1 / 63

Kaon and CP: classification

MIXING or INDIRECT. DIRECT. CP violation in the decay amplitute. CP eigenstates ≠ mass eigenstates. INTERFERENCE. CP violation from interference of “DIRECT and MIXING”. DIRECT CP firmly established after more than 30 years Re( e ’/ e ) = (16.7 ± 2.3)x10 -4. Kaon and CP: classification.

deacon-rosario
Download Presentation

Kaon and CP: classification

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. MIXING or INDIRECT DIRECT CP violation in the decay amplitute CP eigenstates ≠ mass eigenstates INTERFERENCE CP violation from interference of “DIRECT and MIXING” DIRECT CP firmly established after more than 30 years Re(e’/e) = (16.7±2.3)x10-4 Kaon and CP: classification eK Re(e’/e)

  2. CKM Model is our Favored Model for CPV

  3. 5. Discussions and ConclusionsCPV at BESMixing and CP Violation in D0-D0 BES also can produce D0 and D0 from y(3770) decays, can also study D0-D0 mixing. K-K, B-B and Bs-Bs mixing observed, in principle Should have D-D mixing. Short distance contribution small: x = Dm/G ~ y=DG/2G ~ 6x10^(-7) (Golowich and Petrov, PLB625,53(2005)

  4. Long distance dominated.(Petrov, hep-ph/0311371)Babu, He, Li and Pakvasa, PLB202, 540(1988)fourth generation can have large contribution to x.

  5. If the ratio of doubly-Cabibbo suppressed decay to the normal decay R_D is measured, one can get information about x’ and y’.If produces D0 and D0 from y(3770), one of them can be used to tag the flavor.

  6. CP Violation in J/y -> LL CP Violating observable in J/y -> LL (He, Ma &McKellar, PRD47, 1744(1993), PRD49, 4548(1994).)

  7. With 5.8x10^7 J/y can already improve the current bound on dL

  8. Back ups

  9. CP violation in hyperon non-leptonic pion decaysPRL93, 262001(2005)[hep-ex/0412038](Theoretical studies: Donohuge, He and Pakvasa, Tandean and Valencia)

  10. CP violation from Cosmology Our universe has more matter than anti-matter. Why such an asymmetric universe?

More Related