TY - GEN

T1 - QUASI-FROZEN SPIN METHOD FOR EDM DEUTERON SEARCH

AU - Senichev, Yu.

AU - Lehrach, A.

AU - Lorentz, B.

AU - Maier, R.

AU - Andrianov, S.

AU - Ivanov, A.

AU - Chekmenev, S.

AU - Berz, M.

AU - Valetov, E.

N1 - Conference code: 6

PY - 2015

Y1 - 2015

N2 - To search for proton Electric Dipole Moments (EDM) using proton storage ring with purely electrostatic elements, the concept of frozen spin method has been proposed [1]. This method is based on two facts: in the equation of spin precession, the magnetic field dependence is entirely eliminated, and at the “magic” energy, the spin precession frequency coincides with the precession frequency of the particle momentum. In case of deuteron we have to use the electrical and magnetic field simultaneously as will be explained later, keeping the frozen spin direction along the momentum as in the pure electrostatic ring. In this article, we suggest the concept of the quasi-frozen spin, in which the spin oscillates around the momentum direction within the half value of the advanced spin phase in magnetic arcs, each time returning back in electrostatic arcs. Due to the low value of the anomalous magnetic moment of deuteron, an effective contribution to the expected EDM effect is reduced only by a few percent compared with

AB - To search for proton Electric Dipole Moments (EDM) using proton storage ring with purely electrostatic elements, the concept of frozen spin method has been proposed [1]. This method is based on two facts: in the equation of spin precession, the magnetic field dependence is entirely eliminated, and at the “magic” energy, the spin precession frequency coincides with the precession frequency of the particle momentum. In case of deuteron we have to use the electrical and magnetic field simultaneously as will be explained later, keeping the frozen spin direction along the momentum as in the pure electrostatic ring. In this article, we suggest the concept of the quasi-frozen spin, in which the spin oscillates around the momentum direction within the half value of the advanced spin phase in magnetic arcs, each time returning back in electrostatic arcs. Due to the low value of the anomalous magnetic moment of deuteron, an effective contribution to the expected EDM effect is reduced only by a few percent compared with

KW - Electric Dipole Moments

KW - proton storage ring

KW - “magic” energy

KW - frozen spinmethod

M3 - Conference contribution

SN - 978-3-95450-168-7

SP - 213

EP - 215

BT - Proceedings of IPAC2015, Richmond, VA, USA

PB - JACoW

T2 - International Particle Accelerator Conference

Y2 - 2 May 2015 through 7 May 2015

ER -