Test of Lorentz invariance with spin precession of ultracold neutrons

Altarev, I.; Baker, C. A.; Ban, G.; Bison, Georg; Bodek, K.; Daum, M.; Fierlinger, P.; Geltenbort, P.; Green, K.; Grinten, M. G. D. van der; Gutsmiedl, E.; Harris, P. G.; Heil, W.; Henneck, R.; Horras, M.; Iaydjiev, P.; Ivanov, S. N.; Khomutov, N.; Kirch, K.; Kistryn, S.; Knecht, A.; Knowles, Paul E.; Kozela, A.; Kuchler, F.; Kuźniak, M.; Lauer, T.; Lauss, B.; Lefort, T.; Mtchedlishvili, A.; Naviliat-Cuncic, O.; Pazgalev, Anatoly; Pendlebury, J. M.; Petzoldt, G.; Pierre, E.; Pignol, G.; Quéméner, G.; Rebetez, Martin; Rebreyend, D.; Roccia, S.; Rogel, G.; Severijns, N.; Shiers, D.; Sobolev, Yu.; Weis, Antoine; Zejma, J.; Zsigmond, G.

doi:10.1103/PhysRevLett.103.081602

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Journal article

Test of Lorentz invariance with spin precession of ultracold neutrons

Altarev, I. Technische Universität München, Garching, Germany
Baker, C. A. Rutherford Appleton Laboratory, Chilton, Didcot, United Kingdom
Ban, G. LPC Caen, Université de Caen, France
Bison, Georg Department of Neurology, Friedrich–Schiller–University, Jena, Germany
Bodek, K. Marian Smoluchowski Institute of Physics, Jagiellonian University,Cracow, Poland
Daum, M. Paul Scherrer Institut (PSI), Villigen, Switzerland
Fierlinger, P. Excellence Cluster “Universe,” Technische Universität München, Garching, Germany
Geltenbort, P. Institut Laue–Langevin, Grenoble, France
Green, K. Rutherford Appleton Laboratory, Chilton, Didcot, United Kingdom - Department of Physics and Astronomy, University of Sussex, Falmer, Brighton, United Kingdom
Grinten, M. G. D. van der Rutherford Appleton Laboratory, Chilton, Didcot, United Kingdom - Department of Physics and Astronomy, University of Sussex, Falmer, Brighton, United Kingdom
Gutsmiedl, E. Technische Universität München, Garching, Germany
Harris, P. G. Department of Physics and Astronomy, University of Sussex, Falmer, Brighton, United Kingdom
Heil, W. Institut für Physik, Johannes–Gutenberg–Universität, Mainz, Germany
Henneck, R. Paul Scherrer Institut (PSI), Villigen, Switzerland
Horras, M. Excellence Cluster “Universe,” Technische Universität München, Garching, Germany - Paul Scherrer Institut (PSI), Villigen, Switzerland
Iaydjiev, P. Rutherford Appleton Laboratory, Chilton, Didcot, United Kingdom
Ivanov, S. N. Rutherford Appleton Laboratory, Chilton, Didcot, United Kingdom
Khomutov, N. JINR, Dubna, Moscow Region, Russia
Kirch, K. Paul Scherrer Institut (PSI), Villigen, Switzerland
Kistryn, S. Marian Smoluchowski Institute of Physics, Jagiellonian University,Cracow, Poland
Knecht, A. Paul Scherrer Institut (PSI), Villigen, Switzerland
Knowles, Paul E. Department of Physics, University of Fribourg, Switzerland
Kozela, A. Henryk Niedwodniczański Institute for Nuclear Physics, Cracow, Poland
Kuchler, F. Excellence Cluster “Universe,” Technische Universität München, Garching, Germany
Kuźniak, M. Marian Smoluchowski Institute of Physics, Jagiellonian University,Cracow, Poland - Paul Scherrer Institut (PSI), Villigen, Switzerland
Lauer, T. Institut für Kernchemie, Johannes–Gutenberg–Universität, Mainz, Germany
Lauss, B. Paul Scherrer Institut (PSI), Villigen, Switzerland
Lefort, T. LPC Caen, Université de Caen, France
Mtchedlishvili, A. Paul Scherrer Institut (PSI), Villigen, Switzerland
Naviliat-Cuncic, O. LPC Caen, Université de Caen, France
Pazgalev, Anatoly Department of Physics, University of Fribourg, Switzerland
Pendlebury, J. M. Department of Physics and Astronomy, University of Sussex, Falmer, Brighton, United Kingdom
Petzoldt, G. Paul Scherrer Institut (PSI), Villigen, Switzerland
Pierre, E. LPC Caen, Université de Caen, France - Paul Scherrer Institut (PSI), Villigen, Switzerland
Pignol, G. LPSC, Université Joseph Fourier Grenoble, France
Quéméner, G. LPC Caen, Université de Caen, France
Rebetez, Martin Department of Physics, University of Fribourg, Switzerland
Rebreyend, D. LPSC, Université Joseph Fourier Grenoble, France
Roccia, S. LPSC, Université Joseph Fourier Grenoble, France
Rogel, G. LPC Caen, Université de Caen, France - Institut Laue–Langevin, Grenoble, France
Severijns, N. Instituut voor Kern–en Stralingsfysica, Katholieke Universiteit Leuven, Belgium
Shiers, D. Department of Physics and Astronomy, University of Sussex, Falmer, Brighton, United Kingdom
Sobolev, Yu. Institut für Physik, Johannes–Gutenberg–Universität, Mainz, Germany
Weis, Antoine Department of Physics, University of Fribourg, Switzerland
Zejma, J. Marian Smoluchowski Institute of Physics, Jagiellonian University,Cracow, Poland
Zsigmond, G. Paul Scherrer Institut (PSI), Villigen, Switzerland

20.08.2009

Published in:

Physical Review Letters. - 2009, vol. 103, no. 8, p. 081602

English A clock comparison experiment, analyzing the ratio of spin precession frequencies of stored ultracold neutrons and ¹⁹⁹Hg atoms, is reported. No daily variation of this ratio could be found, from which is set an upper limit on the Lorentz invariance violating cosmic anisotropy field b_⊥<2×10⁻²⁰ eV (95% C.L.). This is the first limit for the free neutron. This result is also interpreted as a direct limit on the gravitational dipole moment of the neutron |g_n|<0.3 eV/c² m from a spin-dependent interaction with the Sun. Analyzing the gravitational interaction with the Earth, based on previous data, yields a more stringent limit |g_n|<3×10⁻⁴ eV/c² m

Faculty

Faculté des sciences et de médecine

Department

Département de Physique

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