Reduced Limit on the Permanent Electric Dipole Moment of 199Hg

被引：272

作者：

Graner, B. ^{[1
]}

Chen, Y. ^{[1
]}

Lindahl, E. G. ^{[1
]}

Heckel, B. R. ^{[1
]}

机构：

[1] Univ Washington, Dept Phys, Seattle, WA 98195 USA

来源：

PHYSICAL REVIEW LETTERS | 2016年 / 116卷 / 16期

基金：

美国国家科学基金会;

关键词：

VIOLATION; ATOMS;

D O I：

10.1103/PhysRevLett.116.161601

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

This Letter describes the results of the most recent measurement of the permanent electric dipole moment (EDM) of neutral Hg-199 atoms. Fused silica vapor cells containing enriched Hg-199 are arranged in a stack in a common magnetic field. Optical pumping is used to spin polarize the atoms orthogonal to the applied magnetic field, and the Faraday rotation of near-resonant light is observed to determine an electric-field-induced perturbation to the Larmor precession frequency. Our results for this frequency shift are consistent with zero; we find the corresponding Hg-199 EDM d(Hg) = (-2.20 +/- 2.75(stat) +/- 1.48(syst)) x 10(-30)e cm. We use this result to place a new upper limit on the Hg-199 EDM vertical bar d(Hg)vertical bar < 7.4 x 10(-30)e cm (95% C.L.), improving our previous limit by a factor of 4. We also discuss the implications of this result for various CP-violating observables as they relate to theories of physics beyond the standard model.

引用

收藏

页数：5

相关论文

共 28 条

[1] Order of Magnitude Smaller Limit on the Electric Dipole Moment of the Electron [J].

Baron, J. ;

Campbell, W. C. ;

DeMille, D. ;

Doyle, J. M. ;

Gabrielse, G. ;

Gurevich, Y. V. ;

Hess, P. W. ;

Hutzler, N. R. ;

Kirilov, E. ;

Kozyryev, I. ;

O'Leary, B. R. ;

Panda, C. D. ;

Parsons, M. F. ;

Petrik, E. S. ;

Spaun, B. ;

Vutha, A. C. ;

West, A. D. .

SCIENCE, 2014, 343 (6168) :269-272

[2] Nuclear electric dipole moments in chiral effective field theory [J].

Bsaisou, J. ;

de Vries, J. ;

Hanhart, C. ;

Liebig, S. ;

Meissner, Ulf-G. ;

Minossi, D. ;

Nogga, A. ;

Wirzba, A. .

JOURNAL OF HIGH ENERGY PHYSICS, 2015, (03)

[3] Electric dipole moments: A global analysis [J].

Chupp, Timothy ;

Ramsey-Musolf, Michael .

PHYSICAL REVIEW C, 2015, 91 (03)

[4] MSSM baryogenesis and electric dipole moments: an update on the phenomenology [J].

Cirigliano, V. ;

Li, Yingchuan ;

Profumo, S. ;

Ramsey-Musolf, M. J. .

JOURNAL OF HIGH ENERGY PHYSICS, 2010, (01)

[5] Baryon mass splittings and strong CP violation in SU(3) chiral perturbation theory [J].

de Vries, J. ;

Mereghetti, E. ;

Walker-Loud, A. .

PHYSICAL REVIEW C, 2015, 92 (04)

[6] Schiff moment of the mercury nucleus and the proton dipole moment [J].

Dmitriev, VF ;

Sen'kov, RA .

PHYSICAL REVIEW LETTERS, 2003, 91 (21)

[7] Calculation of (P,T)-odd electric dipole moments for the diamagnetic atoms 129Xe, 171Yb, 199Hg, 211Rn, and 225Ra [J].

Dzuba, V. A. ;

Flambaum, V. V. ;

Porsev, S. G. .

PHYSICAL REVIEW A, 2009, 80 (03)

[8] Electric dipole moments of Hg, Xe, Rn, Ra, Pu, and TlF induced by the nuclear Schiff moment and limits on time-reversal violating interactions [J].

Dzuba, VA ;

Flambaum, VV ;

Ginges, JSM ;

Kozlov, MG .

PHYSICAL REVIEW A, 2002, 66 (01) :7

[9] Electric dipole moments of nucleons, nuclei, and atoms: The Standard Model and beyond [J].

Engel, Jonathan ;

Ramsey-Musolf, Michael J. ;

van Kolck, U. .

PROGRESS IN PARTICLE AND NUCLEAR PHYSICS, 2013, 71 :21-74

[10] Violations of fundamental symmetries in atoms and tests of unification theories of elementary particles [J].

Ginges, JSM ;

Flambaum, VV .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2004, 397 (02) :63-154