1 / 22

Experimental tests of the SM (3): non- collider particle physics

Experimental tests of the SM (3): non- collider particle physics. FK8022, Lecture 7. Core text: Further reading :. C ollider vs non- collider physics (1). There is life beyond the large collaborations . New physics often found at the high energy / high precision frontiers .

aira
Download Presentation

Experimental tests of the SM (3): non- collider particle physics

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. Experimental tests of the SM (3):non-colliderparticlephysics FK8022, Lecture7 Core text: Furtherreading:

  2. Collider vs non-colliderphysics (1) There is lifebeyond the largecollaborations. New physicsoftenfound at the highenergy/high precision frontiers. Colliders and non-colliders offer complementarity .

  3. Collider vis non-colliderphysics (2) Non-collidersalsoperform studies for specific scenarios or (mad  ) speculativeideaswhichareimpossible for colliderstoprobe. Impossibleto cover all in onelecture. Neutrinoless double b-decaycovered by Thomas. Dipole moment measurements/searchesamong the mosthighprofileof non-collider research (thislecture) Give a flavourof the typeofworkwhich is done and howitsdone. Major neutrino expts not listed (see Thomas’ lectures)

  4. Dipole moments

  5. Electric dipole moments violateT-invariance OR OR A non-zero permanent electricdipole moment violates T-invariance! T

  6. Electric dipole moment • Similar argument can be made for Parity. • A permanent EDM violates P and T. • CPalso violated (CPTinvariance) • Standard Mode CPVpredictstinyEDMs • Searches for EDMs test strong CPsectorof the SM • Sensitive tomanyexotics scenarios

  7. SM and BSM contributionstoelectron-EDM Standard Model Supersymmetry Electroweak 4 loops + cancellationneeded. 1 loop sufficient CP-violating phase

  8. A simple genericEDM experiment (1) z y x

  9. A simple generic EDM experiment (2) x’ y’ z’

  10. Experimental sensitivity

  11. Worldwide EDM Community

  12. Limits on particleEDMs

  13. e-EDMpredictions and limits ACME (2013) (D. DeMille)

  14. Neutron EDM searches 7 orders ofmagnitude in precision gained. Eatinginto SUSY/exotic parameter space.

  15. Gyromagneticratio in classicalphysics

  16. Gyromagneticratio in quantum mechanics

  17. Gyromagneticratio in quantum fieldtheory + infinitenumberof diagrams = + =

  18. SomemoreFeynman diagrams… Subsetof the SM processes whichneedto be calculated. Sensitivityto a rangeof TeV-scale BSM scenarios Eg SUSY

  19. Measurementsofg

  20. Measuringthe muongyromagneticratio E821 Experiment (Brookhaven)

  21. Measurementsofmuong-2

  22. Theoreticaluncertainties Hadronic EW QED

More Related