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 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+ <1.4 x 10(-24) GeV and b perpendicular mu- <2.6 x 10(-24) GeV.
Bennett
G W
GW
Brookhaven National Laboratory, Upton, NY 11973, USA.
Bousquet
B
B
Brown
H N
HN
Bunce
G
G
Carey
R M
RM
Cushman
P
P
Danby
G T
GT
Debevec
P T
PT
Deile
M
M
Deng
H
H
Deninger
W
W
Dhawan
S K
SK
Druzhinin
V P
VP
Duong
L
L
Efstathiadis
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E
Farley
F J M
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Fedotovich
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GV
Giron
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Gray
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Grigoriev
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D
Grosse-Perdekamp
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M
Grossmann
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Hare
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Hertzog
D W
DW
Huang
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Hughes
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Iwasaki
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Jungmann
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Kawall
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D
Kawamura
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M
Khazin
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BI
Kindem
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J
Krienen
F
F
Kronkvist
I
I
Lam
A
A
Larsen
R
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Lee
Y Y
YY
Logashenko
I
I
McNabb
R
R
Meng
W
W
Mi
J
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Miller
J P
JP
Mizumachi
Y
Y
Morse
W M
WM
Nikas
D
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Onderwater
C J G
CJ
Orlov
Y
Y
Ozben
C S
CS
Paley
J M
JM
Peng
Q
Q
Polly
C C
CC
Pretz
J
J
Prigl
R
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zu Putlitz
G
G
Qian
T
T
Redin
S I
SI
Rind
O
O
Roberts
B L
BL
Ryskulov
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N
Sedykh
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S
Semertzidis
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Shagin
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Shatunov
Yu M
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Sichtermann
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EP
Solodov
E
E
Sossong
M
M
Steinmetz
A
A
Sulak
L R
LR
Timmermans
C
C
Trofimov
A
A
Urner
D
D
von Walter
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P
Warburton
D
D
Winn
D
D
Yamamoto
A
A
Zimmerman
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D