title: Measurement of the Decay B_(s);(0)-->D_(s);(-)pi;(+) and Evidence for B_(s);(0)-->D_(s);(-/+)K;(+/-) in e;(+)e;(-) Annihilation at sqrt[s] approximately 10.87 GeV.
abstract: We have studied B_(s);(0)-->D_(s);(-)pi;(+) and B_(s);(0)-->D_(s);(-/+)K;(+/-) decays using 23.6 fb;(-1) of data collected at the Upsilon(5S) resonance with the Belle detector at the KEKB e;(+)e;(-) collider. This highly pure B_(s);(0)-->D_(s);(-)pi;(+) sample is used to measure the branching fraction, B(B_(s);(0)-->D_(s);(-)pi;(+))=[3.67_(-0.33);(+0.35)(stat)-0.42+0.43(syst)+/-0.49(f_(s))]x10;(-3) (f_(s)=N_(B_(s);((*))B[over ]_(s);((*)))/N_(bb[over ])) and the fractions of B_(s);(0) event types at the Upsilon(5S) energy, in particular N_(B_(s);(*)B[over ]_(s);(*))/N_(B_(s);((*))B[over ]_(s);((*)))=(90.1_(-4.0);(+3.8)+/-0.2)%. We also determine the masses M(B_(s);(0))=(5364.4+/-1.3+/-0.7) MeV/c;(2) and M(B_(s);(*))=(5416.4+/-0.4+/-0.5) MeV/c;(2). In addition, we observe B_(s);(0)-->D_(s);(-/+)K;(+/-) decays with a significance of 3.5sigma and measure B(B_(s);(0)-->D_(s);(-/+)K;(+/-))=[2.4_(-1.0);(+1.2)(stat)+/-0.3(syst)+/-0.3(f_(s))]x10;(-4).
authors.affiliation: Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne.
authors.forename: R
authors.initials: R
authors.lastname: Louvot
authors.forename: J
authors.initials: J
authors.lastname: Wicht
authors.forename: O
authors.initials: O
authors.lastname: Schneider
authors.forename: I
authors.initials: I
authors.lastname: Adachi
authors.forename: H
authors.initials: H
authors.lastname: Aihara
authors.forename: K
authors.initials: K
authors.lastname: Arinstein
authors.forename: V
authors.initials: V
authors.lastname: Aulchenko
authors.forename: T
authors.initials: T
authors.lastname: Aushev
authors.forename: A M
authors.initials: AM
authors.lastname: Bakich
authors.forename: V
authors.initials: V
authors.lastname: Balagura
authors.forename: A
authors.initials: A
authors.lastname: Bay
authors.forename: V
authors.initials: V
authors.lastname: Bhardwaj
authors.forename: U
authors.initials: U
authors.lastname: Bitenc
authors.forename: A
authors.initials: A
authors.lastname: Bondar
authors.forename: A
authors.initials: A
authors.lastname: Bozek
authors.forename: M
authors.initials: M
authors.lastname: Bracko
authors.forename: T E
authors.initials: TE
authors.lastname: Browder
authors.forename: A
authors.initials: A
authors.lastname: Chen
authors.forename: B G
authors.initials: BG
authors.lastname: Cheon
authors.forename: R
authors.initials: R
authors.lastname: Chistov
authors.forename: I-S
authors.initials: IS
authors.lastname: Cho
authors.forename: Y
authors.initials: Y
authors.lastname: Choi
authors.forename: J
authors.initials: J
authors.lastname: Dalseno
authors.forename: M
authors.initials: M
authors.lastname: Danilov
authors.forename: M
authors.initials: M
authors.lastname: Dash
authors.forename: A
authors.initials: A
authors.lastname: Drutskoy
authors.forename: W
authors.initials: W
authors.lastname: Dungel
authors.forename: S
authors.initials: S
authors.lastname: Eidelman
authors.forename: N
authors.initials: N
authors.lastname: Gabyshev
authors.forename: P
authors.initials: P
authors.lastname: Goldenzweig
authors.forename: B
authors.initials: B
authors.lastname: Golob
authors.forename: H
authors.initials: H
authors.lastname: Ha
authors.forename: J
authors.initials: J
authors.lastname: Haba
authors.forename: K
authors.initials: K
authors.lastname: Hayasaka
