Limit on the electron neutrino magnetic moment from the kuo-sheng reactor neutrino experiment.
A search of neutrino magnetic moment was carried out at the Kuo-Sheng Nuclear Power Station at a distance of 28 m from the 2.9 GW reactor core. With a high purity germanium detector of mass 1.06 kg surrounded by scintillating NaI(Tl) and CsI(Tl) crystals as anti-Compton detectors, a detection threshold of 5 keV and a background level of 1 kg(-1) keV(-1) day(-1) at 12-60 keV were achieved. Based on 4712 and 1250 h of reactor ON and OFF data, respectively, the limit on the neutrino magnetic moment of mu(nu;(e))<1.3x10(-10)mu(B) at 90% confidence level was derived. An indirect bound of the nu;(e) radiative lifetime of m(3)(nu)tau(nu)>2.8x10(18) eV(3) s can be inferred.
Li
H B
HB
Institute of Physics, Academia Sinica, Taipei 115, Taiwan and Department of Physics, National Taiwan University, Taipei 106, Taiwan.
Li
J
J
Wong
H T
HT
Chang
C Y
CY
Chen
C P
CP
Fang
J M
JM
Hu
C H
CH
Kuo
W S
WS
Lai
W P
WP
Lee
F S
FS
Lee
S C
SC
Lin
S T
ST
Luo
C S
CS
Liu
Y
Y
Qiu
J F
JF
Sheng
H Y
HY
Singh
V
V
Su
R F
RF
Teng
P K
PK
Tong
W S
WS
Wang
S C
SC
Xin
B
B
Yeh
T R
TR
Yue
Q
Q
Zhou
Z Y
ZY
Zhuang
B A
BA