three generations of matter
DESCRIPTION
Quarks come in six different types, with six antipartners . On the A-level syllabus, you need to know about three: up, and down (which make up everyday matter), and strange. The other three are called charm, top and bottom. Three generations of matter. Source: the Particle Adventure. - PowerPoint PPT PresentationTRANSCRIPT
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Quarks come in six different types, with six antipartners. On the A-level syllabus, you need to know about three: up, and down (which make up everyday matter), and strange.
The other three are called charm, top and bottom.
![Page 3: Three generations of matter](https://reader033.vdocument.in/reader033/viewer/2022061615/56815bdf550346895dc9cf8b/html5/thumbnails/3.jpg)
Three generations of matter
Source: the Particle Adventure
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Protons and Neutrons: the most common hadrons
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Types of particle
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How to make a hadron
Colour ChargeElectric Charge
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So how do we find quarks?
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Conservations
Charge Baryon number
Lepton number
Strangeness ?
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Decays
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Weak decay
In weak decay, you can ‘swap’ a down or strange quark for an up
quark. This process creates one new pair of particles to conserve charge.
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Strong decay
In strong decay, the quarks in the initial particle are rearranged to
make different particles. But quark-antiquark pairs can be created, so long as they are of the same type.
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Quark flow diagrams
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How forces work
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Any questions?