New CP-violation and preferred-frame tests with polarized electrons
| dc.creator | Heckel, B. R. | |
| dc.creator | Cramer, C. E. | |
| dc.creator | Cook, T. S. | |
| dc.creator | Adelberger, E. G. | |
| dc.creator | Schlamminger, S. | |
| dc.creator | Schmidt, U. | |
| dc.date | 2006-06-21 | |
| dc.date.accessioned | 2026-07-07T11:58:47Z | |
| dc.date.available | 2026-07-07T11:58:47Z | |
| dc.description | We used a torsion pendulum containing $\sim 9 \times 10^{22}$ polarized electrons to search for CP-violating interactions between the pendulum's electrons and unpolarized matter in the laboratory's surroundings or the sun, and to test for preferred-frame effects that would precess the electrons about a direction fixed in inertial space. We find $|g_{\rm P}^e g_{\rm S}^N|/(\hbar c)< 1.7 \times 10^{-36}$ and $|g_{\rm A}^e g_{\rm V}^N|/(\hbar c) < 4.8 \times 10^{-56}$ for $λ> 1$AU. Our preferred-frame constraints, interpreted in the Kostelecký framework, set an upper limit on the parameter $|\bm{\tilde {b}}^e| \leq 5.0 \times 10^{-21}$ eV that should be compared to the benchmark value $m_e^2/M_{\rm Planck}= 2 \times 10^{-17}$ eV. | |
| dc.description | 4 figures, accepted for publication in Physical Review Letters | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0606218 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0606218 | |
| dc.identifier | Phys.Rev.Lett.97:021603,2006 | |
| dc.identifier | doi:10.1103/PhysRevLett.97.021603 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/206341 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | New CP-violation and preferred-frame tests with polarized electrons | |
| dc.type | text |