Würzburg 2018 – wissenschaftliches Programm
AKBP 3.4: Vortrag
Montag, 19. März 2018, 16:45–17:00, NW-Bau - HS5
Search for Electric Dipole Moments at COSY in Jülich - Closed-Orbit and Spin Tracking Simulations — •Vera Schmidt1,2 and Andreas Lehrach1,2 for the JEDI collaboration — 1Forschungszentrum Jülich, IKP-4, Jülich, Deutschland — 2III. Physikalisches Institut B, RWTH Aachen University, Aachen, Deutschland
The observed matter-antimatter asymmetry in the universe cannot be explained by the Standard Model (SM) of particle physics. In order to resolve the matter dominance an additional CP violating phenomenon is needed. A candiate for physics beyond the SM is a non-vanishing Electric Dipole Moment (EDM) of subatomic particles. Since permanent EDMs violate parity and time reversal symmetries, they are also CP violating if the CPT-theorem is assumed.
The JEDI (Jülich Electric Dipole moment Investigations) collaboration in Jülich is preparing a direct EDM measurement of protons and deuterons first at the storage ring COSY (COoler SYnchrotron) and later at a dedicated storage ring.
Ensuring a precise measurement, various beam and spin manipulating effects have to be considered and investigated. Therefore closed orbit and spin tracking simulations are performed in order to quantify the effect of systematics on the EDM measurement and to predict the accuracy of the experiment. The EDM measurement method, as well as simulation results will be presented.