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New constraints on Lorentz invariance violation from the neutron electric dipole moment

  • I. Altarev
  • , C. A. Baker
  • , G. Ban
  • , K. Bodek
  • , M. Daum
  • , M. Fertl
  • , B. Franke
  • , P. Fierlinger
  • , P. Geltenbort
  • , K. Green
  • , M. G.D. Van Der Grinten
  • , P. G. Harris
  • , R. Henneck
  • , M. Horras
  • , P. Iaydjiev
  • , S. N. Ivanov
  • , N. Khomutov
  • , K. Kirch
  • , S. Kistryn
  • , A. Knecht
  • A. Kozela, F. Kuchler, B. Lauss, T. Lefort, Y. Lemière, A. Mtchedlishvili, O. Naviliat-Cuncic, J. M. Pendlebury, G. Petzoldt, E. Pierre, F. M. Piegsa, G. Pignol, G. Quéméner, D. Rebreyend, S. Roccia, P. Schmidt-Wellenburg, N. Severijns, D. Shiers, K. F. Smith, J. Zejma, J. Zenner, G. Zsigmond

Research output: Contribution to journalArticlepeer-review

25 Scopus citations

Abstract

We propose an original test of Lorentz invariance in the interaction between a particle spin and an electromagnetic field and report on a first measurement using ultracold neutrons. We used a high-sensitivity neutron electric dipole moment (nEDM) spectrometer and searched for a direction dependence of an nEDM signal leading to a modulation of its magnitude at periods of 12 and 24 hours. We constrain such a modulation to d12 < 10×10-25e cm and d24 < 14×10-25e cm at 95% C.L. The result translates into a limit on the energy scale for this type of Lorentz violation effect at the level of ϵLV > 1010 GeV.

Original languageEnglish
Article number51001
JournalEurophysics Letters
Volume92
Issue number5
DOIs
StatePublished - 20 Dec 2010
Externally publishedYes

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