A differential operator for integrating one-loop scattering equations
A differential operator for integrating one-loop scattering equations
复制标题
一种对单环散射方程积分的微分算子
DOI:
10.1007/jhep01(2017)028
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发表时间:
2016-09
影响因子:
5.4
通讯作者:
徐峰
中科院分区:
文献类型:
--
作者:
王天珩;陈刚;张若筠;徐峰
A bstractWe propose a differential operator for computing the residues associated with a class of meromorphic n-forms that frequently appear in the Cachazo-He-Yuan form of the scattering amplitudes. This differential operator is conjectured to be uniquely determined by the local duality theorem and the intersection number of the divisors in the n-form. We use the operator to evaluate the one-loop integrand of Yang-Mills theory from their generalized CHY formulae. The method can reduce the complexity of the calculation. In addition, the expression for the 1-loop four-point Yang-Mills integrand obtained in our approach has a clear correspondence with the Q-cut results.
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影响因子:
2.4
作者:
E. Witten
通讯作者:
E. Witten
影响因子:
5.4
作者:
N. Berkovits
通讯作者:
N. Berkovits
DOI:
--
发表时间:
2012-06
期刊:
arXiv: High Energy Physics - Theory
影响因子:
--
作者:
F. Cachazo;Yvonne Geyer
通讯作者:
F. Cachazo;Yvonne Geyer
DOI:
10.3842/sigma.2014.051
发表时间:
2012-07
影响因子:
0.9
作者:
F. Cachazo;L. Mason;David Skinner
通讯作者:
F. Cachazo;L. Mason;David Skinner
影响因子:
5.4
作者:
F. Cachazo;Song He;E. Y. Yuan
通讯作者:
F. Cachazo;Song He;E. Y. Yuan