1. Muons

2. I:Muons in General m

3. !

4. e+e+ m C.D. Anderson, 1936

5. e: 1q e m: 1q e t: 1q e 1q e = 1.602 × 10 – 19 C

6. e: 512keV/c 2 m: 106MeV/c 2 t: 1.777GeV/c 2 1eV = 1.602 × 10 – 19 J

7. Nuclear Reactions 1Me V 1Ge V 1TeV 1Pe V LHC Muo n Proton/ Neutro n Top Quark E=m 0 c 2

8. AUGE R Super- Kamiokande

9. neutrino electron, photon proton,neutron... tau muon High (but not too high!) Energies a few meters matte r

10. nucl- ex/0601019  100m /s

11. CR Primary Air Shower p/nucleu s air pion/kao n lepton/neutrin o gamm a Hadronic Interaction

12. m-m- nmnm muonic number (approx.!) Conservation Law e-e- Charge lepton number nene ≃ 100% S: Energy Decay...

13. p m e

14. gctgct 2.197×10 −6 s 3×10 −8 m/ s E/m 0 c 2 Shower Maximum to Detector Center (vertical): 10km Shower Maximum to Detector Center (horizontal): 100km E=105MeV (g=1): 660m E=400GeV (g=4,000): 2,640km E=100TeV (g=1,000,000): 660,000km log d Earth Diameter: 12,740km Earth-Moon: 300,000km

15. Outside HEP/Astro- Ph

16. Muon Tomography (Alvarez, 1960s) ?

17. hep- ph/0611102 Anomalous Magnetic Moment:

18. p P a m -4 electron s Muon Collider?

19. 0.1n m e 5x10 - 4 nm m FUSION ! H2H2

20. II:Muons in IceCube m

21. Atmospheric Muons 500Hz Muons From Neutrinos ≃ 20/h Coincident Muons 25Hz 10s of meters

22. Neutrino Interaction Muon also: t, hadron decay to m (rare)

23. nmnm m q q' W q ? ! Deep Inelastic Scattering

24. Intermezz o

25. King Haakon VII Plateau 1.5k m 2.5km 4.4km (70 ° ) 17km (85 ° ) 28km (85 ° ) 7.4km (70 ° )

26. hep- ph/0407075 low E: flat high E: steep few TeV

27. top (70 ° ) vertical bottom (85 ° )top (85 ° ) Threshold Energy

28. 70 °

29. Idea l

30. Actua l

31. Y TRUE RECONSTRUCTE D misreconstructed/ not reconstructable media n 1/ 2

32. Ra w

33. 1

34. 2

35. 3

36. Fina l SIGNAL!! !

37. Applications

38. Omg! Neutrinos! Excitement !

39. H. Wissing, DESY Zeuthen Meteorology

40. Cosmic rays Muon s

41. Muon Rate Energy Spectrum AMANDA !

42. Near-Horizontal Muons (below 70 degrees) Detector Calibration RealSimulate d ordinary ice dust layer clear ice

44. en d