Die Präsentation wird geladen. Bitte warten

Die Präsentation wird geladen. Bitte warten

III II I Relations between masses and mixing angles.

Ähnliche Präsentationen


Präsentation zum Thema: "III II I Relations between masses and mixing angles."—  Präsentation transkript:

1

2

3

4

5 III II I

6 Relations between masses and mixing angles

7

8

9 III II I

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24 Ewigkeit ist lang, speziell gegen dem Ende zu.W.A.Ewigkeit ist lang, speziell gegen dem Ende zu.W.A.

25

26

27

28 What type of mass term? How big or small are masses? How big are the mixing angles? Relations among angles and masses?

29 Neutrino Masses: Mass terms for charged leptons and neutrinos are not parallel  Neutrino Mixing

30

31

32

33 Neutrino mixing V=UxP

34

35

36 Observation:

37

38

39

40 m(1) = … eV m(2) = … eV m(3) = … eV

41

42 Neutrino masses less hierarchical than the masses of the charged leptons

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57 Neutrinoless Double Beta Decay

58

59

60 Conclude: Fermion masses remain a mystery. Neutrino masses might be Dirac masses or Majorana masses. Mixing angles for quarks are fixed by ratios of quark masses. Very good agreement with experiment.

61

62 This works also well for leptons. One finds, using the observed mass differences: m(1)/m(2)=0.42, m(2)/m(3)=0.19. m(1): eV m(2): eV m(3): eV

63 Atmospheric angle about 40 degrees Neutrinoless double beta decay: difficult

64


Herunterladen ppt "III II I Relations between masses and mixing angles."

Ähnliche Präsentationen


Google-Anzeigen