RADIATIVE CORRECTION OF THE RESONANT CROSS SECTION IN e<SUP>+</SUP>e<SUP>－</SUP> COLLISION

CHEN Feng-Zhi; WANG Ping; WU Ji-Min; ZHU Yong-Sheng

Chinese Physics C> 1990, Vol. 14> Issue(7) : 585-595

RADIATIVE CORRECTION OF THE RESONANT CROSS SECTION IN e⁺e^－ COLLISION

Institute of High Energy Physics,Academia Sinica,Beijing

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Abstract：
An approximate analytical expression for the radiatively corrected cross section of the resonances in e⁺e^－ collision has been derived with the accuracy to the order of 0.1% for the Z boson as well as the J/ψ and Υ family particles within the experimentally scanned energy range.It is recommended using this analytical expression to treat the resonances which have to be folded with the accelerator beam energy spread in the experimental data analysis.This provides an alternative to the previous method of Jackson and Scharre.It possesses much higher accuracy.

References

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E. A. Kuraev and V. S. Fadin, Sov. J. Nucl. Phys., 41(1985),466.[2] G.Altarelli and G. Martinelli, Yellow,Report CERN 86-02(1986)47;O.Nierosini and L. Trentadue, Phys,Lett., B196 (1987), 55[3] T. S. Tsai, SLAG.PUB-3129 (1983).[4] R. N. Cahn; Phys, Rev., D36(1987), 2666.[5] F. A. Berends et al，CERN-TH 5468 (1989).[6] J. D. Tackson and Scharre, Nucl. Instrum. Methods, 128 (1975), 13.[7] L. N. Lipatov Yad.Fiz., 20(1974),181. [Sov. J. Nucl. Phys.,20(1975), 94].[8] B. Niczyporuk et al., (LENA) Phys. Rev, Lett, 46(1981), 92; DESY 80/53 (1980).[9] M. Greco et al., Phys. Let, 56B(1975), 367; Nucl. Phys., B101(1975),234; W. Buchmuller and S. Cooper, MIT-LNS-159 (1987).

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CHEN Feng-Zhi, WANG Ping, WU Ji-Min and ZHU Yong-Sheng. RADIATIVE CORRECTION OF THE RESONANT CROSS SECTION IN e⁺e^－ COLLISION[J]. Chinese Physics C, 1990, 14(7): 585-595.

CHEN Feng-Zhi, WANG Ping, WU Ji-Min and ZHU Yong-Sheng. RADIATIVE CORRECTION OF THE RESONANT CROSS SECTION IN e⁺e^－ COLLISION[J]. Chinese Physics C, 1990, 14(7): 585-595. shu

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

RADIATIVE CORRECTION OF THE RESONANT CROSS SECTION IN e⁺e^－ COLLISION

Corresponding author: CHEN Feng-Zhi,

Institute of High Energy Physics,Academia Sinica,Beijing

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1990-07-05

Abstract: An approximate analytical expression for the radiatively corrected cross section of the resonances in e⁺e^－ collision has been derived with the accuracy to the order of 0.1% for the Z boson as well as the J/ψ and Υ family particles within the experimentally scanned energy range.It is recommended using this analytical expression to treat the resonances which have to be folded with the accelerator beam energy spread in the experimental data analysis.This provides an alternative to the previous method of Jackson and Scharre.It possesses much higher accuracy.