Search for CP violation in the decays D(s)+ --> KS0pi+ and D(s)+ --> KS0K+.
We have searched for CP violation in the charmed meson decays D((s))(+) --> K(S)(0)pi(+) and D((s))(+) --> K(S)(0)K(+) using 673 fb(-1) of data collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. No evidence for CP violation is observed. We report the most sensitive CP asymmetry measurements to date for these decays: A(CP)(D(+)-->K(S)(0)pi(+)) = (-0.71 +/- 0.19 +/- 0.20)%, A(CP)(D(s)(+) --> K(S)(0)pi(+)) = (+5.45 +/- 2.50 +/- 0.33)%, A(CP)(D(+) --> K(S)(0)K(+)) = (-0.16 +/- 0.58 +/- 0.25)%, and A(CP)(D(s)(+) --> K(S)(0)K(+)) = (+0.12 +/- 0.36 +/- 0.22)%, where the first uncertainties are statistical and the second are systematic.
Ko
B R
BR
Korea University, Seoul.
Won
E
E
Aihara
H
H
Aulchenko
V
V
Aushev
T
T
Bakich
A M
AM
Balagura
V
V
Barberio
E
E
Belous
K
K
Bhardwaj
V
V
Bischofberger
M
M
Bozek
A
A
Bracko
M
M
Browder
T E
TE
Chang
P
P
Chen
A
A
Chen
P
P
Cheon
B G
BG
Cho
I-S
IS
Choi
Y
Y
Dalseno
J
J
Das
A
A
Dolezal
Z
Z
Drutskoy
A
A
Eidelman
S
S
Goldenzweig
P
P
Golob
B
B
Ha
H
H
Hara
T
T
Hayashii
H
H
Horii
Y
Y
Hoshi
Y
Y
Hou
W-S
WS
Hsiung
Y B
YB
Hyun
H J
HJ
Iijima
T
T
Inami
K
K
Itoh
R
R
Iwabuchi
M
M
Iwasaki
M
M
Joshi
N J
NJ
Kah
D H
DH
Kang
J H
JH
Kapusta
P
P
Katayama
N
N
Kawasaki
T
T
Kim
H O
HO
Kim
Y J
YJ
Korpar
S
S
Krizan
P
P
Krokovny
P
P
Kuhr
T
T
Kumita
T
T
Kwon
Y-J
YJ
Kyeong
S-H
SH
Lange
J S
JS
Lee
M J
MJ
Lee
S-H
SH
Li
J
J
Liu
C
C
Liu
Y
Y
Liventsev
D
D
Louvot
R
R
Matyja
A
A
McOnie
S
S
Miyata
H
H
Mizuk
R
R
Nakano
E
E
Nakao
M
M
Natkaniec
Z
Z
Neubauer
S
S
Nishida
S
S
Nitoh
O
O
Ogawa
S
S
Ohshima
T
T
Okuno
S
S
Olsen
S L
SL
Ostrowicz
W
W
Pakhlov
P
P
Pakhlova
G
G
Palka
H
H
Park
C W
CW
Park
H
H
Park
H K
HK
Pestotnik
R
R
Petric
M
M
Piilonen
L E
LE
Röhrken
M
M
Ryu
S
S
Sahoo
H
H
Sakai
Y
Y
Schneider
O
O
Schwanda
C
C
Schwartz
A J
AJ
Seidl
R
R
Senyo
K
K
Sevior
M E
ME
Shapkin
M
M
Shebalin
V
V
Shen
C P
CP
Shiu
J-G
JG
Singh
J B
JB
Smerkol
P
P
Sokolov
A
A
Solovieva
E
E
Stanic
S
S
Staric
M
M
Sumiyoshi
T
T
Tanaka
M
M
Taylor
G N
GN
Teramoto
Y
Y
Trabelsi
K
K
Uehara
S
S
Unno
Y
Y
Uno
S
S
Varner
G
G
Varvell
K E
KE
Vervink
K
K
Wang
C H
CH
Wang
M-Z
MZ
Wang
P
P
Watanabe
M
M
Watanabe
Y
Y
Yabsley
B D
BD
Yamashita
Y
Y
Yamauchi
M
M
Zhang
Z P
ZP
Zhilich
V
V
Zivko
T
T
Zupanc
A
A
Zyukova
O
O