Measurements of the branching fractions of Ξc0→ΛKS0, Ξc0→Σ0KS0, and Ξc0→Σ+K- decays at Belle

Y. Li, J.  X Cui, S. Jia, C.  P Shen, I. Adachi, J.  K Ahn, H. Aihara, S. Al Said, D.  M Asner, H. Atmacan, T. Aushev, R. Ayad, V. Babu, S. Bahinipati, P. Behera, K. Belous, J. Bennett, M. Bessner, V. Bhardwaj, B. BhuyanT. Bilka, A. Bobrov, D. Bodrov, G. Bonvicini, J. Borah, A. Bozek, M. Bračko, P. Branchini, T.  E Browder, A. Budano, M. Campajola, D. Červenkov, M. C. Chang, P. Chang, A. Chen, B.  G Cheon, K. Chilikin, H.  E Cho, K. Cho, S. J. Cho, S. K. Choi, Y. Choi, S. Choudhury, D. Cinabro, S. Cunliffe, S. Das, G. De Nardo, G. De Pietro, R. Dhamija, F. Di Capua, J. Dingfelder, Z. Doležal, T.  V Dong, D. Dossett, D. Epifanov, T. Ferber, A. Frey, B.  G Fulsom, R. Garg, V. Gaur, N. Gabyshev, A. Giri, P. Goldenzweig, T. Gu, K. Gudkova, C. Hadjivasiliou, S. Halder, O. Hartbrich, K. Hayasaka, H. Hayashii, M.  T Hedges, W. S. Hou, C. L. Hsu, T. Iijima, K. Inami, G. Inguglia, A. Ishikawa, R. Itoh, M. Iwasaki, Y. Iwasaki, W.  W Jacobs, E. J. Jang, Y. Jin, K.  K Joo, J. Kahn, A.  B Kaliyar, T. Kawasaki, C. Kiesling, C.  H Kim, D.  Y Kim, K. H. Kim, Y. K. Kim, K. Kinoshita, P. Kodyš, T. Konno, A. Korobov, S. Korpar, E. Kovalenko, P. Križan, R. Kroeger, P. Krokovny, T. Kuhr, M. Kumar, R. Kumar, K. Kumara, A. Kuzmin, Y. J. Kwon, Y. T. Lai, T. Lam, J.  S Lange, M. Laurenza, S.  C Lee, C.  H Li, J. Li, L.  K Li, Y.  B Li, L. Li Gioi, J. Libby, K. Lieret, D. Liventsev, A. Martini, M. Masuda, T. Matsuda, D. Matvienko, F. Meier, M. Merola, F. Metzner, K. Miyabayashi, R. Mizuk, G.  B Mohanty, R. Mussa, M. Nakao, Z. Natkaniec, A. Natochii, L. Nayak, M. Nayak, M. Niiyama, N.  K Nisar, S. Nishida, K. Ogawa, S. Ogawa, H. Ono, P. Oskin, P. Pakhlov, G. Pakhlova, T. Pang, S. Pardi, S. H. Park, S. Patra, S. Paul, T.  K Pedlar, R. Pestotnik, L.  E Piilonen, T. Podobnik, V. Popov, E. Prencipe, M.  T Prim, M. Röhrken, A. Rostomyan, N. Rout, G. Russo, D. Sahoo, S. Sandilya, A. Sangal, L. Santelj, T. Sanuki, V. Savinov, G. Schnell, C. Schwanda, Y. Seino, K. Senyo, M.  E Sevior, M. Shapkin, C. Sharma, J. G. Shiu, B. Shwartz, J.  B Singh, A. Sokolov, E. Solovieva, S. Stanič, M. Starič, Z.  S Stottler, J.  F Strube, M. Sumihama, T. Sumiyoshi, M. Takizawa, U. Tamponi, K. Tanida, F. Tenchini, M. Uchida, Y. Unno, K. Uno, S. Uno, P. Urquijo, Y. Usov, R. Van Tonder, G. Varner, A. Vinokurova, E. Waheed, E. Wang, M. Z. Wang, M. Watanabe, S. Watanuki, O. Werbycka, E. Won, B.  D Yabsley, W. Yan, S.  B Yang, H. Ye, J. Yelton, C.  Z Yuan, Y. Zhai, Z.  P Zhang, V. Zhilich, V. Zhukova

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

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+.

Original languageEnglish
Article numberL011102
JournalPhysical Review D
Volume105
Issue number1
DOIs
Publication statusPublished - 2022 Jan 1

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Fingerprint

Dive into the research topics of 'Measurements of the branching fractions of Ξc0→ΛKS0, Ξc0→Σ0KS0, and Ξc0→Σ+K- decays at Belle'. Together they form a unique fingerprint.

Cite this