Particles Flashcards
State the quark composition of a meson
Quark and anti quark
K- baryon number
0
K- quark composition
Anti up and strange
Which interaction is responsible for this decay
Weak
State 2 quantities that are conserved and 1 that is not
C:baryon
C:charge
N: strangeness
Complete the equation
K- ——-> pion + e- + anti electron neutrino
Complete the table
Weak W+ W- z0
Electromagnetic photon
Proton quark composition
Uud
What is electron capture
When an unstable atom becomes more stable by taking an electron from a shell
Feynman diagram electron capture
N. Be
P. E-
Fundamental force and its exchange particle
Weak interaction
Z0
What role do exchange particles play in an interaction.
They can transfer energy and momentum
Identify all examples
Hadrons p anti-n pion
Lepton ve e+ u-
Antiparticle anti n e+
Charged p e+ u-
Show this collision obeys
K + p = n + pion
B 0. 1. 1. 0
L. 0. 0. 0. 0
C 0. 1. 0. 1
Right down the quark structure
K0 anti strange down
Pion plus up anti down
P Urdu
Complete the table
Proton +1 1
-1 1
Pion plus +1
I
Give one baryon abs it’s anti particle
Proton
Anti proton
State the quark composition of an anti baryon
3 anti quarks
What is the same abs what is different about a particle and it anti particle
Mass same
Charge different
Name 2 baryons
Proton neutron
Quark structure of pion plus
u anti d
One characteristics of a strange particle that makes it different
It has a strange quark
Which is not possible
Second lepton is not conserved
State the interaction responsible
Weak
Why must the particle be neutral
Pion. P
-1. +1
Is x a meson lepton or baryon
Baryon X. = p + negative pion C 0. +1. -1 L 0. 0. 0 B+1 +1. 0
Which particle is most stable
Proton
Underline the particles
Positron
Neutron
Neutrino
Positive pion
Underline the particle
Electron
Proton
Negative muon
Complete the equation
For it negative
E-
Anti electron nutrino
Vu
Complete the Feynman diagram
Ve. N. P.
State the difference between leptons and hadrons
Leptons are fundamental
Hadrons are not
Give a non strange hadron and a lepton
Hardon proton
Lepton Electron
The 2 hadron groups and the differences between them
Baryon have 3 quarks
Mesons have anti and regular quark
Show how conservation laws are conserved
P + e- = n + ve
L0+1. 0+1
C+1-1 00
B1 0. 1. 0
What properties define a hadron
It experiences the strong force
What is a baryon quark structure
3 quarks
A mesons quake structure
Quark and anti quark
Anti particle and particle differences
Similar mass
Different charge
Complete the table for anti proton
1.6x10-19
-1
Anti u anti u anti d
How does this decay
Weak
What properties are conserved
Charge and baryon
3 combinations quark can form
Anti up up
Up up up
Anti up anti up anti up
Give the quark combinations for pion and anti proton
Pion up anti down
P anti d anti u anti u
What particle will it decay into
Proton
Complete the Feynman diagram
N. Ve
P
What is the exchange particle for electromagnetic
Photon
Difference between weak and elctro exchange particle
Photons have infinite range and no charge
What is an anti particle
When all a particle properties are inverted but mass
Write down the anti particles
Pion
K with line
Y
How does the elctronmagentic force work
The electromagnetic force uses photons to transfer energy
What particle must collide with a proton for anhilation
Anti proton
How many quarks does E have
3
Which interaction will it decay through
Weak
What will it decay into
Proton
