Elementary Particle Physics:

(1)

Electron-proton elastic scattering

Elementary Particle Physics:

theory and experiments

Prof. dr hab. Elżbieta Richter-Wąs

Follow the course/slides from M. A. Thomson lectures at Cambridge University

(2)

Electron-Proton Scattering

2

(3)

Crossing Symmetry

3

(4)

4

(5)

Electron-Proton Scattering

5

(6)

6

(7)

7

(8)

Probing the structure of the proton

8

(9)

Rutherford Scattering Revisited

9

(10)

10

(11)

11

(12)

12

(13)

The Mott Scattering Cross Section

13

(14)

Form Factors

14

(15)

15

(16)

Point-like Electron-Proton Elastic Scattering

16

(17)

17

(18)

18

(19)

Interpretation

19

(20)

20

(21)

Elastic scattering from a Finite Size Proton

21

(22)

22

(23)

Measuring G

_E

(q

²

) and G

_M

(q

²

)

23

(24)

24

(25)

Higher Energy Electron-Proton Scattering

25

(26)

High q

²

Results

26

(27)

Summary: Elastic Scattering

27

(28)

Deep Inelastic Scattering

(29)

e

^-

p Elastic Scattering at Very High q

²

29

(30)

Kinematics of Inelastic Scattering

30

(31)

31

(32)

Relationships between Kinematic Variables

32

(33)

Inelastic Scattering

33

(34)

Inelastic Cross Section

34

(35)

Elastic → Inelastic Scattering

35

(36)

Deep Inelastic Scattering

36

(37)

37

(38)

Measuring the Structure Functions

38

(39)

Bjorken Scaling and the Calla-Gross Relation

39

(40)

The Quark-Parton Model

40

(41)

41

(42)

42

(43)

43

(44)

44

(45)

45

(46)

46

(47)

47

(48)

Valence and Sea Quarks

48

(49)

49

(50)

Parton Distribution Functions

50

(51)

Scaling Violations

51

(52)

HERA e^±p Collider: 1991 - 2007

52

(53)

Example of a High Q² Event in H1

53

(54)

F₂(x, Q²) Results

54

(55)

Origin of Scaling Violations

55

(56)

Proton-proton collisions at the LHC

56

(57)

Summary

57