UNI-MB - logo
UMNIK - logo
 
E-viri
Celotno besedilo
Odprti dostop
  • Measurement of cross section for $e^{+}e^{-}\rightarrow\Xi^{0}\bar{\Xi}^{0}$ near threshold
    Ablikim, M; Achasov, M. N; An, M. R; Bai, Y; Balossino, I; Bertani, M; Bettoni, D; Bloms, J; Briere, R. A; Cibinetto, G; Denig, A; Ding, Y; Dong, M. Y; Dong, X; Du, S. X; Fu, C. D; Gradl, W; Guo, A. Q; Guskov, A; Harris, F. A; He, K. L; Held, T; Herold, C; Holtmann, T; Hou, G. Y; Hou, Y. R; Hu, Y; Hussain, T; Jiao, Z; Jin, Y; Johansson, T; Kang, X. S; Kliemt, R; Kuemmel, M; Kupsc, A; Lange, J. S; Li, F; Li, H. B; Li, Lei; Li, X. H; Lin, C. X; Liu, J. L; Liu, J. Y; Liu, K. Y; Liu, S. B; Liu, Y. B; Lu, F. X; Lu, H. J; Lu, J. D; Lu, Y; Luo, C. L; Ma, L. L; Ma, R. Q; Malde, S; Mangoni, A; Marcello, S; Mo, X. H; Pan, Y; Qi, H. R; Qin, L. Q; Sang, H. S; Schelhaas, Y; Shan, D. C; Shen, H. F; Shen, X. Y; Shi, X; Shi, X. D; Song, W. M; Song, Y. X; Su, K. X; Sun, H. K; Sun, X; Sun, Y. Z; Tan, Y. X; Tang, J; Thoren, V; Wang, B; Wang, C. W; Wang, D. Y; Wang, W. H; Wang, Z; Wen, S. P; White, D. J; Wollenberg, L; Wu, L. J; Xie, Y. H; Xu, W; Xu, X. P; Yan, W. B; Yang, H. J; Yang, Y. X; Yue, C. X; Zhang, A. Q; Zhang, H. H; Zhang, J. W; Zhang, Jianyu; Zhao, J. Y; Zhao, Q; Zhou, L. P; Zhu, Y. C

    05/2021
    Journal Article

    Phys. Lett. B 820 (2021) 136557 Using $e^+e^-$ collision data at ten center-of-mass energies between 2.644 and 3.080 GeV collected with the BESIII detector at BEPCII and corresponding to an integrated luminosity of about 500 pb$^{-1}$, we measure the cross sections and effective form factors for the process $e^{+}e^{-}\rightarrow\Xi^{0}\bar{\Xi}^{0}$ utilizing a single-tag method. A fit to the cross section of $e^{+}e^{-}\rightarrow\Xi^{0}\bar{\Xi}^{0}$ with a pQCD-driven power function is performed, from which no significant resonance or threshold enhancement is observed. In addition, the ratio of cross sections for the processes $e^{+}e^{-}\rightarrow\Xi^{-}\bar{\Xi}^{+}$ and $\Xi^{0}\bar{\Xi}^{0}$ is calculated using recent BESIII measurement and is found to be compatible with expectation from isospin symmetry.

Vnos na polico