ACME

Compact Actively-Shielded Magnetic Field Coil within Mu-Metal Shields for ACME Electric Dipole Moment Measurements

A system of actively-shielded coils and mu-metal shields is devised, constructed and shown to provide the stable and spatially uniform …

S. Liu, M. Watts, C. Diver, D. G. Ang, C. Meisenhelder, X. Fan, B. Hao, D. Lascar, Ayami Hiramoto, T. Masuda, P. Hu, Z. Han, X. Wu, D. DeMille, John M. Doyle, G. Gabrielse

Compact Actively-Shielded Magnetic Field Coil within Mu-Metal Shields for ACME Electric Dipole Moment Measurements

A cryogenic buffer gas beam source with in-situ ablation target replacement

The design and performance of a cryogenic buffer gas beam (CBGB) source with a load-lock system is presented. The ACME III electron …

Z. Han, Zack Lasner, C. Diver, P. Hu, T. Masuda, X. Wu, A. Hiramoto, M. Watts, S. Uetake, K. Yoshimura, X. Fan, G. Gabrielse, John M. Doyle, D. DeMille

SiPM module for the ACME III electron EDM search

This report shows the design and the performance of a large area Silicon Photomultiplier (SiPM) module developed detection of …

A. Hiramoto, T. Masuda, D.G. Ang, C. Meisenhelder, C. Panda, N. Sasao, S. Uetake, X. Wu, D. DeMille, John M. Doyle, G. Gabrielse, K. Yoshimura

Suppression of the optical crosstalk in a multi-channel silicon photomultiplier array

We propose and study a method of optical crosstalk suppression for silicon photomultipliers (SiPMs) using optical filters. We …

T. Masuda, D. G. Ang, Nick Hutzler, C. Meisenhelder, N. Sasao, Sa. Uetake, X. Wu, D. DeMille, G. Gabrielse, John M. Doyle, K. Yoshimura

The metastable Q 3Δ2 state of ThO: A new resource for the ACME electron EDM search

The best upper limit for the electron electric dipole moment was recently set by the ACME collaboration. This experiment measures an …

X. Wu, Z. Han, J. Chow, D. Ang, C. Meisenhelder, C. Panda, Elizabeth Petrik West, G. Gabrielse, John M. Doyle, David DeMille

Attaining the shot-noise-limit in the ACME measurement of the electron electric dipole moment

Experimental searches for the electron electric dipole moment, $d_e$, probe new physics beyond the Standard Model. Recently, the ACME …

C. Panda, C. Meisenhelder, M. Verma, D. Ang, J. Chow, Zack Lasner, X. Wu, D. DeMille, John M. Doyle, G. Gabrielse

Improved limit on the electric dipole moment of the electron

The standard model of particle physics accurately describes all particle physics measurements made so far in the laboratory. However, …

V. Andreev, D. G. Ang, D. DeMille, John M. Doyle, G. Gabrielse, J. Haefner, Nick Hutzler, Zack Lasner, C. Meisenhelder, B. R. O’Leary, C. D. Panda, A. D. West, Elizabeth Petrik West, X. Wu

Methods, analysis, and the treatment of systematic errors for the electron electric dipole moment search in thorium monoxide

We recently set a new limit on the electric dipole moment of the electron (eEDM) (J Baron et al and ACME collaboration 2014 Science 343 …

J. Baron, W. Campbell, D. DeMille, John M. Doyle, G. Gabrielse, Y. Gurevich, P. Hess, Nick Hutzler, E. Kirilov, Ivan Kozyryev, B. O’Leary, C. Panda, M. Parsons, B. Spaun, A. Vutha, A. D. West, Elizabeth Petrik West, A. Collaboration

STIRAP preparation of a coherent superposition of ThO H3Δ1 states for an improved electron EDM measurement

Experimental searches for the electron electric dipole moment (EDM) probe new physics beyond the Standard Model. The current best EDM …

C. Panda, B. O'Leary, A.D. West, J. Baron, P. Hess, C. Hoffman, E. Kirilov, C. Overstreet, Elizabeth Petrik West, D. DeMille, John M. Doyle, G. Gabrielse

Zeeman interaction in ThO H3Δ1 for the electron electric-dipole-moment search

The current limit on the electron’s electric dipole moment, $|d_e|<8.7\times{10}^{-29}$ …

A. Petrov, L. Skripnikov, A. Titov, Nick Hutzler, P. Hess, B. O'Leary, B. Spaun, D. DeMille, G. Gabrielse, John M. Doyle