CANCELLATION OF INFRARED AND MASS SINGULARITIES IN THE THERMAL DILEPTON RATE

被引:36
作者
ALTHERR, T [1 ]
BECHERRAWY, T [1 ]
机构
[1] UNIV SAVOIE,F-73011 CHAMBERY,FRANCE
关键词
D O I
10.1016/0550-3213(90)90306-X
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
We give a rigorous proof that, at first order in αs, the thermal di-lepton rate is free of infrared and mass singularities. The calculation is performed for massive quarks in the real-time formalism with the n-dimensional regularization scheme. The cancellation is shown to occur within each topology. © 1990.
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页码:174 / 192
页数:19
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