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Physic Particles > Particles > Flashcards

Particles Flashcards

1
Q

State the quark composition of a meson

A

Quark and anti quark

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2
Q

K- baryon number

A

0

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3
Q

K- quark composition

A

Anti up and strange

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4
Q

Which interaction is responsible for this decay

A

Weak

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5
Q

State 2 quantities that are conserved and 1 that is not

A

C:baryon
C:charge
N: strangeness

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6
Q

Complete the equation

A

K- ——-> pion + e- + anti electron neutrino

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7
Q

Complete the table

A

Weak W+ W- z0

Electromagnetic photon

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8
Q

Proton quark composition

A

Uud

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9
Q

What is electron capture

A

When an unstable atom becomes more stable by taking an electron from a shell

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10
Q

Feynman diagram electron capture

A

N. Be

P. E-

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11
Q

Fundamental force and its exchange particle

A

Weak interaction

Z0

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12
Q

What role do exchange particles play in an interaction.

A

They can transfer energy and momentum

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13
Q

Identify all examples

A

Hadrons p anti-n pion
Lepton ve e+ u-
Antiparticle anti n e+
Charged p e+ u-

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14
Q

Show this collision obeys

A

K + p = n + pion
B 0. 1. 1. 0
L. 0. 0. 0. 0
C 0. 1. 0. 1

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15
Q

Right down the quark structure

A

K0 anti strange down
Pion plus up anti down
P Urdu

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16
Q

Complete the table

A

Proton +1 1
-1 1
Pion plus +1
I

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17
Q

Give one baryon abs it’s anti particle

A

Proton

Anti proton

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18
Q

State the quark composition of an anti baryon

A

3 anti quarks

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19
Q

What is the same abs what is different about a particle and it anti particle

A

Mass same

Charge different

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20
Q

Name 2 baryons

A

Proton neutron

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21
Q

Quark structure of pion plus

A

u anti d

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22
Q

One characteristics of a strange particle that makes it different

A

It has a strange quark

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23
Q

Which is not possible

A

Second lepton is not conserved

24
Q

State the interaction responsible

A

Weak

25
Q

Why must the particle be neutral

A

Pion. P

-1. +1

26
Q

Is x a meson lepton or baryon

A 
Baryon 
X.  =  p + negative pion
C 0.    +1.    -1
L 0.      0.      0
B+1      +1.      0
27
Q

Which particle is most stable

A

Proton

28
Q

Underline the particles

A

Positron
Neutron
Neutrino
Positive pion

29
Q

Underline the particle

A

Electron
Proton
Negative muon

30
Q

Complete the equation

For it negative

A

E-
Anti electron nutrino
Vu

31
Q

Complete the Feynman diagram

A

Ve. N. P.

32
Q

State the difference between leptons and hadrons

A

Leptons are fundamental

Hadrons are not

33
Q

Give a non strange hadron and a lepton

A

Hardon proton

Lepton Electron

34
Q

The 2 hadron groups and the differences between them

A

Baryon have 3 quarks

Mesons have anti and regular quark

35
Q

Show how conservation laws are conserved

A

P + e- = n + ve
L0+1. 0+1
C+1-1 00
B1 0. 1. 0

36
Q

What properties define a hadron

A

It experiences the strong force

37
Q

What is a baryon quark structure

A

3 quarks

38
Q

A mesons quake structure

A

Quark and anti quark

39
Q

Anti particle and particle differences

A

Similar mass

Different charge

40
Q

Complete the table for anti proton

A

1.6x10-19
-1
Anti u anti u anti d

41
Q

How does this decay

A

Weak

42
Q

What properties are conserved

A

Charge and baryon

43
Q

3 combinations quark can form

A

Anti up up
Up up up
Anti up anti up anti up

44
Q

Give the quark combinations for pion and anti proton

A

Pion up anti down

P anti d anti u anti u

45
Q

What particle will it decay into

A

Proton

46
Q

Complete the Feynman diagram

A

N. Ve

P

47
Q

What is the exchange particle for electromagnetic

A

Photon

48
Q

Difference between weak and elctro exchange particle

A

Photons have infinite range and no charge

49
Q

What is an anti particle

A

When all a particle properties are inverted but mass

50
Q

Write down the anti particles

A

Pion
K with line
Y

51
Q

How does the elctronmagentic force work

A

The electromagnetic force uses photons to transfer energy

52
Q

What particle must collide with a proton for anhilation

A

Anti proton

53
Q

How many quarks does E have

A

3

54
Q

Which interaction will it decay through

A

Weak

55
Q

What will it decay into

A

Proton

Physic Particles (1 decks)

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