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CERN Document Server 2,013 elementer funnet  1 - 10nesteslutt  gå til element: Søket tok 0.25 sekunder. 
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Storage ring proton EDM experiment / Semertzidis, Yannis K. (speaker) (Korea Advanced Inst of Science and Technology (KAIST))
I will give a overview of the present status of the electric dipole moment (EDM) experiments and then I will focus on the proton EDM method to be performed in an all-electric storage ring.  In storage rings one has the chance to probe the EDM of the proton with unprecedented sensitivity of 10^-29 e-cm.  The strength of the method originates from the fact that there are high intensity polarized proton beams available and the fact that the so-called geometric phase systematic error background cancels with clock-wise and counter-clock-wise storage possible in electric rings. The ultimate sensitivity of the method is 10^-30 e-cm [...]
2015 - 3725. EP Seminar External link: Event details In : Storage ring proton EDM experiment
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Challenges for the Electric Field Devices for a CERN Proton EDM Storage Ring / Borburgh, J (CERN) ; Atanasov, M (CERN) ; Goddard, B (CERN) ; Jorat, L (CERN) ; Sgobba, S (CERN)
In the framework of the Physics Beyond Colliders (PBC) study at CERN, the Electric Dipole Moment (EDM) working group is investigating the feasibility of building an approximately 500 m circumference storage ring to precisely measure the permanent electric dipole moment of the proton. Protons are stored in an EDM ring at the so-called `magic' energy of 233 MeV using only electric field elements in order to ensure that spin and momentum vectors precess horizontally at the same rate. [...]
CERN-PBC-CONF-2021-007.- Sept - 4 p. - Published in : 10.1109/DEIV.2018.8537088
In : 28th International Symposium on Discharges and Electrical Insulation in Vacuum, pp.765-768
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Simulations of beam dynamics and beam lifetime for the prototype EDM ring / S Siddique (Darmstadt, GSI ; Aachen, Tech. Hochsch.) ; Lehrach, A (Aachen, Tech. Hochsch. ; Julich, Forschungszentrum) ; Pretz, J (Julich, Forschungszentrum) ; Carli, C (CERN) /JEDI Collaboration ; CPEDM Collaboration
The matter-antimatter asymmetry may be explained through CP-violation by observing a permanent electric dipole moment (EDM) of subatomic particles. An advanced approach to measure the EDM of charged particles is to apply a unique method of "Frozen spin" on a polarized beam in a storage ring. [...]
2023 - 4 p. - Published in : JACoW IPAC 2023 (2023) TUPM078 Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.TUPM078
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A systematic Effect in EDM Rings due to radial Offsets of electrostatic Bendings and longitudinal Magnetic Fields / Cilento, Vera (CERN) ; Carli, Christian (CERN)
Optimization and realistic estimates of the sensitivity of the measurement of charged particle Electric Dipole Moment (EDM) in storage rings require a good understanding of systematic errors that can contribute to a vertical spin build-up mimicking the EDM signal to be detected. A specific case of systematic effects due to offsets of electrostatic bendings and longitudinal magnetic fields is studied. [...]
CERN-PBC-REPORT-2024-002.- Geneva : CERN, 2024 - 15. Fulltext: PDF;
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Systematic Effects Limiting the Sensitivity of "Magic Energy" Proton EDM Rings / Carli, Christian (CERN) ; Haj Tahar, Malek (CERN ; PSI, Villigen)
Proposals to measure a possible Electric Dipole Moment (EDM) of protons in an electro-static storage ring are studied by a world-wide community. The machine is operated at the so-called "magic energy" to satisfy the "frozen spin" condition such that, without imperfections and with the well known magnetic moment of the particle, the spin is always oriented parallel to the direction of movement. [...]
JACoW, 2021 - 4 p. - Published in : JACoW IPAC 2021 (2021) 602-605 Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.602-605
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CERN Yellow Report Front Cover Storage ring to search for electric dipole moments of charged particles: Feasibility study / Abusaif, F.
The proposed method exploits charged particles confined as a storage ring beam (proton, deuteron, possibly $^3$He) to search for an intrinsic electric dipole moment (EDM) aligned along the particle spin axis [...]
arXiv:1912.07881 ; CERN-2021-003 ; CERN-PBC-REPORT-2019-002 - Geneva : CERN, 2021-06-02. - 257 p. (CERN Yellow Reports: Monographs ; 3/2021)


10.23731/CYRM-2021-003
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Study of systematic effects mimicking EDM signal combining measurements from counter-rotating beams / Cilento, V (CERN) ; Carli, C (CERN)
Optimization and realistic estimates of the sensitivity of the measurement of charged particle Electric Dipole Moment (EDM) in storage rings require a good understanding of systematic errors that can contribute to a vertical spin build-up mimicking the EDM signal to be detected. A specific case of systematic effect due to offsets of electrostatic bendings and longitudinal magnetic fields is studied. [...]
2023 - 4 p. - Published in : JACoW IPAC 2023 (2023) MOPA087 Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.MOPA087
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Electric and Magnetic Dipole Moments / Yannis Semertzidis (speaker) (Brookhaven National Laboratory)
Outline of the lecture: The stringent limit on the electric dipole moment of the neutron forced the issue on the strong CP-problem. The most elegant solution of which is the axion field proposed by Peccei and Quinn. [...]
2005 - 6707. Special Lecture Series; 1<sup>st</sup> Joint ILIAS-CAST-CERN Axion Training External links: Talk details; Event details In : 1st Joint ILIAS-CAST-CERN Axion Training
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Bionic Hearing: the Science and the Experience / Shipsey, Ian (speaker) (University of Oxford (GB))
Cochlear implants are the first device to successfully restore neural function.  They have instigated a popular but controversial revolution in the treatment of deafness, and they serve as a model for research in neuroscience and biomedical engineering.  After a visual tour of the physiology of natural hearing the function of cochlear implants will be described in the context of electrical engineering, psychophysics, clinical evaluation, and my own personal experience.  The audience will have the opportunity to experience speech and music heard through a cochlear implant. The social implications of cochlear implantation and the future outlook for auditory prostheses will also be discussed.                                                                                                                                                                                                                            About the speaker: Ian Shipsey is a particle physicist, and Professor of Physics at Oxford University.  He has been profoundly deaf since 1989. [...]
2018 - 5520. CERN Colloquium External link: Event details In : Bionic Hearing: the Science and the Experience
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On solving the Thomas Bargman-Michel-Telegdi equation using the Bogoliubov Krylov method of averages and the calculation of the Berry phases / Tahar, Malek Haj (CERN) ; Carli, Christian (CERN)
Several proposals aimed at measuring the Electric Dipole Moment (EDM) for charged particles require very precise simulations and understanding of the systematic errors that can contribute to a spin buildup mimicking the EDM signal to be detected. [...]
arXiv:1904.07722 ; CERN-PBC-Notes-2021-010. - 2019. - 39 p.
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