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CERN Document Server	Znaleziono 2,017 rekordów 1 - 10 skocz do rekordu:	Szukanie trwało 1.94 sekund.

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Geometric phase effect study in electric dipole moment rings / Carli, Christian (CERN) ; Haj Tahar, Malek (CERN)
Several proposals to measure a possible small electric dipole moment (EDM) of charged particles aligned with the spin and the well-known magnetic dipole moment (MDM) are based on the concept to circulate bunches with an initial polarization in the horizontal plane and to observe the buildup of a vertical spin component caused by the EDM. Most proposals aim at operating the ring with “frozen spin,” such that, with an MDM only, the spin remains aligned with the trajectory. [...]
2022 - 10 p. - Published in : Phys. Rev. Accel. Beams 25 (2022) 064001 Fulltext: PDF;

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(91)

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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(49)

Systematic error studies for the charged particle EDM measurement proposal / Haj Tahar, M. (CERN) ; Carli, C. (CERN)
Proposals aimed at measuring the Electric Dipole Moment (EDM) for charged particles require a good understanding of the systematic errors that can contribute to a vertical spin buildup mimicking the EDM signal to be detected. In what follows, a method of averaging emanating from the Bogoliubov-Krylov Mitropolski method is employed to solve the T-BMT equation and calculate the Berry phases arising for the storage ring frozen spin concept. [...]
arXiv:2008.12058; CERN-PBC-Notes-2021-011.- 2021-03-25 - 15 p. - Published in : Phys. Rev. Accel. Beams 24 (2021) 034003 Fulltext: PDF; Fulltext from Publisher: PDF; Fulltext from publisher: PDF;

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(46)

Systematic Errors of a ”frozen Spin” EDM measurement with electric and magnetic Fields due to imperfect Alignment of Fields / Cilento, Vera (CERN) ; Carli, Christian (CERN) ; Haj Tahar, Malek (CERN)
Many of the rings proposed to measure the Electric Dipole Moment (EDM) of charged particles rely on a combination of magnetic and electric fields bending the beam to fulfil the ”frozen spin” condition. Imperfect alignment of the two fields bending the beam is known to rotate the spin from the longitudinal into the vertical direction. [...]
CERN-PBC-Notes-2023-009.- Geneva : CERN, 28 - 15. Fulltext: PDF;

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(40)

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.
Fulltext

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(33)

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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(30)

Vertical Spin build-up due to Vertical Offset in Quadrupoles and Horizontal Betatron Oscillations / Cilento, Vera (CERN) ; Carli, Christian (CERN)
Many proposals to measure a possible small Electric Dipole Moment (EDM) of charged particles are based on the magic energy concept. Without EDM and for a ring without imperfections, an initial longitudinal polarization of a bunch is maintained in electro-static bendings by operation at a particular energy called the magic energy. [...]
CERN-PBC-REPORT-2024-001.- Geneva : CERN, 2024 Fulltext: PDF;

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(30)

Limitations of radial magnetic field estimates from counter-rotating beams in an electro-static EDM ring / Carli, C (CERN) ; Cilento, V (CERN)
Proposals to measure a possible Electric Dipole Moment (EDM) of protons in an electro-static machine 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 the well-known magnetic moment of the particle, the spin is always oriented parallel or antiparallel to the direction of movement. [...]
2023 - 4 p. - Published in : JACoW IPAC 2023 (2023) WEPL027 Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.WEPL027

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(24)

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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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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