TY  - JOUR
IS  - 20
N1  - © 2006 The American Physical Society
TI  - Observation of B+->Lambda(+)(c)Lambda K--(c)+ and B-0 ->Lambda(+)(c)Lambda K--(c)0 decays
AV  - public
Y1  - 2006/11/17/
VL  - 97
JF  - PHYS REV LETT
A1  - Gabyshev, N
A1  - Abe, K
A1  - Adachi, I
A1  - Aihara, H
A1  - Asano, Y
A1  - Aulchenko, V
A1  - Aushev, T
A1  - Bahinipati, S
A1  - Bakich, AM
A1  - Balagura, V
A1  - Barberio, E
A1  - Bartel, W
A1  - Bay, A
A1  - Bedny, I
A1  - Bitenc, U
A1  - Bizjak, I
A1  - Bondar, A
A1  - Bozek, A
A1  - Bracoko, M
A1  - Browder, TE
A1  - Chen, A
A1  - Chen, WT
A1  - Cheon, BG
A1  - Chistov, R
A1  - Choi, Y
A1  - Chuvikov, A
A1  - Cole, S
A1  - Dalseno, J
A1  - Danilov, M
A1  - Dash, M
A1  - Drutskoy, A
A1  - Eidelman, S
A1  - Garmash, A
A1  - Gershon, T
A1  - Gokhroo, G
A1  - Golob, B
A1  - Haba, J
A1  - Hayasaka, K
A1  - Hayashii, H
A1  - Hazumi, M
A1  - Hokuue, T
A1  - Hoshi, Y
A1  - Hou, S
A1  - Hou, WS
A1  - Hsiung, YB
A1  - Ikado, K
A1  - Imoto, A
A1  - Inami, K
A1  - Itoh, R
A1  - Iwasaki, M
A1  - Iwasaki, Y
A1  - Kang, JH
A1  - Kawasaki, T
A1  - Khan, HR
A1  - Kichimi, H
A1  - Kim, SM
A1  - Korpar, S
A1  - Krokovny, P
A1  - Kulasiri, R
A1  - Kuo, CC
A1  - Kuzmin, A
A1  - Kwon, YJ
A1  - Leder, G
A1  - Lesiak, T
A1  - Lin, SW
A1  - Liventsev, D
A1  - Majumder, G
A1  - Matsumoto, T
A1  - Mitaroff, W
A1  - Miyabayashi, K
A1  - Miyata, H
A1  - Miyazaki, Y
A1  - Mizuk, R
A1  - Nakano, E
A1  - Nakao, M
A1  - Natkaniec, Z
A1  - Nishida, S
A1  - Ogawa, S
A1  - Ohshima, T
A1  - Okabe, T
A1  - Okuno, S
A1  - Olsen, SL
A1  - Ozaki, H
A1  - Palka, H
A1  - Park, CW
A1  - Park, KS
A1  - Pestotnik, R
A1  - Piilonen, LE
A1  - Sakai, Y
A1  - Sato, N
A1  - Satoyama, N
A1  - Schietinger, T
A1  - Schneider, O
A1  - Schwanda, C
A1  - Seidl, R
A1  - Senyo, K
A1  - Sevior, ME
A1  - Shapkin, M
A1  - Shibuya, H
A1  - Somov, A
A1  - Soni, N
A1  - Stamen, R
A1  - Stanic, S
A1  - Staric, M
A1  - Sumiyoshi, T
A1  - Tamai, K
A1  - Tamura, N
A1  - Tanaka, M
A1  - Taylor, GN
A1  - Teramoto, Y
A1  - Tian, XC
A1  - Tsukamoto, T
A1  - Uehara, S
A1  - Uglov, T
A1  - Ueno, K
A1  - Uno, S
A1  - Urquijo, P
A1  - Varner, G
A1  - Varvell, KE
A1  - Villa, S
A1  - Wang, CC
A1  - Wang, CH
A1  - Watanabe, Y
A1  - Won, E
A1  - Xie, QL
A1  - Yamaguchi, A
A1  - Yamauchi, M
A1  - Ying, J
A1  - Zhang, ZP
A1  - Belle Collaboration
KW  - BARYON-ANTIBARYON PAIRS
KW  -  EXCLUSIVE DECAYS
KW  -  SEARCH
KW  -  DETECTOR
KW  -  MESONS
N2  - We report the first measurements of the doubly charmed baryonic B decays B ->Lambda(+)(c)Lambda K--(c). The B+->Lambda(+)(c)Lambda K--(c)+ decay is observed with a branching fraction of (6.5(-0.9)(+1.0)+/- 1.1 +/- 3.4)x10(-4) and a statistical significance of 15.4 sigma. The B-0 ->Lambda(+)(c)Lambda K--(c)0 decay is observed with a branching fraction of (7.9(-2.3)(+2.9)+/- 1.2 +/- 4.1)x10(-4) and a statistical significance of 6.6 sigma. The branching fraction errors are statistical, systematic, and the error resulting from the uncertainty of the Lambda(+)(c)-> pK(-)pi(+) decay branching fraction. The analysis is based on 357 fb(-1) of data accumulated at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider.
ID  - discovery1308523
PB  - AMERICAN PHYSICAL SOC
UR  - http://dx.doi.org/10.1103/PhysRevLett..97.202003
SN  - 0031-9007
ER  -