authors.forename: H
authors.initials: H
authors.lastname: Hayashii
authors.forename: M
authors.initials: M
authors.lastname: Hazumi
authors.forename: Y
authors.initials: Y
authors.lastname: Hoshi
authors.forename: W-S
authors.initials: WS
authors.lastname: Hou
authors.forename: H J
authors.initials: HJ
authors.lastname: Hyun
authors.forename: T
authors.initials: T
authors.lastname: Iijima
authors.forename: K
authors.initials: K
authors.lastname: Inami
authors.forename: A
authors.initials: A
authors.lastname: Ishikawa
authors.forename: H
authors.initials: H
authors.lastname: Ishino
authors.forename: R
authors.initials: R
authors.lastname: Itoh
authors.forename: M
authors.initials: M
authors.lastname: Iwasaki
authors.forename: N J
authors.initials: NJ
authors.lastname: Joshi
authors.forename: D H
authors.initials: DH
authors.lastname: Kah
authors.forename: J H
authors.initials: JH
authors.lastname: Kang
authors.forename: N
authors.initials: N
authors.lastname: Katayama
authors.forename: H
authors.initials: H
authors.lastname: Kawai
authors.forename: T
authors.initials: T
authors.lastname: Kawasaki
authors.forename: H
authors.initials: H
authors.lastname: Kichimi
authors.forename: S K
authors.initials: SK
authors.lastname: Kim
authors.forename: Y I
authors.initials: YI
authors.lastname: Kim
authors.forename: Y J
authors.initials: YJ
authors.lastname: Kim
authors.forename: K
authors.initials: K
authors.lastname: Kinoshita
authors.forename: S
authors.initials: S
authors.lastname: Korpar
authors.forename: P
authors.initials: P
authors.lastname: Krizan
authors.forename: P
authors.initials: P
authors.lastname: Krokovny
authors.forename: R
authors.initials: R
authors.lastname: Kumar
authors.forename: A
authors.initials: A
authors.lastname: Kuzmin
authors.forename: Y-J
authors.initials: YJ
authors.lastname: Kwon
authors.forename: S-H
authors.initials: SH
authors.lastname: Kyeong
authors.forename: J S
authors.initials: JS
authors.lastname: Lange
authors.forename: J S
authors.initials: JS
authors.lastname: Lee
authors.forename: M J
authors.initials: MJ
authors.lastname: Lee
authors.forename: S E
authors.initials: SE
authors.lastname: Lee
authors.forename: T
authors.initials: T
authors.lastname: Lesiak
authors.forename: J
authors.initials: J
authors.lastname: Li
authors.forename: A
authors.initials: A
authors.lastname: Limosani
authors.forename: S-W
authors.initials: SW
authors.lastname: Lin
authors.forename: D
authors.initials: D
authors.lastname: Liventsev
authors.forename: F
authors.initials: F
authors.lastname: Mandl
authors.forename: A
authors.initials: A
authors.lastname: Matyja
authors.forename: S
authors.initials: S
authors.lastname: McOnie
authors.forename: T
authors.initials: T
authors.lastname: Medvedeva
authors.forename: K
authors.initials: K
authors.lastname: Miyabayashi
authors.forename: H
authors.initials: H
authors.lastname: Miyake
authors.forename: H
authors.initials: H
authors.lastname: Miyata
authors.forename: Y
authors.initials: Y
authors.lastname: Miyazaki
authors.forename: R
authors.initials: R
authors.lastname: Mizuk
authors.forename: T
authors.initials: T
authors.lastname: Mori
authors.forename: E
authors.initials: E
authors.lastname: Nakano
authors.forename: M
authors.initials: M
authors.lastname: Nakao
authors.forename: S
authors.initials: S
authors.lastname: Nishida
authors.forename: O
authors.initials: O
authors.lastname: Nitoh
authors.forename: S
authors.initials: S
