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Design Study “EDM”

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”

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  1. Design Study “EDM” NuPECC Meeting Edinburgh • October 10, 2014 | Hans Ströher (Forschungszentrum Jülich)

  2. Novel precision storage rings • for Electric Dipole Moment searches

  3. CP Violation by EDMs Electric Dipole Moments violate P- and T-invariance • Spin • EDM + + • T - - • Original illustration by: physicsworld.com Via CPT theorem, T-violation correspondstoCP-violation

  4. Science Case The matter-antimatter asymmetryoftheuniverse: Whatweshouldsee: Whatweactuallysee: equalamountofpredominantly matter matter and antimatter almostno antimatter • Ratio • 1010 :1 • Matter • Anti- • Matter This isoneofthebigunsolvedproblems in physics !

  5. Source(s) of EDMs Multiple experimental inputisrequired … … todisentanglethe fundamental source(s) of EDMs

  6. Principle of EDM Search Particlespinalignmentalongmomentum (frozenspin) Radial E-field: torque on spin – rotation out of ring plane

  7. Frozen Spin Technique 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

  8. Project impact 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

  9. Design Study WP6: Ring Layout WP3: Electrostatic Deflectors WP4: Beam Instrumentation WP5: Beam Polarimetry WP2: Dissemination ofresults WP1: Consortium Management

  10. Design Study WP6: Ring Layout Concept: useofclockwiseandcounter-clockwisebeams (falseeffectssystematicerrors) Proton: „all-electric ring“  onevacuumchamber Proton, deuteron (3He): „E-B ring“  separate beams

  11. Participants • 42 months, 2.8 M€ (personnel only) • Deliverable: CDR for storage ring

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