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Measurements of the branching fractions of Ξc0→ΛKS0, Ξc0→Σ0KS0, and Ξc0→Σ+K- decays at Belle
- Authors
- Li, Y.; Cui, J.; Jia, S.; Shen, C.; Adachi, I.; Ahn, J.; Aihara, H.; Al, Said S.; Asner, D.; Atmacan, H.; Aushev, T.; Ayad, R.; Babu, V.; Bahinipati, S.; Behera, P.; Belous, K.; Bennett, J.; Bessner, M.; Bhardwaj, V.; Bhuyan, B.; Bilka, T.; Bobrov, A.; Bodrov, D.; Bonvicini, G.; Borah, J.; Bozek, A.; Bračko, M.; Branchini, P.; Browder, T.; Budano, A.; Campajola, M.; Červenkov, D.; Chang, M.-C.; Chang, P.; Chen, A.; Cheon, B.; Chilikin, K.; Cho, H.; Cho, K.; Cho, S.-J.; Choi, S.-K.; Choi, Y.; Choudhury, S.; Cinabro, D.; Cunliffe, S.; Das, S.; De, Nardo G.; De, Pietro G.; Dhamija, R.; Di, Capua F.; Dingfelder, J.; Doležal, Z.; Dong, T.; Dossett, D.; Epifanov, D.; Ferber, T.; Frey, A.; Fulsom, B.; Garg, R.; Gaur, V.; Gabyshev, N.; Giri, A.; Goldenzweig, P.; Gu, T.; Gudkova, K.; Hadjivasiliou, C.; Halder, S.; Hartbrich, O.; Hayasaka, K.; Hayashii, H.; Hedges, M.; Hou, W.-S.; Hsu, C.-L.; Iijima, T.; Inami, K.; Inguglia, G.; Ishikawa, A.; Itoh, R.; Iwasaki, M.; Iwasaki, Y.; Jacobs, W.; Jang, E.-J.; Jin, Y.; Joo, K.; Kahn, J.; Kaliyar, A.; Kawasaki, T.; Kiesling, C.; Kim, C.; Kim, D.; Kim, K.-H.; Kim, Y.-K.; Kinoshita, K.; Kodyš, P.; Konno, T.; Korobov, A.; Korpar, S.; Kovalenko, E.; Križan, P.; Kroeger, R.; Krokovny, P.; Kuhr, T.; Kumar, M.; Kumar, R.; Kumara, K.; Kuzmin, A.; Kwon, Y.-J.; Lai, Y.-T.; Lam, T.; Lange, J.; Laurenza, M.; Lee, S.; Li, C.; Li, J.; Li, L.; Li, Y.; Li, Gioi L.; Libby, J.; Lieret, K.; Liventsev, D.; Martini, A.; Masuda, M.; Matsuda, T.; Matvienko, D.; Meier, F.; Merola, M.; Metzner, F.; Miyabayashi, K.; Mizuk, R.; Mohanty, G.; Mussa, R.; Nakao, M.; Natkaniec, Z.; Natochii, A.; Nayak, L.; Nayak, M.; Niiyama, M.; Nisar, N.; Nishida, S.; Ogawa, K.; Ogawa, S.; Ono, H.; Oskin, P.; Pakhlov, P.; Pakhlova, G.; Pang, T.; Pardi, S.; Park, S.-H.; Patra, S.; Paul, S.; Pedlar, T.; Pestotnik, R.; Piilonen, L.; Podobnik, T.; Popov, V.; Prencipe, E.; Prim, M.; Röhrken, M.; Rostomyan, A.; Rout, N.; Russo, G.; Sahoo, D.; Sandilya, S.; Sangal, A.; Santelj, L.; Sanuki, T.; Savinov, V.; Schnell, G.; Schwanda, C.; Seino, Y.; Senyo, K.; Sevior, M.; Shapkin, M.; Sharma, C.; Shiu, J.-G.; Shwartz, B.; Singh, J.; Sokolov, A.; Solovieva, E.; Stanič, S.; Starič, M.; Stottler, Z.; Strube, J.; Sumihama, M.; Sumiyoshi, T.; Takizawa, M.; Tamponi, U.; Tanida, K.; Tenchini, F.; Uchida, M.; Unno, Y.; Uno, K.; Uno, S.; Urquijo, P.; Usov, Y.; Van, Tonder R.; Varner, G.; Vinokurova, A.; Waheed, E.; Wang, E.; Wang, M.-Z.; Watanabe, M.; Watanuki, S.; Werbycka, O.; Won, E.; Yabsley, B.; Yan, W.; Yang, S.; Ye, H.; Yelton, J.; Yuan, C.; Zhai, Y.; Zhang, Z.; Zhilich, V.; Zhukova, V.
- Issue Date
- 6-Jan-2022
- Publisher
- American Physical Society
- Citation
- Physical Review D, v.105, no.1
- Journal Title
- Physical Review D
- Volume
- 105
- Number
- 1
- ISSN
- 2470-0010
2470-0029
- Abstract
- Using the entire data sample of 980 fb-1 collected with the Belle detector at the KEKB asymmetric-energy e+e- collider, we present measurements of the branching fractions of the Cabibbo-favored decays Ξc0→ΛKS0, Ξc0→Σ0KS0, and Ξc0→Σ+K-. Taking the decay Ξc0→Ξ-π+ as the normalization mode, we measure the branching fraction ratio B(Ξc0→ΛKS0)/B(Ξc0→Ξ-π+)=0.229±0.008±0.012 with improved precision, and measure the branching fraction ratios B(Ξc0→Σ0KS0)/B(Ξc0→Ξ-π+)=0.038±0.006±0.004 and B(Ξc0→Σ+K-)/B(Ξc0→Ξ-π+)=0.123±0.007±0.010 for the first time. Taking into account the branching fraction of the normalization mode, the absolute branching fractions are determined to be B(Ξc0→ΛKS0)=(3.27±0.11±0.17±0.73)×10-3, B(Ξc0→Σ0KS0)=(0.54±0.09±0.06±0.12)×10-3, and B(Ξc0→Σ+K-)=(1.76±0.10±0.14±0.39)×10-3. The first and second uncertainties above are statistical and systematic, respectively, while the third ones arise from the uncertainty of the branching fraction of Ξc0→Ξ-π+. Published by the American Physical Society
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