Akademska digitalna zbirka SLovenije - logo
E-viri
Recenzirano Odprti dostop
  • Measurements of branching fractions and asymmetry parameters of Ξc0→ΛK¯∗0, Ξc0→Σ0K¯∗0, and Ξc0→Σ+K∗− decays at Belle
    Tang, S. S.; Shen, C. P.; Adachi, I.; Aihara, H.; Aulchenko, V.; Aushev, T.; Bahinipati, S.; Bennett, J.; Bessner, M.; Bilka, T.; Biswal, J.; Bobrov, A.; Bračko, M.; Browder, T. E.; Campajola, M.; Chilikin, K.; Cho, H. E.; Cho, K.; Cho, S.-J.; Choi, S.-K.; Cinabro, D.; Di Capua, F.; Dong, T. V.; Epifanov, D.; Ferber, T.; Flood, K.; Fulsom, B. G.; Garg, R.; Garmash, A.; Hartbrich, O.; Hayasaka, K.; Hayashii, H.; Hou, W.-S.; Hsu, C.-L.; Iijima, T.; Itoh, R.; Jacobs, W. W.; Jin, Y.; Joo, K. K.; Karyan, G.; Kato, Y.; Kichimi, H.; Kim, S. H.; Kim, Y.-K.; Kinoshita, K.; Kodyš, P.; Konno, T.; Korobov, A.; Kovalenko, E.; Križan, P.; Kuhr, T.; Kuzmin, A.; Lalwani, K.; Lange, J. S.; Li, L. K.; Libby, J.; Masuda, M.; Merola, M.; Miyabayashi, K.; Miyata, H.; Nakao, M.; Natochii, A.; Nayak, L.; Niiyama, M.; Nisar, N. K.; Ogawa, S.; Oskin, P.; Pakhlov, P.; Podobnik, T.; Popov, V.; Prencipe, E.; Prim, M. T.; Sahoo, D.; Sandilya, S.; Savinov, V.; Seino, Y.; Senyo, K.; Sevior, M. E.; Sharma, C.; Sokolov, A.; Solovieva, E.; Stottler, Z. S.; Takizawa, M.; Tanida, K.; Tenchini, F.; Uehara, S.; Unno, Y.; Uno, S.; Van Tonder, R.; Varner, G.; Waheed, E.; Wang, M.-Z.; Wang, P.; Yabsley, B. D.; Yan, W.; Yang, S. B.; Ye, H.; Yin, J. H.; Zhang, Z. P.; Zhukova, V.

    The journal of high energy physics, 28/6, Letnik: 2021, Številka: 6
    Journal Article

    A bstract Using a data sample of 980 fb − 1 collected with the Belle detector at the KEKB asymmetric-energy e + e − collider, we study the processes of Ξ c 0 → Λ K ¯ ∗ 0 , Ξ c 0 → Σ 0 K ¯ ∗ 0 , and Ξ c 0 → Σ + K ∗ − for the first time. The relative branching ratios to the normalization mode of Ξ c 0 → Ξ − π + are measured to be B Ξ c 0 → Λ K ¯ ∗ 0 / B Ξ c 0 → Ξ − π + = 0.18 ± 0.02 stat . ± 0.01 syst . , B Ξ c 0 → Σ 0 K ¯ ∗ 0 / B Ξ c 0 → Ξ − π + = 0.69 ± 0.03 stat . ± 0.03 syst . , B Ξ c 0 → Σ + K ∗ − / B Ξ c 0 → Ξ − π + = 0.34 ± 0.06 stat . ± 0.02 syst . , where the uncertainties are statistical and systematic, respectively. We obtain B Ξ c 0 → Λ K ¯ ∗ 0 = 3.3 ± 0.3 stat . ± 0.2 syst . ± 1.0 ref . × 10 − 3 , B Ξ c 0 → Σ 0 K ¯ ∗ 0 = 12.4 ± 0.5 stat . ± 0.5 syst . ± 3.6 ref . × 10 − 3 , B Ξ c 0 → Σ + K ∗ 0 = 6.1 ± 1.0 stat . ± 0.4 syst . ± 1.8 ref . × 10 − 3 , where the uncertainties are statistical, systematic, and from B Ξ c 0 → Ξ − π + , respectively. The asymmetry parameters α Ξ c 0 → Λ K ¯ ∗ 0 and α Ξ c 0 → Σ + K ∗ − are 0 . 15 ± 0 . 22(stat . ) ± 0 . 04(syst . ) and − 0 . 52 ± 0 . 30(stat . ) ± 0 . 02(syst . ), respectively, where the uncertainties are statistical followed by systematic.

Vnos na polico