1 / 20

Supersymmetry Breaking Vacua in Geometrically Realized Gauge Theories

Supersymmetry Breaking Vacua in Geometrically Realized Gauge Theories. Yutaka Ookouchi (Caltech). Based on works in collaboration with Hirosi Ooguri. Recently, it was found that simple field theories such massive SQCD have meta-stable vacua with broken supersymmetry

matthewhoule
Télécharger la présentation

Supersymmetry Breaking Vacua in Geometrically Realized Gauge Theories

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. Supersymmetry Breaking Vacua in Geometrically Realized Gauge Theories Yutaka Ookouchi (Caltech) Based on works in collaboration withHirosi Ooguri

  2. Recently, it was found that simple field theories such massive SQCD have meta-stable vacua with broken supersymmetry [Intriligator, Seiberg and Shih] Idea and technique • Long-live meta-stable vacua are phenomenologically viable • This makes it easier to construct models that break supersymmetry • Free magnetic dual description (Seiberg dual) is used to study IR physics

  3. Quick Review of Seiberg duality 4D N=1 SUSY SU(Nc) with Nf quarks chiral multiplet Seiberg dual SU(Nf -Nc) with Nf dual quarks chiral multiplet and singlet Conformal Window Confining Free Magnetic Nc+1 3Nc/2 3Nc

  4. Kutasov Dual SU(Nc) with adjoint field X and Nf quarks chiral multiplet [Kutasov, Kutasov-Shwimmer-Seiberg] Dual description SU(kNf-Nc) with Y and Nf dual quarks We use this dual in free magnetic range

  5. Review of ISS meta-stable vacua Why free magnetic range? Kahler potential for the IR fields is smooth and can be taken to be canonical Add small mass term for all quarks

  6. F-term condition for M can not be satisfied Rank Nf-Nc Rank Nf Note that in free magnetic range SUSY broken at tree level Veff decay process Broken vacua SUSY vacua q M

  7. Motivation • How generic are they? • Is it possible to apply to another Seiberg dualities? • Can we embed their construction in String theory? • Geometric interpretation of meta-stable vacua • Can we get a new insight into String Landscape?

  8. N=1 Supersymmetric Quiver Gauge Theory [Cachazo, Fiol, Intriligator, Katz and Vafa] Type IIB string theory D5 brane probes wrapping cycles of Calabi-Yau three folds ALE w U(N1) U(Nk)

  9. A2 Quiver Gauge Theory U(N1) U(N2) Assume U(N1) is much strong

  10. Dual description Take magnetic dual description for first gauge group [ Kutasov, Schwimmer and Seiberg ] magnetic electric U(N2) U(2N2-N1)

  11. Comments on dual description When N1 < N2: N1=2N2-N1>N2 F-term condition can be solved vev of fields give mass-term and enforce Higgsing Type IIB string language Known as Duality cascade Weyl reflection symmetry of A2 Dynkin diagram What happenswhen N1 > N2 ?

  12. Especially focus on • Both U(N1) and U(N2) in electric description are asymptotically free • Both U(2N2-N1) and U(N2) in dual description are IR free • Suitable to study vacuum structure U(N1)×U(N2) Kutasov dual Duality Cascade U(2N2-N1)×U(N2) × Higgsing, integrate out massive Does not happen in this range Instead, DSB occur U(N2- N1)×U(N2)

  13. Because of Rank condition, F-term equation can never be satisfied N1<N2 Minimum of D and F-term potential flat direction All the non-compact flat directions are lifted by the one-loop Coleman-Weinberg potential

  14. All the moduli are locally stabilized • There are [N2-N1/2] meta-stable vacua • They are distinguished by unbroken gauge symmetry U(r1)×U(r2)×U(N1-N2) R-symmetry • Tree level superpotential breaks U(1)R to Z4 • ABJ anomaly breaks Z4 to Z2 • R-symmetry is not restored on SUSY breaking vacua • Gaugino can get masses from radiative corrections

  15. Supersymmetric vacua SUSY vacua can also be found in the dual description • Longevity of meta-stable vacua • Higher order corrections to Kahler are negligible

  16. The low energy structure of this model is rich UV U(N1)×U(N2)asymptotically free U(2N2-N1)×U(N2)IR free Supersymmetry breaking U(r1)×U(r2)×U(N1-N2) Low energy excitations are QCD glueballs IR

  17. Generalization Veff SU(N1)×SU(N2) Degeneracy of meta-stable vacua are resolved by one-loop correction Y ADE Quiver Gauge Theories [Cachazo,Fiol, Intrilgator, Katz and Vafa] Under investigation Ak Dk E6,7,8

  18. D6 D-brane configuration for ISS meta-stable vacua We reproduce various features of meta-stable vacua in ISS NS’ NS’ (4,5) NS NS D6 6 (7,8) Nc Nf Nf-Nc < Nf electric massless magnetic NS’ NS’ D6 D6 NS Nf-Nc Nf Nc Nc NS massive

  19. decay process From above NS D6 NS’ Nf-Nc Nf This configuration seems to describe features of SUSY breaking vacua NS’ Nf-Nc • Vev of quarks and meson • Project out of tachyon (stability of ISS) D6 project out tachyon on intersecting D4 • Energy of SUSY breaking vacua • Decay process to SUSY vacua • Global symmetries including U(1)R Rotation symmetry in (78) Nc

  20. Summary We identified brane configurations that correspond to the meta-stable SUSY breaking vacua in massive SQCD We found models that have landscape of inequivalent meta-stable vacua where supersymmetry is dynamically broken and all moduli are fixed It would be interesting to study properties of the meta-stable vacua from the geometric point of view of string theory

More Related