Observation of the decay (B)over-bar(0) -&gt; D-s(+) Lambda (p)over-bar

Medvedeva, T.; Chistov, R.; Abe, K.; Abe, K.; Adachi, I.; Aihara, H.; Anipko, D.; Aushev, T.; Bakich, Am; Balagura,; Barberio, E.; Bay, A.; Belous, K.; Bitenc, U.; Bizjak, I.; Bondar, A.; Bozek, A.; Bracko, M.; Brodzicka, J.; Browder, Te; Chang, Mc; Chang, P.; Chao, Y.; Chen, A.; Chen, Wt; Cheon, Bg; Choi, Y.; Choi, Yk; Cole, S.; Dalseno, J.; Danilov, M.; Dash, M.; Drutskoy, A.; Eidelman, S.; Fratina, S.; Gabyshev, N.; Garmash, A.; Gershon, T.; Go, A.; Golob, B.; Ha, H.; Haba, J.; Hayasaka, K.; Hayashii, H.; Hazumi, M.; Heffernan, D.; Hokuue, T.; Hoshi, Y.; Hou, S.; Hou, Ws; Iijima, T.; Imoto, A.; Inami, K.; Ishikawa, A.; Itoh, R.; Iwasaki, M.; Iwasaki, Y.; Kang, Jh; Kawai, H.; Kawasaki, T.; Khan, Hr; Kichimi, H.; Kim, Yj; Krokovny, P.; Kulasiri, R.; Kumar, R.; Kuo, Cc; Kwon, Yj; Leder, G.; Lee, Mj; Lee, Se; Lesiak, T.; Lin, Sw; Liventsev, D.; Majumder, G.; Mandl, F.; Matsumoto, T.; McOnie, S.; Mitaroff, W.; Miyake, H.; Miyata, H.; Miyazaki, Y.; Mizuk, R.; Moloney, Gr; Mori, T.; Nagasaka, Y.; Nakao, M.; Natkaniec, Z.; Nishida, S.; Nitoh, O.; Ogawa, S.; Ohshima, T.; Okuno, S.; Onuki, Y.; Ozaki, H.; Pakhlov, P.; Pakhlova, G.; Park, H.; Park, Ks; Peak, Ls; Pestotnik, R.; Piilonen, Le; Sahoo, H.; Sakai, Y.; Satoyama, N.; Schietinger, T.; Schneider, O.; Seidl, R.; Senyo, K.; Sevior, Me; Shapkin, M.; Shibuya, H.; Singh, Jb; Sokolov, A.; Somov, A.; Soni, N.; Stanic, S.; Staric, M.; Stoeck, H.; Sumiyoshi, T.; Takasaki, F.; Tamai, K.; Tanaka, M.; Taylor, Gn; Teramoto, Y.; Tian, Xc; Tikhomirov, I.; Tsuboyama, T.; Tsukamoto, T.; Uehara, S.; Uglov, T.; Ueno, K.; Unno, Y.; Uno, S.; Urquijo, P.; Usov, Y.; Varner, G.; Villa, S.; Wang, Cc; Wang, Ch; Watanabe, Y.; Won, E.; Xie, Ql; Yamaguchi, A.; Yamashita, Y.; Yamauchi, M.; Zhang, Zp; Zupanc, A.; Collaboration, Belle

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Observation of the decay (B)over-bar(0) -> D-s(+) Lambda (p)over-bar

Journal article published in 2007 by T. Medvedeva, R. Chistov, K. Abe, K. Abe, I. Adachi, H. Aihara, D. Anipko, T. Aushev, Am Bakich, Balagura, E. Barberio, A. Bay, K. Belous, U. Bitenc, I. Bizjak and other authors.

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Abstract

We report the first observation of the decay (B) over bar (0)-> D-s(+)Lambda(p) over bar with a statistical significance of 6.6 sigma. We measure B((B) over bar (0)-> D-s(+)Lambda(p) over bar)=(2.9 +/- 0.7 +/- 0.5 +/- 0.4)x10(-5), where the first error is statistical, the second is systematic, and the third error comes from the uncertainty in B(D-s(+)->phi pi(+)). The data used for this analysis was accumulated at the Upsilon(4S) resonance, using the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The integrated luminosity of the data sample is 414 fb(-1), corresponding to 449x10(6) B (B) over bar pairs.

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