Advanced cold molecule electron EDM

被引：10

作者：

Campbell, Wesley C. ^{[1
]}

Chan, Cheong ^{[1
]}

DeMille, David ^{[1
]}

Doyle, John M. ^{[1
]}

Gabrielse, Gerald ^{[1
]}

Gurevich, Yulia V. ^{[1
]}

Hess, Paul W. ^{[1
]}

Hutzler, Nicholas R. ^{[1
]}

Kirilov, Emil ^{[1
]}

O'Leary, Brendon ^{[1
]}

Petrik, Elizabeth S. ^{[1
]}

Spaun, Ben ^{[1
]}

Vutha, Amar C. ^{[1
]}

机构：

[1] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA

来源：

ICAP 2012 - 23RD INTERNATIONAL CONFERENCE ON ATOMIC PHYSICS | 2013年 / 57卷

基金：

美国国家科学基金会;

关键词：

DIPOLE MOMENT; SEARCH; BEAM;

D O I：

10.1051/epjconf/20135702004

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Measurement of a non-zero electric dipole moment (EDM) of the electron within a few orders of magnitude of the current best limit of vertical bar d(e)vertical bar < 1.05 x 10(-27) e . cm [1] 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 (3)Lambda(1) 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 delta d(e) = 1 x 10(-28) e . cm/root T, where T is the running time in days.

引用

页数：13

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