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          Institute: MPI für Physik     Collection: YB 2016     Display Documents



ID: 716482.0, MPI für Physik / YB 2016
Observation of $B^{0} \\rightarrow p\\bar{\\Lambda} D^{(*)-}$
Authors:Chang, Y. -Y.; Wang, M. -Z.; Abdesselam, A.; Adachi, I.; Adamczyk, K.; Aihara, H.; Al Said, S.; Asner, D. M.; Atmacan, H.; Aushev, T.; Babu, V.; Badhrees, I.; Bakich, A. M.; Barberio, E.; Bhuyan, B.; Biswal, J.; Bobrov, A.; Bozek, A.; Bračko, M.; Browder, T. E.; Červenkov, D.; Chekelian, V.; Chen, A.; Cheon, B. G.; Chilikin, K.; Chistov, R.; Chobanova, V.; Choi, S. -K.; Choi, Y.; Cinabro, D.; Dalseno, J.; Danilov, M.; Dingfelder, J.; Doležal, Z.; Drásal, Z.; Dutta, D.; Eidelman, S.; Farhat, H.; Fast, J. E.; Ferber, T.; Fulsom, B. G.; Gaur, V.; Gabyshev, N.; Ganguly, S.; Garmash, A.; Gillard, R.; Glattauer, R.; Goh, Y. M.; Goldenzweig, P.; Greenwald, D.; Grzymkowska, O.; Haba, J.; Hayasaka, K.; Hayashii, H.; He, X. H.; Hou, W. -S.; Hsu, C. -L.; Iijima, T.; Inami, K.; Ishikawa, A.; Itoh, R.; Iwasaki, Y.; Jacobs, W. W.; Jaegle, I.; Joffe, D.; Joo, K. K.; Kawasaki, T.; Kim, D. Y.; Kim, H. J.; Kim, J. B.; Kim, J. H.; Kim, K. T.; Kim, M. J.; Kim, S. H.; Kim, Y. J.; Kinoshita, K.; Korpar, S.; Križan, P.; Krokovny, P.; Kuhr, T.; Kumita, T.; Kuzmin, A.; Kwon, Y. -J.; Lai, Y. -T.; Lee, I. S.; Li, L.; Li, Y.; Libby, J.; Liventsev, D.; Luki, P.; Masuda, M.; Miyabayashi, K.; Miyake, H.; Miyata, H.; Mizuk, R.; Mohanty, G. B.; Mohanty, S.; Moll, A.; Moon, H. K.; Mori, T.; Nakano, E.; Nakao, M.; Nanut, T.; Nayak, M.; Nishida, S.; Ogawa, S.; Ozaki, H.; Pakhlov, P.; Pakhlova, G.; Pal, B.; Park, C. W.; Pedlar, T . K.; Pestotnik, R.; Petrič, M.; Piilonen, L. E.; Rauch, J.; Ribežl, E.; Ritter, M.; Rostomyan, A.; Ryu, S.; Sahoo, H.; Sakai, Y.; Sandilya, S.; Santelj, L.; Sanuki, T.; Savinov, V.; Schneider, O.; Schnell, G.; Schwanda, C.; Seino, Y.; Senyo, K.; Seong, I. S.; Sevior, M. E.; Shebalin, V.; Shen, C. P.; Shibata, T. -A.; Shiu, J. -G.; Simon, F.; Sohn, Y. -S.; Starič, M.; Stypula, J.; Sumihama, M.; Sumisawa, K.; Sumiyoshi, T.; Tamponi, U.; Tanida, K.; Teramoto, Y.; Uglov, T.; Unno, Y.; Uno, S.; Usov, Y.; Van Hulse, C.; Vanhoefer, P.; Varner, G.; Vorobyev, V.; Vossen, A.; Wagner, M. N.; Wang, C. H.; Wang, P.; Watanabe, M.; Watanabe, Y.; Williams, K. M.; Won, E.; Yamaoka, J.; Yashchenko, S.; Yelton, J.; Yusa, Y.; Zhang, Z. P.; Zhulanov, V.; Zupanc, A.
Date of Publication (YYYY-MM-DD):2015
Title of Journal:Physical Review Letters
Journal Abbrev.:Phys.Rev.Lett.
Issue / Number:115
Start Page:221803
Audience:Not Specified
Intended Educational Use:No
Abstract / Description:We report the first observation of the decays $B^0 \\rightarrow p\\bar{\\Lambda} D^{(*)-}$. The data sample of $711$ fb$^{-1}$ used in this analysis corresponds to $772$ million $B\\bar{B}$ pairs, collected at the $\\Upsilon(4S)$ resonance by the Belle detector at the KEKB asymmetric-energy $e^{+}e^{-}$ collider. We observe $19.8\\sigma$ and $10.8\\sigma$ excesses of events for the two decay modes and measure the branching fractions of $B^0 \\rightarrow p\\bar{\\Lambda} D^{-}$ and $B^0 \\rightarrow p\\bar{\\Lambda} D^{*-}$ to be $(25.1\\pm2.6\\pm3.5)\\times10^{-6}$ and $(33.6\\pm6.3\\pm4.4)\\times10^{-6}$, respectively, where the first uncertainties are statistical and the second are systematic. These results are not compatible with the predictions based on the generalized factorization approach. In addition, a threshold enhancement in the di-baryon ($p\\bar{\\Lambda}$) system is observed, consistent with that observed in similar $B$ decays.
Classification / Thesaurus:Belle II
Comment of the Author/Creator:16 pages, 3 figures and 3 tables, submitted to PRL
External Publication Status:published
Document Type:Article
Communicated by:MPI für Physik
Affiliations:MPI für Physik
Identifiers:LOCALID:MPP-2015-437
URL:http://inspirehep.net/search?p=find+eprint+1509.03...
URL:http://arxiv.org/abs/1509.03034
URL:http://arXiv.org/abs/arxiv:1509.03034
URL:https://publications.mppmu.mpg.de/?action=search&m...
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