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Five-point superluminality bounds
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DOI：10.1007/JHEP06(2024)117.png)
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摘要
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We investigate how the speed of propagation of physical excitations is encoded in the coefficients of five-point interactions. This leads to a superluminality bound on scalar five-point interactions, which we present here for the first time. To substantiate our result, we also consider the case of four-point interactions for which bounds from S-matrix sum rules exist and show that these are parametrically equivalent to the bounds obtained within our analysis. Finally, we extend the discussion to a class of higher-point interactions.
Keyword:
Effective Field Theories
Classical Theories of Gravity
期刊
IF:
5.5
论文数:
4.0W
被引数:
13.7W
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