9-14 September 2018
University of Ferrara
Europe/Rome timezone
23RD INTERNATIONAL SPIN SYMPOSIUM

General relativity experiment with frozen spin rings

12 Sep 2018, 17:55
25m
A11 (Polo degli Adelardi - Via Adelardi, 33)

A11

Polo degli Adelardi - Via Adelardi, 33

Parallel Sessions Application of Nuclear Polarization Techniques to Other Fields Application of Nuclear Polarization Techniques to Other Fields

Speaker

Andras Laszlo (Wigner Research Centre for Physics of the Hungarian Academy of Sciences)

Description

In a recent paper (https://doi.org/10.1088/1361-6382/aacfee), a general relativistic (GR) calculation was presented on the Earth's gravitational effect in a mixed magnetic-electric frozen spin storage ring on the spin transport. It was shown that GR causes a precession out of the orbital plane in a frozen spin ring, i.e. a slow vertical polarization buildup will be present, given that the initial beam polarization was longitudinal. The rate of the vertical polarization buildup is predicted to be -a*betagamma*g/c, where g is the gravitational acceleration on the surface of the Earth, c is speed of light, betagamma is the particle momentum over mass, and a is its magnetic moment anomaly. It is seen that the effect increases unboundedly with the Lorentz factor gamma. Moreover, is proportional to the magnetic moment anomaly a. The talk shall mainly address the experimental perspectives to detect this GR effect.

Primary author

Andras Laszlo (Wigner Research Centre for Physics of the Hungarian Academy of Sciences)

Presentation Materials