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Evidence for B¯s0→Λc+Λ¯π

Using 121.4 fb−1 of data collected with the Belle detector at the ϒ(5S) resonance at the KEKB asymmetric-energy e+e− collider, we report evidence for the B¯s0→Λc+Λ¯π− decay mode with a measured branching fraction (3.6±1.1[stat.]−0.5+0.3[syst.]±0.9[Λc+]±0.7[NB¯s0])×10−4 and a significance of 4.4 stan...

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Bibliographic Details
Published in:Physics letters. B 2013-10, Vol.726 (1-3), p.206-210
Main Authors: Solovieva, E., Chistov, R., Adachi, I., Bakich, A.M., Bhardwaj, V., Bhuyan, B., Bischofberger, M., Bondar, A., Bozek, A., Bračko, M., Cheon, B.G., Chilikin, K., Cho, K., Chobanova, V., Choi, Y., Cinabro, D., Danilov, M., Drásal, Z., Drutskoy, A., Eidelman, S., Fast, J.E., Gaur, V., Ganguly, S., Gillard, R., Haba, J., Hoshi, Y., Hsiung, Y.B., Huschle, M., Hyun, H.J., Iijima, T., Ishikawa, A., Itoh, R., Iwasaki, Y., Kah, D.H., Kawasaki, T., Kim, D.Y., Kim, H.O., Kim, M.J., Kim, Y.J., Klucar, J., Ko, B.R., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kuhr, T., Kumar, R., Kumita, T., Kuzmin, A., Kwon, Y.-J., Lange, J.S., Li, Y., Liventsev, D., Miyata, H., Mizuk, R., Mohanty, G.B., Nakano, E., Nisar, N.K., Nitoh, O., Ogawa, S., Okuno, S., Park, H.K., Petrič, M., Piilonen, L.E., Ritter, M., Rostomyan, A., Sahoo, H., Saito, T., Sakai, Y., Sandilya, S., Santel, D., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Sevior, M.E., Shibata, T.-A., Shiu, J.-G., Shwartz, B., Sibidanov, A., Singh, J.B., Smerkol, P., Sohn, Y.-S., Sokolov, A., Starič, M., Sumihama, M., Tamponi, U., Tanaka, S., Tanida, K., Tsuboyama, T., Uehara, S., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Varner, G., Vinokurova, A., Wang, C.H., Yashchenko, S., Zhilich, V.
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Language:English
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Summary:Using 121.4 fb−1 of data collected with the Belle detector at the ϒ(5S) resonance at the KEKB asymmetric-energy e+e− collider, we report evidence for the B¯s0→Λc+Λ¯π− decay mode with a measured branching fraction (3.6±1.1[stat.]−0.5+0.3[syst.]±0.9[Λc+]±0.7[NB¯s0])×10−4 and a significance of 4.4 standard deviations. This is the first evidence for a baryonic Bs0 decay.
ISSN:0370-2693
1873-2445
DOI:10.1016/j.physletb.2013.08.057