Observation of a new DsJ meson in B+-->D0D0K+ decays.
We report the observation of a new DsJ meson produced in B+-->D0DsJ-->D0D0K+. This state has a mass of M=2708+/-9(-10)(+11) MeV/c2, a width Gamma=108+/-23(-31)(+36) MeV/c2 and a 1- spin-parity. The statistical significance of this observation is 8.4 sigma. The results are based on an analysis of 449 x 10(6) BB events collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider.
Brodzicka
J
J
High Energy Accelerator Research Organization (KEK), Tsukuba.
Palka
H
H
Adachi
I
I
Aihara
H
H
Aulchenko
V
V
Bakich
A M
AM
Barberio
E
E
Bay
A
A
Bedny
I
I
Bitenc
U
U
Bondar
A
A
Bracko
M
M
Browder
T E
TE
Chang
M-C
MC
Chang
P
P
Chen
A
A
Chen
W T
WT
Cheon
B G
BG
Chiang
C-C
CC
Chistov
R
R
Cho
I-S
IS
Choi
S-K
SK
Choi
Y
Y
Dalseno
J
J
Danilov
M
M
Dash
M
M
Drutskoy
A
A
Eidelman
S
S
Gabyshev
N
N
Go
A
A
Gokhroo
G
G
Golob
B
B
Ha
H
H
Haba
J
J
Hara
T
T
Hayasaka
K
K
Hayashii
H
H
Hazumi
M
M
Heffernan
D
D
Hoshi
Y
Y
Hou
W-S
WS
Hyun
H J
HJ
Iijima
T
T
Ikado
K
K
Inami
K
K
Ishikawa
A
A
Ishino
H
H
Itoh
R
R
Iwasaki
M
M
Iwasaki
Y
Y
Joshi
N J
NJ
Kah
D H
DH
Kang
J H
JH
Kawai
H
H
Kawasaki
T
T
Kichimi
H
H
Kim
H O
HO
Kim
S K
SK
Kim
Y J
YJ
Kinoshita
K
K
Korpar
S
S
Krokovny
P
P
Kumar
R
R
Kuo
C C
CC
Kwon
Y-J
YJ
Lange
J S
JS
Lee
J S
JS
Lee
M J
MJ
Lee
S E
SE
Lesiak
T
T
Limosani
A
A
Liventsev
D
D
Mandl
F
F
McOnie
S
S
Medvedeva
T
T
Mitaroff
W
W
Miyabayashi
K
K
Miyake
H
H
Miyata
H
H
Mizuk
R
R
Mori
T
T
Nagasaka
Y
Y
Nakano
E
E
Nakao
M
M
Natkaniec
Z
Z
Nishida
S
S
Nitoh
O
O
Noguchi
S
S
Nozaki
T
T
Ogawa
S
S
Ohshima
T
T
Okuno
S
S
Olsen
S L
SL
Ozaki
H
H
Pakhlov
P
P
Pakhlova
G
G
Park
C W
CW
Park
H
H
Pestotnik
R
R
Piilonen
L E
LE
Rozanska
M
M
Sakai
Y
Y
Schneider
O
O
Seidl
R
R
Sekiya
A
A
Senyo
K
K
Sevior
M E
ME
Shapkin
M
M
Shen
C P
CP
Shibuya
H
H
Shiu
J-G
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Singh
J B
JB
Sokolov
A
A
Somov
A
A
Stanic
S
S
Staric
M
M
Sumiyoshi
T
T
Takasaki
F
F
Tamai
K
K
Tanaka
M
M
Taylor
G N
GN
Teramoto
Y
Y
Tikhomirov
I
I
Uehara
S
S
Ueno
K
K
Uglov
T
T
Unno
Y
Y
Uno
S
S
Urquijo
P
P
Varner
G
G
Vervink
K
K
Villa
S
S
Vinokurova
A
A
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
Won
E
E
Yabsley
B D
BD
Yamaguchi
A
A
Yamashita
Y
Y
Yamauchi
M
M
Yuan
C Z
CZ
Yusa
Y
Y
Zhang
C C
CC
Zhang
Z P
ZP
Zhilich
V
V
Zhulanov
V
V
Zupanc
A
A
Zwahlen
N
N