1 / 27

Private view of the present status of GUT II

Private view of the present status of GUT II. GUT2012 @YITP March. 15-17 2012 Takeshi Fukuyama (Ritsumeikan University) In collaboration with N.Okada, S.Meljanac, A.Ilakovac, T.Kikuchi et.al. This talk is maily based on the following works but considered from the different view points.

wynter-conrad
Download Presentation

Private view of the present status of GUT II

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. Private view of the present status of GUTII GUT2012 @YITP March. 15-17 2012 Takeshi Fukuyama (Ritsumeikan University) In collaboration with N.Okada, S.Meljanac, A.Ilakovac, T.Kikuchi et.al.

  2. This talk is maily based on the following works but considered from the different view points. • arXiv:1104.1736 [hep-ph] • Phys.Rev.D78:015005,2008. e-Print: arXiv:0808.3598 [hep-ph] • Phys.Rev.D78:115011,2008. e-Print: arXiv:0808.3598 [hep-ph] • JCAP 0809:024,2008. e-Print: arXiv:0806.4626 [hep-ph] • Phys.Rev.D78:015005,2008. e-Print: arXiv:0803.1758 [hep-ph] • AIP Conf.Proc.1015:3-21,2008. e-Print: arXiv:0806.1987 [hep-ph]

  3. What is GUT? • Unification of coupling constant Pati-Salam ? • Unification of matter Pati-Salam , SU(5) ? SO(10) E_6？

  4. Why is minimal SO(10) GUT comprehensive ?

  5. Babu-Mohapatra, Mohapatra, Dutta, Mimura, Bajic-Senjanovic et.al., Bertolini-Schwetz-Malinsky, Babu, Aulakh, ….. • Pati-Salam (1974), Georgi-Glashow (1974), Fritzsch-Minkowski (1975) • Mohapatra-Sakita、Nath-Syed, He-Meljanac • Raby, Babu-Barr, Albright,….

  6. Many vacua (SM singlets) • (1234) • (5678+5690+7890) • (1256+1278+1290+3456+3478+3490) • (13579) D-flatness • (24680)

  7. Bertolini-Schwetz-Malinsky

  8. Many solutions to the problem • Add 120-plet Higgs • Add 45-plet Higgs, • Add type I, II…. Seesaw • Flipped SU(5), SO(10),… • GUT->MSSM by one step

  9. Nelson-Seiberg’s No-Go th.(See Ratz et.al. 2011) Under the conditions • Superpotential is generic, and • low energy theory can be described by a supersymmetric Wess-Zumino model, • R symmetry is necessary for SUSY breaking, and • spontaneous R symmetry breaking is sufficient for SUSY breaking.

  10. SUSY breaking mechanism Gravity mediation Gauge mediation 4D Anomaly mediation Gaugino mediation Extra D Hybrid mediation etc. Then why do we need extra dimensions ?

  11. U(1)_Rtransformation

  12. Metastable vacuum (a) (c) (b)

  13. Why No-Go

  14. No-Go leads us to • Break SU(5) and/or higher ranked SO(10), E_6 gauge stmmetries by any method other than Higgs mechanism Break Pati-Salam and lower ranked symmetry by Higgs mechanism

  15. Our Setup SO(10)invPSinv vevof (10,1,3) Standard ｙ＝０　　　　　　　　　　　ｙ＝pi/2 SO(10) brane PS brane

  16. Gauge coupling unification

  17. R-symmetric superpotentialHybrid Inflation model • Shifted and Smooth hybrid Inflation model 　　　　　　　　（Lazarides, InflationayCosmology, Jeannerot-Khalil-Lazarides-Shafi)

  18. Cosmological parameters • Power spectrum of the primordial curvature perturbation, from WMAP

  19. (b) The number of e-folds versus v_PS. (a) The spectral index as a function of T_rh. The dashed lines correspond to the WMAP 5-year data

  20. (c) The tensor to scalar ratio versus v_PS.

  21. (Jeannerot et.al.)

  22. Thank you

More Related