1. FNAL Theory Beyond the Standard Model Jose Santiago DOE Annual Program Review 2006 Theory Breakout Session May 17, 2006

2. Outline Why BSM physics? Why BSM physics? BSM physics in the theory group BSM physics in the theory group Overview of work from the group Overview of work from the group Supersymmetry Supersymmetry Extra Dimensions and String Theory Extra Dimensions and String Theory Cosmology Cosmology Extended Higgs and Gauge Sectors Extended Higgs and Gauge Sectors Little Higgs Little Higgs

3. Why BSM Physics? SM describes SM describes experimental data experimental data to extreme precision to extreme precision It leaves important It leaves important questions unanswered questions unanswered

4. Why BSM Physics? Some open questions Some open questions Electroweak Symmetry Breaking Electroweak Symmetry Breaking Hierarchies in Nature Hierarchies in Nature New particles? New particles? Unification and Quantum gravity Unification and Quantum gravity Good BSM theories: Good BSM theories: Answer some of these questions Answer some of these questions Are compatible with current experiments Are compatible with current experiments Have phenomenological implications at present/future colliders Have phenomenological implications at present/future colliders

5. BSM in the Theory Group Staff members (6/14) Staff members (6/14) B. Bardeen, M. Carena, B. Dobrescu, C. Hill, J. Lykken, C. Quigg B. Bardeen, M. Carena, B. Dobrescu, C. Hill, J. Lykken, C. Quigg Postdoctoral associates (7/12) Postdoctoral associates (7/12) M.C. Chen, A. Freitas, J. Hubisz, E. Lunghi, O. Mena, J. Santiago, P. Skands M.C. Chen, A. Freitas, J. Hubisz, E. Lunghi, O. Mena, J. Santiago, P. Skands Users and visitors Users and visitors C. Albright, W.Y. Keung, S. Martin, T. Tait C. Albright, W.Y. Keung, S. Martin, T. Tait Publications Publications Research Articles: 37 Research Articles: 37 Conference proceedings, lectures,... 30+ Conference proceedings, lectures,... 30+

6. BSM in the Theory Group Other activities: Other activities: New Phenomena Group (weekly informal discussion) New Phenomena Group (weekly informal discussion) Conference organization Conference organization Monte Carlo Tools for BSM Monte Carlo Tools for BSM TeV4LHC TeV4LHC Latin-American Student program Latin-American Student program Contact with experimenters and particle astrophysics theory group Contact with experimenters and particle astrophysics theory group

7. SUSY and Dark Matter at Colliders LHC will probably find evidence of DM particles through missing momentum/energy analyses LHC will probably find evidence of DM particles through missing momentum/energy analyses ILC will determine its properties in great detail, making Ώ(DM) computable ILC will determine its properties in great detail, making Ώ(DM) computable M. Carena, A. Finch, A. Freitas, C. Milstene, H. Nowak, A. Sopczak, PRD72 (‘05)

8. MSSM Higgs at Tevatron and LHC Couplings to bb and     are affected by radiative corrections (encoded in   b ) Couplings to bb and     are affected by radiative corrections (encoded in   b ) M. Carena, S. Heinemeyer, C. Wagner, G. Weiglein, Eur. Phys. J. C45 (‘06)  Strong parameter dependence on the bb channel that is absent in the  channel

9. Constraints from B physics are important for the analyses: (see T. Becher’s talk)

10. Physics of (two) UED UED: All fields living in the bulk UED: All fields living in the bulk KK Parity: only loop effects or pair produced new states KK Parity: only loop effects or pair produced new states Natural Dark Matter candidate Natural Dark Matter candidate Mild bounds: M C ~400 GeV Mild bounds: M C ~400 GeV Two UED: Two UED: Decays mainly to tt Decays mainly to tt G. Burdman, B. Dobrescu, E. Ponton, JHEP 06 [hep-ph/0506334] and hep-ph/0601186  3 generations  Suppressed Proton Decay 

