Loop amplitudes in an extended gravity theory

Loop amplitudes in an extended gravity theory
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扩展重力理论中的环振幅

DOI:
10.1016/j.physletb.2018.02.046
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发表时间:
2018
期刊:
影响因子:
4.4
通讯作者:
Dunbar D
Dunbar D
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Dunbar D

文献摘要

相似文献

通过在拉格朗日量中增加最小三点振幅或等价地增加R3项,我们推广了引力S矩阵。我们演示了如何可以使用统一性来简单地检查这个理论的可重正性,并确定在一个循环中出现的R 4反项。我们发现,在扩展的理论中出现的R 4项的组合是互补的R 4反长期与超对称拉格朗日。
We extend the S-matrix of gravity by the addition of the minimal three-point amplitude or equivalently adding R 3 terms to the Lagrangian. We demonstrate how Unitarity can be used to simply examine the renormalisability of this theory and determine the R 4 counter-terms that arise at one-loop. We find that the combination of R 4 terms that arise in the extended theory is complementary to the R 4 counter-term associated with supersymmetric Lagrangians.