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Title: Search for Lorentz and CPT Violation Effects in Muon Spin Precession

Abstract

The spin precession frequency of muons stored in the (g-2) storage ring has been analyzed for evidence of Lorentz and CPT violation. Two Lorentz and CPT violation signatures were searched for a nonzero {delta}{omega}{sub a}(={omega}{sub a}{sup {mu}{sup {+-}}{omega}{sub a}{sup {mu}{sup -}}) and a sidereal variation of {omega}{sub a}{sup {mu}{sup {+-}}}. No significant effect is found, and the following limits on the standard-model extension parameters are obtained: b{sub Z}=-(1.0{+-}1.1)x 10{sup -23} GeV; (m{sub {mu}}d{sub Z0}+H{sub XY})=(1.8{+-}6.0)x10{sup -23} GeV; and the 95% confidence level limits b{sub perpendicular}{sup {mu}{sup +}}< 1.4x10{sup -24} GeV and b{sub perpendicular}{sup {mu}{sup -}}<2.6x10{sup -24} GeV.

Authors:
; ; ; ; ; ; ; ; ; ; ; ;  [1]; ; ; ; ; ; ;  [2]
  1. Brookhaven National Laboratory, Upton, New York 11973 (United States)
  2. Department of Physics, University of Minnesota, Minneapolis, Minnesota 55455 (United States)
Publication Date:
OSTI Identifier:
21123634
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 100; Journal Issue: 9; Other Information: DOI: 10.1103/PhysRevLett.100.091602; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0031-9007
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CPT THEOREM; LORENTZ INVARIANCE; MUONS; SPIN; STANDARD MODEL; STORAGE RINGS

Citation Formats

Bennett, G W, Brown, H N, Bunce, G, Danby, G T, Larsen, R, Lee, Y Y, Meng, W, Mi, J, Morse, W M, Nikas, D, Prigl, R, Semertzidis, Y K, Warburton, D, Bousquet, B, Cushman, P, Duong, L, Giron, S, Kindem, J, Kronkvist, I, and Qian, T. Search for Lorentz and CPT Violation Effects in Muon Spin Precession. United States: N. p., 2008. Web. doi:10.1103/PHYSREVLETT.100.091602.
Bennett, G W, Brown, H N, Bunce, G, Danby, G T, Larsen, R, Lee, Y Y, Meng, W, Mi, J, Morse, W M, Nikas, D, Prigl, R, Semertzidis, Y K, Warburton, D, Bousquet, B, Cushman, P, Duong, L, Giron, S, Kindem, J, Kronkvist, I, & Qian, T. Search for Lorentz and CPT Violation Effects in Muon Spin Precession. United States. https://doi.org/10.1103/PHYSREVLETT.100.091602
Bennett, G W, Brown, H N, Bunce, G, Danby, G T, Larsen, R, Lee, Y Y, Meng, W, Mi, J, Morse, W M, Nikas, D, Prigl, R, Semertzidis, Y K, Warburton, D, Bousquet, B, Cushman, P, Duong, L, Giron, S, Kindem, J, Kronkvist, I, and Qian, T. 2008. "Search for Lorentz and CPT Violation Effects in Muon Spin Precession". United States. https://doi.org/10.1103/PHYSREVLETT.100.091602.
@article{osti_21123634,
title = {Search for Lorentz and CPT Violation Effects in Muon Spin Precession},
author = {Bennett, G W and Brown, H N and Bunce, G and Danby, G T and Larsen, R and Lee, Y Y and Meng, W and Mi, J and Morse, W M and Nikas, D and Prigl, R and Semertzidis, Y K and Warburton, D and Bousquet, B and Cushman, P and Duong, L and Giron, S and Kindem, J and Kronkvist, I and Qian, T},
abstractNote = {The spin precession frequency of muons stored in the (g-2) storage ring has been analyzed for evidence of Lorentz and CPT violation. Two Lorentz and CPT violation signatures were searched for a nonzero {delta}{omega}{sub a}(={omega}{sub a}{sup {mu}{sup {+-}}{omega}{sub a}{sup {mu}{sup -}}) and a sidereal variation of {omega}{sub a}{sup {mu}{sup {+-}}}. No significant effect is found, and the following limits on the standard-model extension parameters are obtained: b{sub Z}=-(1.0{+-}1.1)x 10{sup -23} GeV; (m{sub {mu}}d{sub Z0}+H{sub XY})=(1.8{+-}6.0)x10{sup -23} GeV; and the 95% confidence level limits b{sub perpendicular}{sup {mu}{sup +}}< 1.4x10{sup -24} GeV and b{sub perpendicular}{sup {mu}{sup -}}<2.6x10{sup -24} GeV.},
doi = {10.1103/PHYSREVLETT.100.091602},
url = {https://www.osti.gov/biblio/21123634}, journal = {Physical Review Letters},
issn = {0031-9007},
number = 9,
volume = 100,
place = {United States},
year = {Fri Mar 07 00:00:00 EST 2008},
month = {Fri Mar 07 00:00:00 EST 2008}
}