On the singular behaviour of scattering amplitudes in quantum field theory
On the singular behaviour of scattering amplitudes in quantum field theory
复制标题
量子场论中散射振幅的奇异行为
DOI:
10.1007/jhep11(2014)014
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发表时间:
2014
影响因子:
5.4
通讯作者:
G. Rodrigo
中科院分区:
文献类型:
--
作者:
S. Buchta;G. Chachamis;P. Draggiotis;I. Malamos;G. Rodrigo
A bstractWe analyse the singular behaviour of one-loop integrals and scattering amplitudes in the framework of the loop-tree duality approach. We show that there is a partial cancellation of singularities at the loop integrand level among the different components of the corresponding dual representation that can be interpreted in terms of causality. The remaining threshold and infrared singularities are restricted to a finite region of the loop momentum space, which is of the size of the external momenta and can be mapped to the phase-space of real corrections to cancel the soft and collinear divergences.
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影响因子:
8.6
作者:
M. Czakon;P. Fiedler;A. Mitov
通讯作者:
M. Czakon;P. Fiedler;A. Mitov
DOI:
10.1140/epjc/s10052-013-2321-1
发表时间:
2013
期刊:
The European Physical Journal C
影响因子:
--
作者:
S. Becker;S. Weinzierl
通讯作者:
S. Weinzierl
影响因子:
8.6
作者:
F. Campanario;M. Kerner;L. D. Ninh;D. Zeppenfeld
通讯作者:
D. Zeppenfeld
影响因子:
5
作者:
S. Becker;S. Weinzierl
通讯作者:
S. Weinzierl