- #1
Safinaz
- 260
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Hi all,
Has anyone an idea about the loop correction for quartic Higss coupling?
In [arXiv:1507.03618v2 [hep-ph]], equ. (13) it's pointed out that the perturbativity constrains on the quartic couplings in the Higgs potential is ## \lambda^2 < 16 \pi^2 ##
Which means that loop factor is ## \frac{\lambda^2}{(4 \pi)^2}##, but actually I don't why?
Any explanation or refernce about that ?
Has anyone an idea about the loop correction for quartic Higss coupling?
In [arXiv:1507.03618v2 [hep-ph]], equ. (13) it's pointed out that the perturbativity constrains on the quartic couplings in the Higgs potential is ## \lambda^2 < 16 \pi^2 ##
Which means that loop factor is ## \frac{\lambda^2}{(4 \pi)^2}##, but actually I don't why?
Any explanation or refernce about that ?
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