11. Tevatron LHC

12. M-theory compactifications String theory: D3 branes AdS 5 xS 5 RS String theory: D3 branes AdS 5 xS 5 RS M theory: M5 branes AdS 7 xS 4 M theory: M5 branes AdS 7 xS 4 AdS7 AdS5xT2 How does it compare to RS? AdS7 AdS5xT2 How does it compare to RS? Spectrum: Spectrum: RS-like: mn=1, 1.64, 2.26, 2.88 (RS 1, 1.83, 2.66,...) RS-like: mn=1, 1.64, 2.26, 2.88 (RS 1, 1.83, 2.66,...) T2 KK modes: mn=|n|/Ř T2 KK modes: mn=|n|/Ř Winding modes: O(TeV) independently of R!!! Winding modes: O(TeV) independently of R!!! R. Bao, J. Lykken, hep-ph/0509137

13. Revamped Braneworld Gravity Unified description of braneworld gravity models: Unified description of braneworld gravity models: (A)dS 4 /AdS 5 with arbitrary localized curvature terms (A)dS 4 /AdS 5 with arbitrary localized curvature terms Allows to study phenomenology of Allows to study phenomenology of RS: Gauge hierarchy and collider physics RS: Gauge hierarchy and collider physics DGP: Selfacceleration of the Universe and dark energy DGP: Selfacceleration of the Universe and dark energy New Models: Ghostless DGP? New Models: Ghostless DGP? R. Bao, M. Carena, J. Lykken, M. Park, J.S., PRD72 (‘05) and PRD73 (‘06)

14. Oscillating cosmologies Why now? Not special if dark energy EoS oscilates Why now? Not special if dark energy EoS oscilates Can produce inflation Can produce inflation Passes cosmological tests Passes cosmological tests Tension with structure formation (b < 0.4) Tension with structure formation (b < 0.4) ~5% of the time Universe looks like ours today ~5% of the time Universe looks like ours today G. Barenboim, C. Quigg, O. Mena, PRD71 (’05) and JCAP0604 (’06) G. Barenboim, J. Lykken PLB633 (’06)

15. SuperNovae CMB

16. Global fit with triplet Higgs M.C. Chen, S. Dawson, T. Krupovnickas, hep-ph/0604102 SM:  Z prefers heavy Higgs  Z increases with m t TM:  Z prefers light Higgs  Z decreases with m t mass of the lightest neutral Higgs 100 ~ 200 GeV

17. Other works Flavor of a Little Higgs model with T-parity, J. Hubisz, S.J. Lee, G. Paz, hep-ph/0512169 see T. Becher’s talk Flavor of a Little Higgs model with T-parity, J. Hubisz, S.J. Lee, G. Paz, hep-ph/0512169 see T. Becher’s talk Anomalies, Chern-Simons terms and chiral delocalization in extra dimensions, C. Hill, PRD73 (06) Anomalies, Chern-Simons terms and chiral delocalization in extra dimensions, C. Hill, PRD73 (06) Effective description of brane terms in extra dimensions, F. del Aguila, M. Perez-Victoria, J. S. hep-ph/0601222 Effective description of brane terms in extra dimensions, F. del Aguila, M. Perez-Victoria, J. S. hep-ph/0601222 Constraining inverse curvature gravity with supernovae, O. Mena, J. S., J. Weller, PRL96 (06) Constraining inverse curvature gravity with supernovae, O. Mena, J. S., J. Weller, PRL96 (06) Anomaly-free sets of fermions, P. Batra, B. Dobrescu, hep- ph/0510181 Anomaly-free sets of fermions, P. Batra, B. Dobrescu, hep- ph/0510181 Analysis of enhanced tan corrections in MFV GUT scenarios, E. Lunghi, W. Porod, O. Vives Analysis of enhanced tan corrections in MFV GUT scenarios, E. Lunghi, W. Porod, O. Vives FCNC at NLO in Little Higgs Models, B. Bardeen, A. Buras, in progress FCNC at NLO in Little Higgs Models, B. Bardeen, A. Buras, in progress

18. Conclusions Physics BSM is crucial to understand the world around us Physics BSM is crucial to understand the world around us It is a rich and complex field It is a rich and complex field Experiment will help disentangle which is the model(s) of new physics Experiment will help disentangle which is the model(s) of new physics A big deal of work and ingenuity will be necessary A big deal of work and ingenuity will be necessary Fermilab is the perfect place for it! Fermilab is the perfect place for it!