The pseudothreshold expansion of the 2-loop sunrise selfmass master amplitudes

Authors
Caffo, M Czyz, H Remiddi, E
Citation
M. Caffo et al., The pseudothreshold expansion of the 2-loop sunrise selfmass master amplitudes, NUCL PHYS B, 581(1-2), 2000, pp. 274-294
Citations number
10
Categorie Soggetti
Physics
Journal title
NUCLEAR PHYSICS B
ISSN journal
05503213 → ACNP
Volume
581
Issue
1-2
Year of publication
2000
Pages
274 - 294
Database
ISI
SICI code
0550-3213(20000814)581:1-2<274:TPEOT2>2.0.ZU;2-L
Abstract
The values at pseudothreshold of two loop sunrise master amplitudes with ar bitrary masses are obtained by solving a system of differential equations. The expansion at pseudothreshold of the amplitudes is constructed and some lowest terms are explicitly presented. (C) 2000 Elsevier Science B.V. All r ights reserved.