Search for Lorentz and CPT violation effects in Muon spin precession

Search for Lorentz and CPT violation effects in Muon spin precession

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 a(=omega a mu+ - omega a mu-) and a sidereal variation of omega a mu+/-). No significa...

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Veröffentlicht in:Physical review letters 2008-03, Vol.100 (9), p.091602-091602
Hauptverfasser: Bennett, G W, Bousquet, B, Brown, H N, Bunce, G, Carey, R M, Cushman, P, Danby, G T, Debevec, P T, Deile, M, Deng, H, Deninger, W, Dhawan, S K, Druzhinin, V P, Duong, L, Efstathiadis, E, Farley, F J M, Fedotovich, G V, Giron, S, Gray, F E, Grigoriev, D, Grosse-Perdekamp, M, Grossmann, A, Hare, M F, Hertzog, D W, Huang, X, Hughes, V W, Iwasaki, M, Jungmann, K, Kawall, D, Kawamura, M, Khazin, B I, Kindem, J, Krienen, F, Kronkvist, I, Lam, A, Larsen, R, Lee, Y Y, Logashenko, I, McNabb, R, Meng, W, Mi, J, Miller, J P, Mizumachi, Y, Morse, W M, Nikas, D, Onderwater, C J G, Orlov, Y, Ozben, C S, Paley, J M, Peng, Q, Polly, C C, Pretz, J, Prigl, R, zu Putlitz, G, Qian, T, Redin, S I, Rind, O, Roberts, B L, Ryskulov, N, Sedykh, S, Semertzidis, Y K, Shagin, P, Shatunov, Yu M, Sichtermann, E P, Solodov, E, Sossong, M, Steinmetz, A, Sulak, L R, Timmermans, C, Trofimov, A, Urner, D, von Walter, P, Warburton, D, Winn, D, Yamamoto, A, Zimmerman, D
Format: Artikel
Sprache:eng
Schlagworte:
CPT THEOREM
LORENTZ INVARIANCE
MUONS
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
SPIN
STANDARD MODEL
STORAGE RINGS
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Zusammenfassung: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 a(=omega a mu+ - omega a mu-) and a sidereal variation of omega a mu+/-). No significant effect is found, and the following limits on the standard-model extension parameters are obtained: bZ = -(1.0+/-1.1) x 10(-23) GeV; (m mu dZ0 + HXY)=(1.8+/-6.0) x 10(-23) GeV; and the 95% confidence level limits b perpendicular mu+
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.100.091602