Analytic Approximation for Process e++e－→τ++τ－ Cross Section Near Threshold

WU Ji-Min; ZHAO Pei-Ying

Chinese Physics C> 1993, Vol. 17> Issue(4) : 379-383

Analytic Approximation for Process e⁺+e^－→τ⁺+τ^－ Cross Section Near Threshold

WU Ji-Min ^, ,
ZHAO Pei-Ying

Institute of High Energy Physics,Academia Sinica,Beijing 100039

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Abstract：
In the structure function approach,we calculate the threshold behaviours for e⁺+e^－→τ⁺+τ^－,which including QED radiative corrections from initial correction,vacuum polarization effect,Coulomb effect and final state correction.This theoretical prediction for threshold behaviours of τ-pair production is useful for BES new measurement of lepton τ mass.

References

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WU Ji-Min and ZHAO Pei-Ying. Analytic Approximation for Process e⁺+e^－→τ⁺+τ^－ Cross Section Near Threshold[J]. Chinese Physics C, 1993, 17(4): 379-383.

WU Ji-Min and ZHAO Pei-Ying. Analytic Approximation for Process e⁺+e^－→τ⁺+τ^－ Cross Section Near Threshold[J]. Chinese Physics C, 1993, 17(4): 379-383. shu

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

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