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Aliberti, R; Bertani, M; Briere, R A; Cossio, F; Cui, X F; Dai, H L; de Boer, R E; Denysenko, I; Destefanis, M; Du, S X; Fang, S S; Fang, Y; Feldbauer, F; Guo, Y P; Han, T T; Heinz, C H; Hu, Y; Huang, X T; Andersson, W Ikegami; Imoehl, W; Jin, S; Jin, Y; Kappert, R; Keshk, I K; Kolcu, O B; Kuemmel, M; Lavezzi, L; Lenz, T; Li, H; Li, H; Li, H B; Li, S Y; Li, W G; Liang, H; Liang, Y T; Lin, T; Liu, Feng; Liu, G M; Liu, J B; Luo, C L; Luo, M X; Ma, H L; Ma, L L; Ma, Q M; Ma, R Q; Malde, S; Mao, Z P; Marcello, S; Mezzadri, G; Muchnoi, N Yu; Ning, Z; Pelizaeus, M; Peng, H P; Ping, R G; Qi, H; Qi, H R; Qiao, C F; Qin, L Q; Ravindran, K; Rong, G; Sarantsev, A; Song, Y X; Sun, W Y; Sun, X; Tian, W H; Tian, Y T; Uman, I; Wang, B; Wang, C W; Wang, X L; Wang, Ziyi; Wang, Zongyuan; Wolke, M; Wu, L H; Wu, L J; Wu, X; Wu, X H; Xia, L; Xie, Y G; Yan, W C; Yang, L; Ye, M; Yin, J H; Yuan, Y; Yuan, Z Y; Zeng, X Zeng; Zeng, Y; Zhang, J W; Zhang, Jianyu; Zhang, X D; Zhang, Y; Zhang, Z Y; Zhao, G; Zhao, M G; Zhao, Q; Zhao, Y B; Zheng, B; Zheng, J P; Zhou, L P; Zhu, T J
Physical review letters, 02/2022, Letnik: 128, Številka: 6Journal Article
Based on electron-positron collision data collected with the BESIII detector operating at the Beijing Electron-Positron Collider II storage rings, the value of R≡σ(e^{+}e^{-}→hadrons)/σ(e^{+}e^{-}→μ^{+}μ^{-}) is measured at 14 center-of-mass energies from 2.2324 to 3.6710 GeV. The resulting uncertainties are less than 3.0% and are dominated by systematic uncertainties.
