Measurement of the Cross Section for e^{+}e^{-}→Hadrons at Energies from 2.2324 to 3.6710 GeV

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 uncertai...

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Veröffentlicht in:Physical review letters 2022-02, Vol.128 (6), p.062004-062004, Article 062004
Hauptverfasser: Ablikim, M, Achasov, M N, Adlarson, P, Ahmed, S, Albrecht, M, Aliberti, R, Amoroso, A, An, M R, An, Q, Bai, X H, Bai, Y, Bakina, O, Ferroli, R Baldini, Balossino, I, Ban, Y, Begzsuren, K, Berger, N, Bertani, M, Bettoni, D, Bianchi, F, Bloms, J, Bortone, A, Boyko, I, Briere, R A, Cai, H, Cai, X, Calcaterra, A, Cao, G F, Cao, N, Cetin, S A, Chang, J F, Chang, W L, Chelkov, G, Chen, D Y, Chen, G, Chen, H S, Chen, M L, Chen, S J, Chen, X R, Chen, Y B, Chen, Z J, Cheng, W S, Cibinetto, G, Cossio, F, Cui, X F, Dai, H L, Dai, X C, Dbeyssi, A, de Boer, R E, Dedovich, D, Deng, Z Y, Denig, A, Denysenko, I, Destefanis, M, De Mori, F, Ding, Y, Dong, C, Dong, J, Dong, L Y, Dong, M Y, Dong, X, Du, S X, Fan, Y L, Fang, J, Fang, S S, Fang, Y, Farinelli, R, Fava, L, Feldbauer, F, Felici, G, Feng, C Q, Feng, J H, Fritsch, M, Fu, C D, Gao, Y, Gao, Y G, Garzia, I, Ge, P T, Geng, C, Gersabeck, E M, Gilman, A, Goetzen, K, Gong, L, Gong, W X, Gradl, W, Greco, M, Gu, L M, Gu, M H, Guan, C Y, Guo, A Q, Guo, L B, Guo, R P, Guo, Y P, Guskov, A, Han, T T, Han, W Y, Hao, X Q, Harris, F A, He, K L
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Sprache:eng
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