Evidence for neutral B meson decays to omegaK*0.
We present the results of a study of the charmless vector-vector decay B0-->omegaK*0 with 657 x 10(6) BB pairs collected with the Belle detector at the KEKB e+e- collider. We measure the branching fraction to be B(B0-->omegaK*0) = [1.8+/-0.7(stat)+/-0.3(syst)]x 10(-6) with 3.0sigma significance. We also perform a helicity analysis of the omega and K*0 vector mesons, and obtain the longitudinal polarization fraction fL(B0-->omegaK*0) = 0.56+/-0.29(stat) -0.08(+0.18)(syst). Finally, we measure a large nonresonant branching fraction B[B0-->omegaK+pi(-);M Kpi in(0.755,1.250) GeV/c2] = [5.1+/-0.7(stat)+/-0.7(syst)]x 10(-6) with a significance of 9.5sigma.
Goldenzweig
P
P
University of Cincinnati, Cincinnati, Ohio 45221, USA.
Schwartz
A J
AJ
Adachi
I
I
Aihara
H
H
Arinstein
K
K
Aulchenko
V
V
Aushev
T
T
Bahinipati
S
S
Bakich
A M
AM
Bay
A
A
Bedny
I
I
Bhardwaj
V
V
Bitenc
U
U
Bondar
A
A
Bozek
A
A
Bracko
M
M
Browder
T E
TE
Chang
P
P
Chao
Y
Y
Chen
A
A
Chen
K-F
KF
Cheon
B G
BG
Chiang
C-C
CC
Chistov
R
R
Cho
I-S
IS
Choi
Y
Y
Dalseno
J
J
Dash
M
M
Drutskoy
A
A
Eidelman
S
S
Golob
B
B
Ha
H
H
Hayasaka
K
K
Hayashii
H
H
Hazumi
M
M
Heffernan
D
D
Hoshi
Y
Y
Hou
W-S
WS
Hsiung
Y B
YB
Hyun
H J
HJ
Iijima
T
T
Inami
K
K
Ishikawa
A
A
Ishino
H
H
Iwasaki
M
M
Kah
D H
DH
Kang
J H
JH
Kawasaki
T
T
Kichimi
H
H
Kim
H J
HJ
Kim
S K
SK
Kim
Y I
YI
Kim
Y J
YJ
Kinoshita
K
K
Korpar
S
S
Krizan
P
P
Krokovny
P
P
Kumar
R
R
Kuzmin
A
A
Kwon
Y-J
YJ
Kyeong
S-H
SH
Lange
J S
JS
Lee
J S
JS
Lee
M J
MJ
Lee
S E
SE
Lesiak
T
T
Li
J
J
Limosani
A
A
Lin
S-W
SW
Liu
C
C
Liu
Y
Y
MacNaughton
J
J
Mandl
F
F
McOnie
S
S
Miyabayashi
K
K
Miyata
H
H
Miyazaki
Y
Y
Mizuk
R
R
Nagamine
T
T
Nakano
E
E
Nakao
M
M
Nakazawa
H
H
Nishida
S
S
Nitoh
O
O
Ogawa
S
S
Ohshima
T
T
Okuno
S
S
Olsen
S L
SL
Ostrowicz
W
W
Ozaki
H
H
Pakhlov
P
P
Pakhlova
G
G
Palka
H
H
Park
C W
CW
Park
H
H
Park
H K
HK
Peak
L S
LS
Pestotnik
R
R
Piilonen
L E
LE
Sahoo
H
H
Sakai
Y
Y
Schneider
O
O
Schümann
J
J
Schwanda
C
C
Seidl
R
R
Sekiya
A
A
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
Somov
A
A
Stanic
S
S
Staric
M
M
Sumisawa
K
K
Sumiyoshi
T
T
Suzuki
S
S
Tamura
N
N
Tanaka
M
M
Teramoto
Y
Y
Tikhomirov
I
I
Trabelsi
K
K
Uehara
S
S
Uglov
T
T
Unno
Y
Y
Uno
S
S
Urquijo
P
P
Usov
Y
Y
Varner
G
G
Varvell
K E
KE
Vervink
K
K
Wang
C C
CC
Wang
C H
CH
Wang
M-Z
MZ
Wang
P
P
Wang
X L
XL
Watanabe
Y
Y
Wedd
R
R
Wicht
J
J
Won
E
E
Yabsley
B D
BD
Yamashita
Y
Y
Yamauchi
M
M
Zhang
C C
CC
Zhang
Z P
ZP
Zhulanov
V
V
Zivko
T
T
Zupanc
A
A
Zyukova
O
O