sophisticated, state-of-the-art detector around the collision point.
6.Observe the particles produced from the Higgs boson decay.
6
A Higgs Boson Recipe
1.Take two very high energy protons (fresh from CERN).
2.Smash together.3.One in 1010 collisions will form a Higgs particle.
4.Once formed, the Higgs particle will decay after 10−22 seconds.
5.Assemble a highly sophisticated, state-of-the-art detector around the collision point.
6.Observe the particles produced from the Higgs boson decay.
7.Repeat 25 million times a second for ~1.5 years.
6
7
7
7
7
8
9
10
11
12
13
14
https://twiki.cern.ch/twiki/pub/AtlasPublic/HiggsPublicResults//Hgg-FixedScale-Short2.gif
https://twiki.cern.ch/twiki/pub/AtlasPublic/HiggsPublicResults//4l-FixedScale-NoMuProf2.gif
15
16
The Higgs Mechanism1. Physicists at a conference reception; all free to move around the room.
17
The Higgs Mechanism1. Physicists at a conference reception; all free to move around the room.
17
The Higgs Mechanism1. Physicists at a conference reception; all free to move around the room.
2. In comes a noble prize winner; everyone wants to speak to him.The physicists crowd around him. The noble laureate is not free to move around; he has gained inertia by interacting with the crowd.
17
The Higgs Mechanism1. Physicists at a conference reception; all free to move around the room.
2. In comes a noble prize winner; everyone wants to speak to him.The physicists crowd around him. The noble laureate is not free to move around; he has gained inertia by interacting with the crowd.
This is analogous to how the particles acquire mass: by interacting with the Higgs field. Laureates of different popularity gain different masses.
17
The Higgs Boson3. The next evening; physicists enjoying another drink.A rumour enters the room: the keynote speaker tomorrow will announce the discovery of a new particle!
18
The Higgs Boson3. The next evening; physicists enjoying another drink.A rumour enters the room: the keynote speaker tomorrow will announce the discovery of a new particle!
18
The Higgs Boson3. The next evening; physicists enjoying another drink.A rumour enters the room: the keynote speaker tomorrow will announce the discovery of a new particle!
4. The physicists gather together to spread the rumour. The group of physicist acquire inertia.
18
The Higgs Boson3. The next evening; physicists enjoying another drink.A rumour enters the room: the keynote speaker tomorrow will announce the discovery of a new particle!
4. The physicists gather together to spread the rumour. The group of physicist acquire inertia.
The clustering of the field of physicists is as if a new massive particle has formed. This is the Higgs boson.
18
![Combined Measurement of the Higgs Boson Mass in pp s¼ 7 ...122.physics.ucdavis.edu/course/cosmology/sites/default/files/files/higgs-expt.pdfHiggs boson H [1–6], whose mass mH is,](https://static.fdocument.org/doc/165x107/5f2f68ecca52712948064ba1/combined-measurement-of-the-higgs-boson-mass-in-pp-s-7-122-higgs-boson-h-1a6.jpg)
