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Observation of a narrow charmoniumlike state in exclusive B+/---K+/-pi+pi-J/psi decays

Authors :
S-K, Choi
S L, Olsen
K, Abe
T, Abe
I, Adachi
Byoung Sup, Ahn
H, Aihara
K, Akai
M, Akatsu
M, Akemoto
Y, Asano
T, Aso
V, Aulchenko
T, Aushev
A M, Bakich
Y, Ban
S, Banerjee
A, Bondar
A, Bozek
M, Bracko
J, Brodzicka
T E, Browder
P, Chang
Y, Chao
K-F, Chen
B G, Cheon
R, Chistov
Y, Choi
Y K, Choi
M, Danilov
L Y, Dong
A, Drutskoy
S, Eidelman
V, Eiges
J, Flanagan
C, Fukunaga
K, Furukawa
N, Gabyshev
T, Gershon
B, Golob
H, Guler
R, Guo
C, Hagner
F, Handa
T, Hara
N C, Hastings
H, Hayashii
M, Hazumi
L, Hinz
Y, Hoshi
W-S, Hou
Y B, Hsiung
H-C, Huang
T, Iijima
K, Inami
A, Ishikawa
R, Itoh
M, Iwasaki
Y, Iwasaki
J H, Kang
S U, Kataoka
N, Katayama
H, Kawai
T, Kawasaki
H, Kichimi
E, Kikutani
H J, Kim
Hyunwoo, Kim
J H, Kim
S K, Kim
K, Kinoshita
H, Koiso
P, Koppenburg
S, Korpar
P, Krizan
P, Krokovny
S, Kumar
A, Kuzmin
J S, Lange
G, Leder
S H, Lee
T, Lesiak
S-W, Lin
D, Liventsev
J, MacNaughton
G, Majumder
F, Mandl
D, Marlow
T, Matsumoto
S, Michizono
T, Mimashi
W, Mitaroff
K, Miyabayashi
H, Miyake
D, Mohapatra
G R, Moloney
T, Nagamine
Y, Nagasaka
T, Nakadaira
T T, Nakamura
M, Nakao
Z, Natkaniec
S, Nishida
O, Nitoh
T, Nozaki
S, Ogawa
Y, Ogawa
K, Ohmi
Y, Ohnishi
T, Ohshima
N, Ohuchi
K, Oide
T, Okabe
S, Okuno
W, Ostrowicz
H, Ozaki
H, Palka
H, Park
N, Parslow
L E, Piilonen
H, Sagawa
S, Saitoh
Y, Sakai
T R, Sarangi
M, Satapathy
A, Satpathy
O, Schneider
A J, Schwartz
S, Semenov
K, Senyo
R, Seuster
M E, Sevior
H, Shibuya
T, Shidara
B, Shwartz
V, Sidorov
N, Soni
S, Stanic
M, Staric
A, Sugiyama
T, Sumiyoshi
S, Suzuki
F, Takasaki
K, Tamai
N, Tamura
M, Tanaka
M, Tawada
G N, Taylor
Y, Teramoto
T, Tomura
K, Trabelsi
T, Tsukamoto
S, Uehara
K, Ueno
Y, Unno
S, Uno
G, Varner
K E, Varvell
C C, Wang
C H, Wang
J G, Wang
Y, Watanabe
E, Won
B D, Yabsley
Y, Yamada
A, Yamaguchi
Y, Yamashita
H, Yanai
Heyoung, Yang
J, Ying
M, Yoshida
C C, Zhang
Z P, Zhang
D, Zontar
Source :
Physical review letters. 91(26 Pt 1)
Publication Year :
2003

Abstract

We report the observation of a narrow charmoniumlike state produced in the exclusive decay process B+/---K+/-pi(+)pi(-)J/psi. This state, which decays into pi(+)pi(-)J/psi, has a mass of 3872.0+/-0.6(stat)+/-0.5(syst) MeV, a value that is very near the M(D0)+M(D(*0)) mass threshold. The results are based on an analysis of 152M B-Bmacr; events collected at the Upsilon(4S) resonance in the Belle detector at the KEKB collider. The signal has a statistical significance that is in excess of 10sigma.

Details

ISSN :
00319007
Volume :
91
Issue :
26 Pt 1
Database :
OpenAIRE
Journal :
Physical review letters
Accession number :
edsair.pmid..........cb282591e33f9fc9408b96d7f252291e

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