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Search for Lambda(+)(c) -> phi p pi(0) and branching fraction measurement of Lambda(+)(c) -> K- pi(+) p pi(0)
- Authors
- Pal, B.; Schwartz, A. J.; Adachi, I.; Aihara, H.; Al Said, S.; Asner, D. M.; Aushev, T.; Ayad, R.; Badhrees, I.; Bakich, A. M.; Bansal, V.; Behera, P.; Berger, M.; Bhardwaj, V.; Biswal, J.; Bobrov, A.; Bozek, A.; Bracko, M.; Browder, T. E.; Cervenkov, D.; Chekelian, V.; Chen, A.; Cheon, B. G.; Chilikin, K.; Cho, K.; Choi, S. -K.; Choi, Y.; Cinabro, D.; Dash, N.; Di Carlo, S.; Dolezal, Z.; Drasal, Z.; Eidelman, S.; Ferber, T.; Fulsom, B. G.; Gaur, V.; Gabyshev, N.; Garmash, A.; Goldenzweig, P.; Guido, E.; Hara, T.; Hayasaka, K.; Hayashii, H.; Hou, W. -S.; Hsu, C. -L.; Inami, K.; Ishikawa, A.; Itoh, R.; Jacobs, W. W.; Jaegle, I.; Jeon, H. B.; Jia, S.; Jin, Y.; Joffe, D.; Joo, K. K.; Karyan, G.; Kato, Y.; Kim, D. Y.; Kim, J. B.; Kim, K. T.; Kim, S. H.; Kim, Y. J.; Kinoshita, K.; Kodys, P.; Korpar, S.; Kotchetkov, D.; Krokovny, P.; Kuhr, T.; Kulasiri, R.; Kwon, Y. -J.; Li, C. H.; Li, L.; Li, Y.; Gioi, L. Li; Libby, J.; Liventsev, D.; Lubej, M.; Luo, T.; MacNaughton, J.; Matvienko, D.; Merola, M.; Miyabayashi, K.; Miyata, H.; Mizuk, R.; Mohanty, G. B.; Moon, H. K.; Mori, T.; Mussa, R.; Nakano, E.; Nakao, M.; Nanut, T.; Nath, K. J.; Nayak, M.; Niiyama, M.; Nishida, S.; Ogawa, S.; Ono, H.; Pakhlov, P.; Pakhlova, G.; Pardi, S.; Park, C. -S.; Paul, S.; Pedlar, T. K.; Pestotnik, R.; Piilonen, L. E.; Ritter, M.; Rostomyan, A.; Sakai, Y.; Sandilya, S.; Santelj, L.; Sanuki, T.; Savinov, V.; Schneider, O.; Schnell, G.; Schwanda, C.; Seino, Y.; Senyo, K.; Sevior, M. E.; Shibata, T. -A.; Shiu, J. -G.; Simon, F.; Sokolov, A.; Solovieva, E.; Staric, M.; Strube, J. F.; Sumihama, M.; Sumiyoshi, T.; Takizawa, M.; Tamponi, U.; Tanida, K.; Tenchini, F.; Uchida, M.; Uglov, T.; Uno, S.; Van Hulse, C.; Varner, G.; Varvell, K. E.; Vinokurova, A.; Vorobyev, V.; Wang, C. H.; Wang, M. -Z.; Wang, X. L.; Watanabe, M.; Watanabe, Y.; Watanuki, S.; Widmann, E.; Won, E.; Yamashita, Y.; Ye, H.; Yelton, J.; Yuan, C. Z.; Zhang, Z. P.; Zhilich, V.; Zhukova, V.; Zhulanov, V.; Zupanc, A.
- Issue Date
- 22-9월-2017
- Publisher
- AMER PHYSICAL SOC
- Citation
- PHYSICAL REVIEW D, v.96, no.5
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICAL REVIEW D
- Volume
- 96
- Number
- 5
- ISSN
- 2470-0010
- Abstract
- We have searched for the Cabibbo-suppressed decay Lambda(+)(c) -> pi p(0) in e(+) e(-) collisions using a data sample corresponding to an integrated luminosity of 915 fb(-1). The data were collected by the Belle experiment at the KEKB e(+) e(-) asymmetric-energy collider running at or near the (4S) and (5S) resonances. No significant signal is observed, and we set an upper limit on the branching fraction of B(Lambda(+)(c) -> phi p(0)) < 15.3 x 10(-5) at 90% confidence level. The contribution of nonresonant Lambda(+)(c) -> K+ K- p pi(0) decays is found to be consistent with zero, and the corresponding upper limit on its branching fraction is set to be B(Lambda(+)(c) ->. K+ K- p pi(0))(NR) < 6.3 x 10(-5) at 90% confidence level. We also search for an intermediate hidden-strangeness pentaquark decay P-s(+) -> phi p. We see no evidence for this intermediate decay and set an upper limit on the product branching fraction of B(Lambda(+)(c) -> P-s(+) pi(0)) x B(P-s(+) -> phi p) < 8.3 x 10(-5) at 90% confidence level. Finally, we measure the branching fraction for the Cabibbo-favored decay Lambda(+)(c) -> K- pi(+) p pi(0); the result is B(Lambda(+)(c) -> K- pi(+) p pi(0)) = (4.42 +/- 0.05(stat)+/- 0.12(syst)+/- 0.16(norm))%, which is the most precise measurement to date.
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