The search for the neutron electric dipole moment at the Paul Scherrer Institute

被引：52

作者：

Baker, C. A. ^{[1
]}

Ban, G. ^{[2
]}

Bodek, K. ^{[3
]}

Burghoff, M. ^{[4
]}

Chowdhuri, Z. ^{[5
]}

Daum, M. ^{[5
,6
,7
]}

Fertl, M. ^{[5
,8
]}

Franke, B. ^{[5
,6
]}

Geltenbort, P. ^{[9
]}

Green, K. ^{[1
,10
]}

van der Grinten, M. G. D. ^{[1
,10
]}

Gutsmiedl, E. ^{[11
]}

Harris, P. G. ^{[10
]}

Henneck, R. ^{[5
]}

Iaydjiev, P. ^{[1
,12
]}

Ivanov, S. N. ^{[1
]}

Khomutov, N. ^{[12
]}

Kasprzak, M. ^{[13
]}

Kirch, K. ^{[5
,8
]}

Kistryn, S. ^{[3
]}

Knappe-Grueneberg, S. ^{[4
]}

Knecht, A. ^{[5
]}

Knowles, P. ^{[13
]}

Kozela, A. ^{[14
]}

Lauss, B. ^{[5
]}

Lefort, T. ^{[2
]}

Lemiere, Y. ^{[2
]}

Naviliat-Cuncic, O. ^{[2
,15
]}

Pendlebury, J. M. ^{[10
]}

Pierre, E. ^{[2
,5
]}

Piegsa, F. M.

Pignol, G. ^{[16
]}

Quemener, G. ^{[2
]}

Roccia, S. ^{[17
]}

Schmidt-Wellenburg, P. ^{[5
]}

Shiers, D. ^{[10
]}

Smith, K. F. ^{[10
]}

Schnabel, A. ^{[4
]}

Trahms, L. ^{[4
]}

Weis, A. ^{[13
]}

Zejma, J. ^{[3
]}

Zenner, J. ^{[5
,18
]}

Zsigmond, G. ^{[5
]}

机构：

[1] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England

[2] Univ Caen, ENSICAEN, LPC Caen, F-14050 Caen, France

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

[4] Phys Tech Bundesanstalt, Berlin, Germany

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

[6] Tech Univ Munich, Excellence Cluster, D-85748 Garching, Germany

[7] Univ Virginia, Dept Phys, Charlottesville, VA 22903 USA

[8] ETH, CH-8093 Zurich, Switzerland

[9] Institut Laue Langevin, F-38042 Grenoble, France

[10] Univ Sussex, Dept Phys & Astron, Brighton BN19QH, E Sussex, England

[11] Tech Univ Munich, D-85748 Garching, Germany

[12] Joint Inst Nucl Res, Dubna 141980, Russia

[13] Univ Fribourg, CH-1700 Fribourg, Switzerland

[14] H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland

[15] Michigan State Univ, E Lansing, MI 48824 USA

[16] Univ Grenoble 1, CNRS, Inst Natl Poltech Grenoble, LPSC, F-38026 Grenoble, France

[17] Katholieke Univ Leuven, Inst Kern Stralingsfys, B-3001 Heverlee, Belgium

[18] Johannes Gutenberg Univ Mainz, Inst Kernchem, D-55128 Mainz, Germany

来源：

2ND INTERNATIONAL WORKSHOP ON THE PHYSICS OF FUNDAMENTAL SYMMETRIES AND INTERACTIONS (PSI) | 2011年 / 17卷

关键词：

Neutron electric dipole moment; Magnetometry; Ultracold neutrons;

D O I：

10.1016/j.phpro.2011.06.032

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

The measurement of the neutron electric dipole moment (nEDM) constrains the contribution of CP-violating terms within both the Standard Model and its extensions. The experiment uses ultracold neutrons (UCN) stored in vacuum at room temperature. This technique provided the last (and best) limit by the RAL/Sussex/ILL collaboration in 2006: d(n) < 2.9 x 10(-26) e cm (90% C. L.). We aim to improve the experimental sensitivity by a factor of 5 within 2-3 years, using an upgrade of the same apparatus. We will take advantage of the increased ultracold neutron density at the Paul Scherrer Institute (PSI) and of a new concept including both, external magnetometers and a cohabiting magnetometer. In parallel, a next generation apparatus with two UCN storage chambers and an elaborate magnetic field control is being designed aiming to achieve another order of magnitude increase in sensitivity, allowing us to put a limit as tight as d(n) < 5 x 10(-28) e cm (95% C. L.), if not establishing a finite value.

