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a level physics notes on Unit 10 - Probing the heart of matter (PRO) AKA nuclear and particle physics

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these are my notes on Unit 10 - Probing the heart of matter (PRO) AKA nuclear and particle physics well written and laid out i am predicted an A* in a level physics compatible with edexcel a level or AS level physics students

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, QUARKS LEPTONS
Q Q

us
-



t e 1
M -
1 x

d- S b Ve o VuO Ve



T T
t




HADRONS are made of quarks


↓ -
MESON-quark & anti-quark Pair
BARYONS- made of 3 quarks
-




Proton- und u nd
neutron :
Udd -



I =
-




3
-


5
*

, THE STANDARD MODEL
All particles of matter are made
from QUARKS and/or LEPTONS -




categorised by &
charge mass

interact with other
>
Interact with
-

>
- Particles via EM

HADRONS the strong
nuclear force LEPTONS or
gravitational
interactions
are made of quarks fundamental particles (not made


↓ I of particles
quarks or other

electron (e)
(Ve)
On
electron Neutrino

3 quarks quark antiquark Pair muon (mt
· PROTONS (p) ·
PIONS (n )
+
muon neutrino (Vm)
(n) KAONS (k )
*

·
NEUTRONS ·




↓ muons are 200 x bigger than electrons
,
P : und -- : nd both le
have
charges of
n : upd
Neutrinos have zero charge
↑ negligible mass
ANTI-HADRONS
↓ Y
YOU CAN'T HAVE A
A-BARYONS ANTI-MESON
COMBINATION Of QUARKS
#



·
anti-protons (P) ·
anti-pions (r)
·
anti-neutrons (n) · anti-Kaons (K) AND ANTI-QUARKS



PHOTONS are GROUPS of particles
zero mass
& The EXCHANGE PARTICLE
·




for the EM force
·
medidate one of the fundamental forces (EM)
il : electrostatic repulsion
=
exchanging photons


Then
, all matter particles have antimatter counterparts
↓ IDENTICAL except they are the OPPOSITE CHARGE


THE SYMMETRY OF THE STANDARD MODEL
The first 4 guarks
discovered were Up




7
: ·




·
down The symmetry of U +
ze( + 2 + +
e
.




Strange
· these
properties predicted
the 3rd ot
generation
·
charm
Particles (too bottom)
d "e Steb- Ye



beach have a
corresponding
antiparticle i with
.
eg
the opposite charge

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