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Measurements of the cross section for e(+)e(-) --> hadrons at center-of-mass energies from 2 to 5 GeV |
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| Authors: | Bai J Z Ban Y Bian J G Chen A D Chen H F Chen H S Chen J C Chen X D Chen Y B Cheng B S Chi S P Chu Y P Choi J B Cui X Z Dai Y S Dong L Y Du Z Z Dunwoodie W Fu H Y Fu L P Gao C S Gu S D Guo Y N Guo Z J Han S W Han Y Harris F A He J He J T He K L He M He X Hong T Heng Y K Hu G Y Hu H M Hu Q H Hu T Huang G S Huang X P Huang Y Z Izen J M Ji X B Jiang C H Jin Y Jones B D Kang J S Ke Z J Kim H J Kim S K Kim T Y Kong D Lai Y F Li D Li H B Li H H Li J Li J C Li P Q Li Q J Li R Y Li W Li W G Li X N Li X Q Liu B Liu F Liu Feng Liu H M Liu J Liu J P Liu T R Liu R G Liu Y Liu Z X Lou X C Lu G R Lu F |
| Affiliation: | Institute of High Energy Physics, Beijing 100039, People's Republic of China. |
| Abstract: | We report values of R = sigma(e(+)e(-)-->hadrons)/sigma(e(+)e(-)-->mu(+)mu(-)) for 85 center-of-mass energies between 2 and 5 GeV measured with the upgraded Beijing Spectrometer at the Beijing Electron-Positron Collider. |
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