Download presentation

Presentation is loading. Please wait.

Published byHester Lee Modified over 2 years ago

1
Moduli stabilization and flavor structure in 5D SUGRA with multi moduli Yutaka Sakamura (RIKEN) with Hiroyuki Abe (Yukawa Inst.) Aug. 1, 2008@YITP arXiv:0807.3725

2
Problems in Standard Model gauge hierarchy problem Yukawa hierarchy Introduction SUSY? … flavor sym., extra dim., … We consider effective theories of SUSY extra -dimensional models, focusing the flavor structure.

3
0 RR y f (0) i Yukawa hierarchy from extra dimension e.g.) zero-mode: 5D mass (Arkani-Hamed & Schmaltz, 2000 ;…) (4D Yukawa) = (overlap integral)

4
In effective theories of 5D SUGRA, : Radion (chiral) multiplet (Luty & Sundrum, 2000) Purpose Study the flavor structure of the effective theory for more general 5D SUGRA. In general, the radius is given by chiral multiplets

5
5D (off-shell) SUGRA on S /Z Field content Weyl multiplet: Vector multiplet: (One of them is the graviphoton multiplet.) Hypermultiplet: 1 2 compensator physical (Kugo & Ohashi, 2000-2002) where Norm function

6
5D Lagrangian bulk part (bulk mass) (gauge coupling) =

7
T = zero-mode of Single modulus case: I I T is the radion multiplet. Moduli

8
5D SUGRA with multi moduli Field content Vector multiplet: Hypermultiplet: Orbifold parity Yukawa hierarchy SUSY matter gauging

9
4D effective theory Yukawa couplings and Soft SUSY parameters (cf. H.Abe & Y.S., 2007) (physical Yukawa coupling)

10
where If, the soft scalar masses are

11
Single modulus case tachyonic soft masses from F X

12
Multi moduli case If the second term of dominates, No SUSY flavor problem

13
e.g.) All moduli are stabilized. Vacuum

14
In this case, When the second term dominates. non-tachyonic flavor universal Soft masses are

15
RR 0y Single modulus case: sequestered Multi moduli case: not sequestered When

16
Integration out for 5D gauge coupling

17
RR y Integration out for When,

18
RR y Integration out for

20
Physical vector multiplets Vecter multiplets (I=1,2,…,n) : parity-odd : parity-even Superconformal gauge-fixing … (# of physical vector multiplets) = n-1 Single modulus case: no KK vector multiplets

21
Summary 5D SUGRA with multi moduli Radius: Additional contribution to the Kahler potential exist, and it can save Tachyonic sfermion masses at tree level SUSY flavor problem

Similar presentations

OK

6 August, 2007 at SI2007. Phys.Rev.D75:025019,2007, ArXiv:0707.2671 [hep-th]. Based on articles : In collaboration with Hiroyuki Abe (YITP), Tatsuo Kobayashi.

6 August, 2007 at SI2007. Phys.Rev.D75:025019,2007, ArXiv:0707.2671 [hep-th]. Based on articles : In collaboration with Hiroyuki Abe (YITP), Tatsuo Kobayashi.

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google