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Design Study “EDM”. NuPECC Meeting Edinburgh. October 10, 2014 | Hans Ströher (Forschungszentrum Jülich). Novel precision storage rings for Electric Dipole Moment searches. CP Violation by EDMs. Electric Dipole Moments violate P- and T- invariance. Spin. EDM. +. +. T. -. -.

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Design study edm

Design Study “EDM”

NuPECC Meeting Edinburgh

  • October 10, 2014 | Hans Ströher (Forschungszentrum Jülich)


Design study edm


Design study edm

Electric Dipole Moments violate P- and T-invariance

  • Spin

  • EDM

+

+

  • T

-

-

  • Original illustration by: physicsworld.com

Via CPT theorem, T-violation correspondstoCP-violation


Design study edm

The matter-antimatter asymmetryoftheuniverse:

Whatweshouldsee: Whatweactuallysee:

equalamountofpredominantly matter

matter and antimatter almostno antimatter

  • Ratio

  • 1010 :1

  • Matter

  • Anti-

  • Matter

This isoneofthebigunsolvedproblems in physics !


Design study edm

Multiple experimental inputisrequired …

… todisentanglethe fundamental source(s) of EDMs


Design study edm

Particlespinalignmentalongmomentum (frozenspin)

Radial E-field: torque on spin – rotation out of ring plane


Design study edm

Left: a polarizedchargedparticle (beam) in a storage ring

  • Spin

  • Momentum

  • Proton:

  • „all-electric (E) ring“

  • magic momentum

  • Proton, Deuteron, 3He:

  • „all-in-one (E-B) ring“

  • variable momenta

Right: fixingthe horizontal spinalongthemomentumdirection


Design study edm

EDM searchesaremust-doexperiments

The EDM Storage Ring will be a European flagshipproject!

  • Technology

  • New storage ring design

  • Beyondstate-of-the-art

  • equipment

  • Physics

  • Search fornewphysics

  • Matter/antimatter puzzle

  • Complementaryto LHC

  • Society

  • Capacitydevelopment (training, education)

  • International scientificcooperation

  • Cooperationwithhigh-techindustry


Design study edm

WP6: Ring Layout

WP3:

Electrostatic

Deflectors

WP4:

Beam

Instrumentation

WP5:

Beam

Polarimetry

WP2: Dissemination ofresults

WP1: Consortium Management


Design study edm

WP6: Ring Layout

Concept: useofclockwiseandcounter-clockwisebeams

(falseeffectssystematicerrors)

Proton: „all-electric ring“  onevacuumchamber

Proton, deuteron (3He): „E-B ring“  separate beams


Design study edm

  • 42 months, 2.8 M€ (personnel only)

  • Deliverable: CDR for storage ring