Initial State Radiative Correction in R Measurement at BES

HU Hai-Ming; QI Xiang-Rong; HUANG Guang-Shun; ZHAO Zheng-Guo

Chinese Physics C> 2001, Vol. 25> Issue(8) : 701-709

Initial State Radiative Correction in R Measurement at BES

Institute of High Energy Physics, CAS, Beijing 100039, China

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Abstract：
Three typical schemes of the initial state radiative correction in e⁺e^－ collision through single photon annihilation were reviewed, and the numerical results were calculated in the energy region of 2—5GeV. The differences of the theoretical values of radiative correction factors (1+δ) are about 1%—2%. The uncertainty of the effective (1+δ_obs) is estimated to be about 2%—3%.

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HU Hai-Ming, QI Xiang-Rong, HUANG Guang-Shun and ZHAO Zheng-Guo. Initial State Radiative Correction in R Measurement at BES[J]. Chinese Physics C, 2001, 25(8): 701-709.

HU Hai-Ming, QI Xiang-Rong, HUANG Guang-Shun and ZHAO Zheng-Guo. Initial State Radiative Correction in R Measurement at BES[J]. Chinese Physics C, 2001, 25(8): 701-709. shu

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Received: 2000-07-15
Revised: 1900-01-01

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