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First Measurements of Absolute Branching Fractions of the Xi(0)(c) Baryon at Belleopen accessFirst measurements of absolute branching fractions of the Ξc0 Baryon at Belle
- Other Titles
- First measurements of absolute branching fractions of the Ξc0 Baryon at Belle
- Authors
- Li, Y. B.; Shen, C. P.; Yuan, C. Z.; Adachi, I.; Aihara, H.; Al Said, S.; Asner, D. M.; Aushev, T.; Ayad, R.; Badhrees, I.; Ban, Y.; Bansal, V.; Beleno, C.; Berger, M.; Bhardwaj, V.; Bhuyan, B.; Bilka, T.; Biswal, J.; Bondar, A.; Bozek, A.; Bracko, M.; Cao, L.; Cervenkov, D.; Chen, A.; Cheon, B. G.; Chilikin, K.; Cho, K.; Choi, S. -K.; Choi, Y.; Cinabro, D.; Cunliffe, S.; Di Carlo, S.; Dolezal, Z.; Dong, T. V.; Drasal, Z.; Eidelman, S.; Fast, J. E.; Fulsom, B. G.; Garg, R.; Gaur, V.; Gabyshev, N.; Garmash, A.; Giri, A.; Goldenzweig, P.; Greenwald, D.; Grube, B.; Hayasaka, K.; Hayashii, H.; Hsu, C. -L.; Iijima, T.; Inami, K.; Inguglia, G.; Ishikawa, A.; Itoh, R.; Iwasaki, M.; Iwasaki, Y.; Jacobs, W. W.; Jia, S.; Jin, Y.; Joffe, D.; Joo, K. K.; Karyan, G.; Kawasaki, T.; Kichimi, H.; Kim, D. Y.; Kim, H. J.; Kim, J. B.; Kim, K. T.; Kim, S. H.; Kinoshita, K.; Kodys, P.; Korpar, S.; Kotchetkov, D.; Krizan, P.; Kroeger, R.; Krokovny, P.; Kumita, T.; Kuzmin, A.; Kwon, Y. -J.; Lee, J. Y.; Lee, S. C.; Li, L. K.; Li Gioi, L.; Libby, J.; Liventsev, D.; Lubej, M.; MacNaughton, J.; Masuda, M.; Matsuda, T.; Merola, M.; Miyabayashi, K.; Miyata, H.; Mizuk, R.; Mohanty, G. B.; Mussa, R.; Nakano, E.; Nakao, M.; Nath, K. J.; Nayak, M.; Niiyama, M.; Nishida, S.; Ono, H.; Onuki, Y.; Pakhlov, P.; Pakhlova, G.; Pal, B.; Pardi, S.; Park, S. -H.; Paul, S.; Pedlar, T. K.; Pestotnik, R.; Piilonen, L. E.; Popov, V.; Prencipe, E.; Russo, G.; Sakai, Y.; Salehi, M.; Sandilya, S.; Santelj, L.; Sanuki, T.; Savinov, V.; Schneider, O.; Schnell, G.; Schueler, J.; Schwanda, C.; Schwartz, A. J.; Seino, Y.; Senyo, K.; Sevior, M. E.; Shibata, T. -A.; Shiu, J. -G.; Shwartz, B.; Solovieva, E.; Staric, M.; Sumihama, M.; Sumiyoshi, T.; Sutcliffe, W.; Takizawa, M.; Tanida, K.; Tao, Y.; Tenchini, F.; Trabelsi, K.; Uchida, M.; Uglov, T.; Unno, Y.; Uno, S.; Urquijo, P.; Van Tonder, R.; Varner, G.; Wang, B.; Wang, C. H.; Wang, M. -Z.; Wang, P.; Wang, X. L.; Won, E.; Yang, S. B.; Ye, H.; Yelton, J.; Yin, J. H.; Yusa, Y.; Zhang, Z. P.; Zhilich, V.; Zhukova, V.
- Issue Date
- Feb-2019
- Publisher
- AMER PHYSICAL SOC
- Citation
- PHYSICAL REVIEW LETTERS, v.122, no.8, pp.1 - 7
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICAL REVIEW LETTERS
- Volume
- 122
- Number
- 8
- Start Page
- 1
- End Page
- 7
- ISSN
- 0031-9007
- Abstract
- We present the first measurements of absolute branching fractions of Ξc0 decays into Ξ-π+, ΛK-π+, and pK-K-π+ final states. The measurements are made using a dataset comprising (772±11)×106 BB̄ pairs collected at the (4S) resonance with the Belle detector at the KEKB e+e-collider. We first measure the absolute branching fraction for B-→Λ̄c-Ξc0 using a missing-mass technique; the result is B(B-→Λ̄c-Ξc0)=(9.51±2.10±0.88)×10-4. We subsequently measure the product branching fractions B(B-→Λ̄c-Ξc0)B(Ξc0→Ξ-π+), B(B-→Λ̄c-Ξc0)B(Ξc0→ΛK-π+), and B(B-→Λ̄c-Ξc0)B(Ξc0→pK-K-π+) with improved precision. Dividing these product branching fractions by the result for B-→Λ̄c-Ξc0 yields the following branching fractions: B(Ξc0→Ξ-π+)=(1.80±0.50±0.14)%, B(Ξc0→ΛK-π+)=(1.17±0.37±0.09)%, and B(Ξc0→pK-K-π+)=(0.58±0.23±0.05)%. For the above branching fractions, the first uncertainties are statistical and the second are systematic. Our result for B(Ξc0→Ξ-π+) can be combined with Ξc0 branching fractions measured relative to Ξc0→Ξ-π+ to yield other absolute Ξc0 branching fractions.
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Related Researcher
- Cheon, Byung Gu
- COLLEGE OF NATURAL SCIENCES (DEPARTMENT OF PHYSICS)