IPAC2014 - List of Authors (Chekmenev, S.)

Paper	Title	Page
THPRO056	Estimation of Systematic Errors for Deuteron Electric Dipole Moment (EDM) Search at a Storage Ring	2998
	S. Chekmenev RWTH, Aachen, Germany
	An experimental method which is aimed to find a permanent EDM of a charged particle was proposed by JEDI (Jülich Electric Dipole moment Investigations) collaboration in 2012. EDMs can be observed by their small influence on spin motion. The only possible way to perform a direct measurement is to use a storage ring. For this purpose it was decided to carry out the first precursor experiment at the Cooler Synchrotron (COSY). Since the EDM of a particle violates CP invariance and is expected to be tiny, treatment of all various sources of systematic errors should be done with a great level of precision. One should clearly understand how misalignments of the magnets affects the beam and the spin motion. In reality, one of the methods to investigate spin behavior in the presence of misalignments in a storage ring is to mimic their influence on the beam parameters using small orbit kicks with different amplitudes. In this talk the first simulations of orbit excitations will be discussed. The corresponding spin tune shifts will be considered. The influence of the distorted orbit on the polarization build-up caused by the EDM will be examined. A. Lehrach, F. Rathmann, J. Pretz et al., "Search for Permanent Electric Dipole Moments at COSY. Step 1: Spin coherence and systematic error studies", 2012
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-THPRO056
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

Estimation of Systematic Errors for Deuteron Electric Dipole Moment (EDM) Search at a Storage Ring

2998

S. Chekmenev
RWTH, Aachen, Germany

An experimental method which is aimed to find a permanent EDM of a charged particle was proposed by JEDI (Jülich Electric Dipole moment Investigations) collaboration in 2012*. EDMs can be observed by their small influence on spin motion. The only possible way to perform a direct measurement is to use a storage ring. For this purpose it was decided to carry out the first precursor experiment at the Cooler Synchrotron (COSY). Since the EDM of a particle violates CP invariance and is expected to be tiny, treatment of all various sources of systematic errors should be done with a great level of precision. One should clearly understand how misalignments of the magnets affects the beam and the spin motion. In reality, one of the methods to investigate spin behavior in the presence of misalignments in a storage ring is to mimic their influence on the beam parameters using small orbit kicks with different amplitudes. In this talk the first simulations of orbit excitations will be discussed. The corresponding spin tune shifts will be considered. The influence of the distorted orbit on the polarization build-up caused by the EDM will be examined.
* A. Lehrach, F. Rathmann, J. Pretz et al., "Search for Permanent Electric Dipole Moments at COSY. Step 1: Spin coherence and systematic error studies", 2012

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-THPRO056

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)