1 / 13

Yeo Woong Yoon

CKM. E XTRACTION O F V IA I SOSPIN A NALYSIS O F D ECAYS. Yeo Woong Yoon Collaboration with C. S. Kim and Sechul Oh. H ISTORY OF E XTRACTING. decays. Weak phase.

nona
Download Presentation

Yeo Woong Yoon

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. CKM EXTRACTION OF VIA ISOSPIN ANALYSIS OF DECAYS Yeo Woong Yoon Collaboration with C. S. Kim and Sechul Oh

  2. HISTORY OF EXTRACTING • decays Weak phase Gronau, London, Wyler (1991) u Color suppressed But the triangles are quite squashed ! Color allowed

  3. HISTORY OF EXTRACTING • GLWFrom and their CP conjugates The triangles are quite squashed • ADSImprovement of GLW method by seeing and . Enhancement of since • GGSZDalitz analysis from Gronau, Wyler (1991), Gronau, London (1991) Atwood, Dunietz, Soni (1997) Giri, Grossman, Soffer, Zupan (2003) Combined all methods : UTfit, Winter 2007

  4. HISTORY OF EXTRACTING • and SU(3) Flavour Symmetry Gronau, Rosner, London (1994); Buras Fleischer (1995); Deshpande, He (1995) Gronau, Hernandez, London, Rosner (1995); Fleischer (1996); NeubertRosner (1998); Buras, Fleischer (1999); Gronau, Rosner (2002)

  5. HISTORY OF EXTRACTING • Fleischer – Mannel Bound Fleischer, Mannel (1998) = 72° = 0.90 ± 0.05

  6. ISOSPIN ANALYSIS IN DECAYS • Isospin Relation for Decays One can make two quadrangle in complex plane from these two relations RemindGronau, London (1990)

  7. ISOSPIN ANALYSIS IN DECAYS Determination of a quadrangle: 4 lengths + 1 angle • All lengths can be obtained by 4 Br’s and 4 Acp’s. • gives one constrains on angles • from gives one another constrains on angles  Two quadrangles are determined Mixing induced CPV is a function of θ

  8. ISOSPIN ANALYSIS IN DECAYS • Mixing induced CPV Middle value Error

  9. DISCRETE AMBIGUITY A B 4 ambiguity C D A ambiguity for two quadrangle A1 A2 A3 A4

  10. DISCRETE AMBIGUITY A1 A2 B1 B2 A3 A4 B3 B4 C1 C2 D1 D2 C3 C4 D3 D4 Totally Sixteen-fold Discrete Ambiguity occurs

  11. EXTRACTION OF A1: A4: B2 and C2: B3: Dashed line : (unreasonable)

  12. EXTRACTION OF Fleischer and Mannel Bound Sharply consistent to the graph Dashed line : (unreasonable)

  13. CONCLUSION • We adopt①Isospin relation in decays. ②Quark Diagram Approach in and it’s charge conjugate modes. • All nine measurements of is requiredto extract in this framework. Mixing inducedCP asymmetry plays a crucial role. • We extract from only decay system without using SU(3) flavor sym. as follows

More Related