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Infrared singularities cancellation in reaction rates at finite temperature

โœ Scribed by Tanguy Altherr


Book ID
113360039
Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
358 KB
Volume
262
Category
Article
ISSN
0370-2693

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We consider a typical hard scattering process in a heat bath of photons and electrons at temperature, T, in finite temperature QED. We show that the infrared pieces of both the real and virtual parts of the cross section factorise; these can be exponentiated and cancel between each other to all orde