authors.lastname: Ogawa
authors.forename: T
authors.initials: T
authors.lastname: Ohshima
authors.forename: S
authors.initials: S
authors.lastname: Okuno
authors.forename: H
authors.initials: H
authors.lastname: Ozaki
authors.forename: G
authors.initials: G
authors.lastname: Pakhlova
authors.forename: C W
authors.initials: CW
authors.lastname: Park
authors.forename: H K
authors.initials: HK
authors.lastname: Park
authors.forename: R
authors.initials: R
authors.lastname: Pestotnik
authors.forename: L E
authors.initials: LE
authors.lastname: Piilonen
authors.forename: H
authors.initials: H
authors.lastname: Sahoo
authors.forename: Y
authors.initials: Y
authors.lastname: Sakai
authors.forename: J
authors.initials: J
authors.lastname: Schümann
authors.forename: A J
authors.initials: AJ
authors.lastname: Schwartz
authors.forename: A
authors.initials: A
authors.lastname: Sekiya
authors.forename: K
authors.initials: K
authors.lastname: Senyo
authors.forename: M E
authors.initials: ME
authors.lastname: Sevior
authors.forename: M
authors.initials: M
authors.lastname: Shapkin
authors.forename: J-G
authors.initials: JG
authors.lastname: Shiu
authors.forename: J B
authors.initials: JB
authors.lastname: Singh
authors.forename: A
authors.initials: A
authors.lastname: Somov
authors.forename: S
authors.initials: S
authors.lastname: Stanic
authors.forename: M
authors.initials: M
authors.lastname: Staric
authors.forename: K
authors.initials: K
authors.lastname: Sumisawa
authors.forename: T
authors.initials: T
authors.lastname: Sumiyoshi
authors.forename: M
authors.initials: M
authors.lastname: Tanaka
authors.forename: G N
authors.initials: GN
authors.lastname: Taylor
authors.forename: Y
authors.initials: Y
authors.lastname: Teramoto
authors.forename: I
authors.initials: I
authors.lastname: Tikhomirov
authors.forename: K
authors.initials: K
authors.lastname: Trabelsi
authors.forename: S
authors.initials: S
authors.lastname: Uehara
authors.forename: T
authors.initials: T
authors.lastname: Uglov
authors.forename: Y
authors.initials: Y
authors.lastname: Unno
authors.forename: S
authors.initials: S
authors.lastname: Uno
authors.forename: Y
authors.initials: Y
authors.lastname: Usov
authors.forename: G
authors.initials: G
authors.lastname: Varner
authors.forename: K
authors.initials: K
authors.lastname: Vervink
authors.forename: C C
authors.initials: CC
authors.lastname: Wang
authors.forename: C H
authors.initials: CH
authors.lastname: Wang
authors.forename: P
authors.initials: P
authors.lastname: Wang
authors.forename: X L
authors.initials: XL
authors.lastname: Wang
authors.forename: Y
authors.initials: Y
authors.lastname: Watanabe
authors.forename: R
authors.initials: R
authors.lastname: Wedd
authors.forename: E
authors.initials: E
authors.lastname: Won
authors.forename: B D
authors.initials: BD
authors.lastname: Yabsley
authors.forename: Y
authors.initials: Y
authors.lastname: Yamashita
authors.forename: M
authors.initials: M
authors.lastname: Yamauchi
authors.forename: Z P
authors.initials: ZP
authors.lastname: Zhang
authors.forename: V
authors.initials: V
authors.lastname: Zhilich
authors.forename: V
authors.initials: V
authors.lastname: Zhulanov
authors.forename: T
authors.initials: T
authors.lastname: Zivko
authors.forename: A
authors.initials: A
authors.lastname: Zupanc
authors.forename: N
authors.initials: N
authors.lastname: Zwahlen
authors.forename: O
authors.initials: O
authors.lastname: Zyukova