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Observation of B- -> (p)over-bar Lambda D-0 at Belleopen access

Authors
Chen, P[Chen, P.]Wang, MZ[Wang, M. -Z.]Adachi, I[Adachi, I.]Aihara, H[Aihara, H.]Asner, DM[Asner, D. M.]Aulchenko, V[Aulchenko, V.]Aushev, T[Aushev, T.]Bakich, AM[Bakich, A. M.]Barberio, E[Barberio, E.]Belous, K[Belous, K.]Bhuyan, B[Bhuyan, B.]Bozek, A[Bozek, A.]Bracko, M[Bracko, M.]Browder, TE[Browder, T. E.]Chang, MC[Chang, M. -C.]Chang, P[Chang, P.]Chao, Y[Chao, Y.]Chen, A[Chen, A.]Cheon, BG[Cheon, B. G.]Cho, IS[Cho, I. -S.]Cho, K[Cho, K.]Choi, Y[Choi, Y.]Dalseno, J[Dalseno, J.]Danilov, M[Danilov, M.]Dolezal, Z[Dolezal, Z.]Drasal, Z[Drasal, Z.]Eidelman, S[Eidelman, S.]Fast, JE[Fast, J. E.]Feindt, M[Feindt, M.]Gaur, V[Gaur, V.]Goh, YM[Goh, Y. M.]Haba, J[Haba, J.]Hara, T[Hara, T.]Hayasaka, K[Hayasaka, K.]Hayashii, H[Hayashii, H.]Hoshi, Y[Hoshi, Y.]Hou, WS[Hou, W. -S.]Hsiung, YB[Hsiung, Y. B.]Hyun, HJ[Hyun, H. J.]Ishikawa, A[Ishikawa, A.]Itoh, R[Itoh, R.]Iwabuchi, M[Iwabuchi, M.]Iwasaki, Y[Iwasaki, Y.]Iwashita, T[Iwashita, T.]Julius, T[Julius, T.]Kang, JH[Kang, J. H.]Kapusta, P[Kapusta, P.]Katayama, N[Katayama, N.]Kawasaki, T[Kawasaki, T.]Kichimi, H[Kichimi, H.]Kiesling, C[Kiesling, C.]Kim, HO[Kim, H. O.]Kim, JB[Kim, J. B.]Kim, JH[Kim, J. H.]Kim, KT[Kim, K. T.]Kim, MJ[Kim, M. J.]Kim, YJ[Kim, Y. J.]Kinoshita, K[Kinoshita, K.]Ko, BR[Ko, B. R.]Kobayashi, N[Kobayashi, N.]Koblitz, S[Koblitz, S.]Krizan, P[Krizan, P.]Kuhr, T[Kuhr, T.]Kuzmin, A[Kuzmin, A.]Kwon, YJ[Kwon, Y. -J.]Lange, JS[Lange, J. S.]Lee, SH[Lee, S. -H.]Li, J[Li, J.]Li, Y[Li, Y.]Libby, J[Libby, J.]Liu, C[Liu, C.]Liu, Y[Liu, Y.]Liventsev, D[Liventsev, D.]Louvot, R[Louvot, R.]Matvienko, D[Matvienko, D.]McOnie, S[McOnie, S.]Miyata, H[Miyata, H.]Miyazaki, Y[Miyazaki, Y.]Mohanty, GB[Mohanty, G. B.]Nagasaka, Y[Nagasaka, Y.]Nakano, E[Nakano, E.]Nakao, M[Nakao, M.]Natkaniec, Z[Natkaniec, Z.]Neubauer, S[Neubauer, S.]Nishida, S[Nishida, S.]Nitoh, O[Nitoh, O.]Ogawa, S[Ogawa, S.]Ohshima, T[Ohshima, T.]Olsen, SL[Olsen, S. L.]Onuki, Y[Onuki, Y.]Pakhlov, P[Pakhlov, P.]Pakhlova, G[Pakhlova, G.]Park, H[Park, H.]Park, HK[Park, H. K.]Pedlar, TK[Pedlar, T. K.]Pestotnik, R[Pestotnik, R.]Peters, M[Peters, M.]Petric, M[Petric, M.]Piilonen, LE[Piilonen, L. E.]Ritter, M[Ritter, M.]Rohrken, M[Roehrken, M.]Ryu, S[Ryu, S.]Sahoo, H[Sahoo, H.]Sakai, Y[Sakai, Y.]Sanuki, T[Sanuki, T.]Schneider, O[Schneider, O.]Schwanda, C[Schwanda, C.]Senyo, K[Senyo, K.]Sevior, ME[Sevior, M. E.]Shapkin, M[Shapkin, M.]Shen, CP[Shen, C. P.]Shibata, TA[Shibata, T. -A.]Shiu, JG[Shiu, J. -G.]Shwartz, B[Shwartz, B.]Simon, F[Simon, F.]Singh, JB[Singh, J. B.]Smerkol, P[Smerkol, P.]Sohn, YS[Sohn, Y. -S.]Solovieva, E[Solovieva, E.]Stanic, S[Stanic, S.]Staric, M[Staric, M.]Sumihama, M[Sumihama, M.]Sumiyoshi, T[Sumiyoshi, T.]Tatishvili, G[Tatishvili, G.]Teramoto, Y[Teramoto, Y.]Uchida, M[Uchida, M.]Uehara, S[Uehara, S.]Unno, Y[Unno, Y.]Uno, S[Uno, S.]Varner, G[Varner, G.]Varvell, KE[Varvell, K. E.]Wang, CH[Wang, C. H.]Wang, XL[Wang, X. L.]Watanabe, Y[Watanabe, Y.]Williams, KM[Williams, K. M.]Won, E[Won, E.]Yabsley, BD[Yabsley, B. D.]Yamashita, Y[Yamashita, Y.]Yamauchi, M[Yamauchi, M.]Zhang, ZP[Zhang, Z. P.]
Issue Date
10-Oct-2011
Citation
PHYSICAL REVIEW D, v.84, no.7
Indexed
SCIE
SCOPUS
Journal Title
PHYSICAL REVIEW D
Volume
84
Number
7
URI
https://scholarworks.bwise.kr/skku/handle/2021.sw.skku/68682
DOI
10.1103/PhysRevD.84.071501
ISSN
1550-7998
Abstract
We study B- meson decays to (p) over bar Lambda D-(*)0 final states using a sample of 657 x 10(6) B (B) over bar events collected at the Gamma(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The observed branching fraction for B- -> (p) over bar Lambda D-0 is (1.43(-0.25)(+0.28) +/-0.18) x 10(-5) with a significance of 8.1 standard deviations, where the uncertainties are statistical and systematic, respectively. Most of the signal events have the (p) over bar Lambda mass peaking near threshold. No significant signal is observed for B- -> (p) over bar Lambda D-0 and the corresponding upper limit on the branching fraction is 4.8 x 10(-5) at the 90% confidence level.
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