Advanced Cold Molecule Electron EDM
| Autor: | ACME Collaboration, Campbell, Wesley C., Chan, Cheong, DeMille, David, Doyle, John M., Gabrielse, Gerald, Gurevich, Yulia V., Hess, Paul W., Hutzler, Nicholas R., Kirilov, Emil, OLeary, Brendon, Petrik, Elizabeth S., Spaun, Ben, Vutha, Amar C. |
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| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | EPJ Web of Conferences 57, 02004 (2013) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1051/epjconf/20135702004 |
| Popis: | Measurement of a non-zero electric dipole moment (EDM) of the electron within a few orders of magnitude of the current best limit of |d_e| < 1.05 e -27 e cm would be an indication of physics beyond the Standard Model. The ACME Collaboration is searching for an electron EDM by performing a precision measurement of electron spin precession in the metastable H state of thorium monoxide (ThO) using a slow, cryogenic beam. We discuss the current status of the experiment. Based on a data set acquired from 14 hours of running time over a period of 2 days, we have achieved a 1-sigma statistical uncertainty of 1 e -28 e cm/T^(1/2), where T is the running time in days. Comment: International Conference for Atomic Physics (ICAP) 2012 proceedings paper. Accepted for publication in the European Physical Journal (EPJ). 13 pages, 5 figures, 3 tables |
| Databáze: | arXiv |
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