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Evidence for the decay B-0 -> eta pi(0)
- Authors
- Pal, B.; Schwartz, A. J.; Abdesselam, A.; Adachi, I.; Aihara, H.; Al Said, S.; Arinstein, K.; Asner, D. M.; Aulchenko, V.; Aushev, T.; Ayad, R.; Babu, V.; Badhrees, I.; Bakich, A. M.; Bobrov, A.; Bonvicini, G.; Bozek, A.; Bracko, M.; Browder, T. E.; Cervenkov, D.; Chang, M. -C.; Chekelian, V.; Chen, A.; Cheon, B. G.; Cho, K.; Chobanova, V.; Choi, Y.; Cinabro, D.; Dalseno, J.; Dolezal, Z.; Drasal, Z.; Drutskoy, A.; Dutta, D.; Eidelman, S.; Farhat, H.; Fast, J. E.; Ferber, T.; Frost, O.; Fulsom, B. G.; Gaur, V.; Gabyshev, N.; Ganguly, S.; Garmash, A.; Getzkow, D.; Gillard, R.; Glattauer, R.; Goh, Y. M.; Golob, B.; Grzymkowska, O.; Hara, T.; Hayasaka, K.; Hayashii, H.; He, X. H.; Hou, W. -S.; Huschle, M.; Hyun, H. J.; Iijima, T.; Ishikawa, A.; Itoh, R.; Iwasaki, Y.; Jaegle, I.; Julius, T.; Kang, K. H.; Kato, E.; Kiesling, C.; Kim, D. Y.; Kim, J. B.; Kim, J. H.; Kim, K. T.; Kim, M. J.; Kim, S. H.; Kim, Y. J.; Kinoshita, K.; Ko, B. R.; Kodys, P.; Korpar, S.; Krizan, P.; Krokovny, P.; Kuhr, T.; Kumita, T.; Kuzmin, A.; Kwon, Y. -J.; Lange, J. S.; Lee, D. H.; Lee, I. S.; Li, Y.; Gioi, L. Li; Libby, J.; Liventsev, D.; Lukin, P.; Matvienko, D.; Miyata, H.; Mohanty, G. B.; Moll, A.; Moon, H. K.; Nakamura, K. R.; Nakano, E.; Nakao, M.; Nanut, T.; Natkaniec, Z.; Nayak, M.; Nishida, S.; Ogawa, S.; Okuno, S.; Pakhlov, P.; Pakhlova, G.; Park, C. W.; Park, H.; Pedlar, T. K.; Pesantez, L.; Petric, M.; Piilonen, L. E.; Pulvermacher, C.; Ribezl, E.; Ritter, M.; Rostomyan, A.; Ryu, S.; Sakai, Y.; Sandilya, S.; Santel, D.; Santelj, L.; Sanuki, T.; Sato, Y.; Schneider, O.; Schnell, G.; Schwanda, C.; Senyo, K.; Seon, O.; Sevior, M. E.; Shapkin, M.; Shebalin, V.; Shen, C. P.; Shibata, T. -A.; Shiu, J. -G.; Sibidanov, A.; Simon, F.; Sohn, Y. -S.; Solovieva, E.; Stanic, S.; Staric, M.; Sumihama, M.; Sumisawa, K.; Sumiyoshi, T.; Tamponi, U.; Teramoto, Y.; Thorne, F.; Uchida, M.; Uehara, S.; Unno, Y.; Uno, S.; Usov, Y.; Van Hulse, C.; Vanhoefer, P.; Varner, G.; Vinokurova, A.; Vorobyev, V.; Vossen, A.; Wagner, M. N.; Wang, C. H.; Wang, M. -Z.; Wang, P.; Wang, X. L.; Watanabe, Y.; Won, E.; Yamamoto, H.; Yamaoka, J.; Yashchenko, S.; Zhang, Z. P.; Zhilich, V.; Zhulanov, V.; Zupanc, A.
- Issue Date
- 9-7월-2015
- Publisher
- AMER PHYSICAL SOC
- Citation
- PHYSICAL REVIEW D, v.92, no.1
- Indexed
- SCOPUS
- Journal Title
- PHYSICAL REVIEW D
- Volume
- 92
- Number
- 1
- ISSN
- 2470-0010
- Abstract
- We report a search for the charmless hadronic decay B-0 -> eta pi(0) with a data sample corresponding to an integrated luminosity of 694 fb(-1) containing 753 x 10(6) BB pairs. The data were collected by the Belle experiment running on the Upsilon(4S) resonance at the KEKB e(+)e(-) collider. We measure a branching fraction B(B-0 > eta pi(0)) = (4.1(-1.5-0.7)(+1.75+0.5)) x 10(-7), where the first unceminty is statistical and the second is systematic. Our measurement gives an upper limit of beta(B-0 -> n pi(0)) < 6.5 x 10(-7) at 90% confidence level. The signal has a significance of 3.0 standard deviations and constitutes the first evidence for this decay mode.
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