引用

页数：9

共 11 条

[1] The PSI ultra-cold neutron source [J].

Anghel, A. ;

Atchison, F. ;

Blau, B. ;

van den Brandt, B. ;

Daum, M. ;

Doelling, R. ;

Dubs, M. ;

Duperrex, P-A. ;

Fuchs, A. ;

George, D. ;

Goetl, L. ;

Hautle, P. ;

Heidenreich, G. ;

Heinrich, F. ;

Henneck, R. ;

Heule, S. ;

Hofmann, Th. ;

Joray, St ;

Kasprzak, M. ;

Kirch, K. ;

Knecht, A. ;

Konter, J. A. ;

Korhonen, T. ;

Kuzniak, M. ;

Lauss, B. ;

Mezger, A. ;

Mtchedlishvili, A. ;

Petzoldt, G. ;

Pichlmaier, A. ;

Reggiani, D. ;

Reiser, R. ;

Rohrer, U. ;

Seidel, M. ;

Spitzer, H. ;

Thomsen, K. ;

Wagner, W. ;

Wohlmuther, M. ;

Zsigmond, G. ;

Zuellig, J. ;

Bodek, K. ;

Kistryn, S. ;

Zejma, J. ;

Geltenbort, P. ;

Plonka, C. ;

Grigoriev, S. .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2009, 611 (2-3) :272-275

[2] Improved experimental limit on the electric dipole moment of the neutron [J].

Baker, C. A. ;

Doyle, D. D. ;

Geltenbort, P. ;

Green, K. ;

van der Grinten, M. G. D. ;

Harris, P. G. ;

Iaydjiev, P. ;

Ivanov, S. N. ;

May, D. J. R. ;

Pendlebury, J. M. ;

Richardson, J. D. ;

Shiers, D. ;

Smith, K. F. .

PHYSICAL REVIEW LETTERS, 2006, 97 (13)

[3] UCN detection with 6Li-doped glass scintillators [J].

Ban, G. ;

Bodek, K. ;

Lefort, T. ;

Naviliat-Cuncic, O. ;

Pierre, E. ;

Plonka, C. ;

Rogel, G. .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2009, 611 (2-3) :280-283

[4] Storage of ultracold neutrons in high resistivity, non-magnetic materials with high Fermi potential [J].

Bodek, K. ;

Daum, M. ;

Henneck, R. ;

Heule, S. ;

Kasprzak, M. ;

Kirch, K. ;

Knecht, A. ;

Kuzniak, M. ;

Lauss, B. ;

Meier, M. ;

Petzoldt, G. ;

Schneider, M. ;

Zsigmond, G. .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2008, 597 (2-3) :222-226

[5] EVIDENCE FOR 2PI DECAY OF K2DEGREES MESON [J].

CHRISTENSON, JH ;

FITCH, VL ;

CRONIN, JW ;

TURLAY, R .

PHYSICAL REVIEW LETTERS, 1964, 13 (04) :138-+

[6] Performance of an atomic mercury magnetometer in the neutron EDM experiment [J].

Green, K ;

Harris, PG ;

Iaydjiev, P ;

May, DJR ;

Pendlebury, JM ;

Smith, KF ;

van der Grinten, M ;

Geltenbort, P ;

Ivanov, S .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1998, 404 (2-3) :381-393

[7] Improved Limit on the Permanent Electric Dipole Moment of 199Hg [J].

Griffith, W. C. ;

Swallows, M. D. ;

Loftus, T. H. ;

Romalis, M. V. ;

Heckel, B. R. ;

Fortson, E. N. .

PHYSICAL REVIEW LETTERS, 2009, 102 (10)

[8]

Groeger S., 2005, APPL PHYS B, VB 80, P6

[9] Geometric-phase-induced false electric dipole moment signals for particles in traps [J].

Pendlebury, JM ;

Heil, W ;

Sobolev, Y ;

Harris, PG ;

Richardson, JD ;

Baskin, RJ ;

Doyle, DD ;

Geltenbort, P ;

Green, K ;

van der Grinten, MGD ;

Iaydjiev, PS ;

Ivanov, SN ;

May, DJR ;

Smith, KF .

PHYSICAL REVIEW A, 2004, 70 (03) :032102-1

[10]

Roccia S., 2009, THESIS U J FOURRIER

← 1 2 →