Constraining interactions mediated by axion-like particles with ultracold neutrons

被引：26

作者：

Afach, S. ^{[1
,2
,3
]}

Ban, G. ^{[4
]}

Bison, G. ^{[2
]}

Bodek, K. ^{[5
]}

Burghoff, M. ^{[6
]}

Daum, M. ^{[2
]}

Fertl, M. ^{[1
,2
]}

Franke, B. ^{[1
,2
]}

Grujic, Z. D. ^{[7
]}

Helaine, V. ^{[2
,4
]}

Kasprzak, M. ^{[7
]}

Kermaidic, Y. ^{[8
]}

Kirch, K. ^{[1
,2
]}

Knowles, P. ^{[7
]}

Koch, H. -C. ^{[7
,9
]}

Komposch, S. ^{[1
,2
]}

Kozela, A. ^{[10
]}

Krempel, J. ^{[1
]}

Lauss, B. ^{[2
]}

Lefort, T. ^{[4
]}

Lemiere, Y. ^{[4
]}

Mtchedlishvili, A. ^{[2
]}

Naviliat-Cuncic, O. ^{[4
]}

Piegsa, F. M. ^{[1
]}

Pignol, G. ^{[8
]}

Prashanth, P. N. ^{[11
]}

Quemener, G. ^{[4
]}

Rebreyend, D. ^{[8
]}

Ries, D. ^{[1
,2
]}

Roccia, S. ^{[12
]}

Schmidt-Wellenburg, P. ^{[2
]}

Schnabel, A. ^{[6
]}

Severijns, N. ^{[11
]}

Voigt, J. ^{[6
]}

Weis, A.

Wyszynski, G. ^{[1
,5
]}

Zejma, J. ^{[5
]}

Zenner, J. ^{[1
]}

Zsigmond, G. ^{[2
]}

机构：

[1] ETH, Inst Particle Phys, CH-8093 Zurich, Switzerland

[2] Paul Scherrer Inst, CH-5232 Villigen, Switzerland

[3] Jena Univ Hosp, Hans Berger Dept Neurol, D-07747 Jena, Germany

[4] Univ Caen, CNRS, IN2P3, LPC Caen,ENSICAEN, F-14032 Caen, France

[5] Jagiellonian Univ, Marian Smoluchowski Inst Phys, PL-30059 Krakow, Poland

[6] Phys Tech Bundesanstalt, D-10587 Berlin, Germany

[7] Univ Fribourg, Dept Phys, CH-1700 Fribourg, Switzerland

[8] Univ Grenoble Alpes, CNRS, IN2P3, LPSC, Grenoble, France

[9] Johannes Gutenberg Univ Mainz, Inst Phys, D-55128 Mainz, Germany

[10] Henryk Niedwodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland

[11] Univ Louvain, Inst Kern Stralingsfys, B-3001 Louvain, Belgium

[12] Univ Paris 11, CNRS, IN2P3, CSNSM, Orsay, France

来源：

PHYSICS LETTERS B | 2015年 / 745卷

基金：

瑞士国家科学基金会;

关键词：

CP violation; Short range spin-dependent interaction; Axion; Axion-like particle; Ultracold neutrons; Neutron electric dipole moment; FORCES; SEARCH; MOMENTS; PHYSICS;

D O I：

10.1016/j.physletb.2015.04.024

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report a new limit on a possible short range spin-dependent interaction from the precise measurement of the ratio of Larmor precession frequencies of stored ultracold neutrons and Hg-199 atoms confined in the same volume. The measurement was performed in a similar to 1 mu T vertical magnetic holding field with the apparatus searching for a permanent electric dipole moment of the neutron at the Paul Scherrer Institute. A possible coupling between freely precessing polarized neutron spins and unpolarized nucleons of the wall material can be investigated by searching for a tiny change of the precession frequencies of neutron and mercury spins. Such a frequency change can be interpreted as a consequence of a short range spin-dependent interaction that could possibly be mediated by axions or axion-like particles. The interaction strength is proportional to the CP violating product of scalar and pseudoscalar coupling constants g(S)g(P). Our result confirms limits from complementary experiments with spin-polarized nuclei in a model-independent way. Limits from other neutron experiments are improved by up to two orders of magnitude in the interaction range of 10(-6) < lambda < 10(-4) m. (C) 2015 The Authors. Published by Elsevier B.V.

引用

页码：58 / 63

页数：6

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