Riemann-Cartan space in O-theory

DOI10.1134/S0202289312020065zbMATH Open1252.83076arXiv0808.2673OpenAlexW3101211722MaRDI QIDQ1761370

Author name not available (Why is that?)

Publication date: 15 November 2012

Published in: (Search for Journal in Brave)

Abstract: We used a torsion pendulum containing $approx10^{23}$ polarized electrons to search new interactions that couple to electron spin. We limit CP-violating interactions between the pendulum's electrons and unpolarized matter in the earth or the sun, test for rotation and boost-dependent preferred-frame effects using the earth's rotation and velocity with respect to the entire cosmos, and search for exotic velocity-dependent potentials between polarized electrons and unpolarized matter in the sun and moon. Finally, we find that the gravitational mass of an electron spinning toward the galactic center differs by less than about 1 part in $10^{21}$ from an electron spinning in the opposite direction. As a byproduct of this work, the density of polarized electrons in Sm${\displaystyle }$Co${}_5$ was measured to be $(4.19pm0.19)imes10^{22}{mcm}^{-3}$ at a field of 9.6 kG.

Full work available at URL: https://arxiv.org/abs/0808.2673

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