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Experimental tests of the SM (2): CP v iolation and the CKM matrix

Experimental tests of the SM (2): CP v iolation and the CKM matrix. FK8022, Lecture 6 . Core text : Status of the CKM Matrix and CP Violation , A . Stocchi. Lecture outline. Standard Model flavour parameters C, P, CP reminders CP violation in the SM

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Experimental tests of the SM (2): CP v iolation and the CKM matrix

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  1. Experimental tests ofthe SM (2):CPviolation and the CKM matrix FK8022, Lecture 6 Core text: Status of the CKM Matrix and CP Violation, A. Stocchi

  2. Lectureoutline • Standard Modelflavour parameters • C, P, CP reminders • CPviolation in the SM • CPviolation and the CKM matrix • Unitaritytriangle

  3. Free parameters of the Standard Model Masses Couplings Flavour and CP violation

  4. Parameters of the SM Flavour and CP violation Thislecture: Flavourphysics, CP-violation and CKM matrix measurements from colliders. Flavourphysics: weakchargedcurrent interactions involvinghadrondecays.

  5. Veryverybriefreminder (1): parity Parity v LH RH

  6. VeryverybriefReminder (2): charge conjugation(C) and CP

  7. Mechanism for CPviolation in SM 1 X f

  8. CPviolation in the SM

  9. Different waystoviolateCP

  10. Direct CP violation 1 2

  11. DirectCP-violation in B-sector

  12. CP-violation in mixing

  13. CPviolationbetweenmixing+decay

  14. Observations ofCPviolation

  15. CKM matrix

  16. Unitarityconstraint

  17. Freedoms inthe quarkfields

  18. Check withCabibbotheory • 

  19. CKM matrix - 1

  20. CKM matrix-2

  21. RevisitingCPviolation

  22. CP violationtimeline LHC-B: CPV in Bs decays > 2010 B-hadronexperiments Kaon Experiments Series ofdedicated small and not so-small experiments on K’s and B’stostudy CPV.

  23. Determination of non-CPV CKM parameters

  24. Determination of non-CPV CKM parameters

  25. Unitaritytriangle CPviolation

  26. In an ideal world CPviolation

  27. In the real world – experiments measure contours

  28. Why the largeerrors ? • Wewantto test the EW sectorof the SM and extract CKM parameters. • Butweobserve the electroweak+strong stuff. • The strong stuff is poorlyunderstood. • Usemodelstoseparate the contributions. • Largeuncertainties. • Largewidths for some contours.

  29. State of the art unitaritytriangle

  30. Whyflavour is important for searches Excluded Allowed SM

  31. Summary • CP violation in the Standard Model is an interferenceeffect • CKM matrix governs all quarkmixing + CP violationwithfour parameters • Many, manymeasurementsofhadrondecay. • The CKM matrix consistentlydescribesthem all.

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